1:33 p.m.
Hello,
I have a test machine that is a nuc6 with an i5 and 32G of ram and SSD
disks.
It is configured as a single host environment with Self Hosted Engine VM.
Both host and SHE are CentOS 7.2 and oVirt version is 3.6.6.2-1.el7
I notice that having 3 VMs powered on and making nothing special (engine
VM, a CentOS 7 VM and a Fedora 24 VM) the ovirt-ha-agent process on host
often spikes its cpu usage.
See for example this quick video with top command running on host that
reflects what happens continuously.
https://drive.google.com/file/d/0BwoPbcrMv8mvYUVRMFlLVmxRdXM/view?usp=sha...
Is it normal that ovirt-ha-agent consumes all this amount of cpu?
Going into /var/log/ovirt-hosted-engine-ha/agent.log I see nothing special,
only messages of type "INFO". The same for broker.log
Thanks,
Gianluca
2:03 p.m.
Does the spikes correlates with info messages on extracting the ovf?
On Aug 8, 2016 1:33 PM, "Gianluca Cecchi" <gianluca.cecchi(a)gmail.com>
wrote:
Hello,
I have a test machine that is a nuc6 with an i5 and 32G of ram and SSD
disks.
It is configured as a single host environment with Self Hosted Engine VM.
Both host and SHE are CentOS 7.2 and oVirt version is 3.6.6.2-1.el7
I notice that having 3 VMs powered on and making nothing special (engine
VM, a CentOS 7 VM and a Fedora 24 VM) the ovirt-ha-agent process on host
often spikes its cpu usage.
See for example this quick video with top command running on host that
reflects what happens continuously.
https://drive.google.com/file/d/0BwoPbcrMv8mvYUVRMFlLVmxRdXM/
view?usp=sharing
Is it normal that ovirt-ha-agent consumes all this amount of cpu?
Going into /var/log/ovirt-hosted-engine-ha/agent.log I see nothing
special, only messages of type "INFO". The same for broker.log
Thanks,
Gianluca
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Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:09 p.m.
On Mon, Aug 8, 2016 at 1:03 PM, Roy Golan <rgolan(a)redhat.com> wrote:
Does the spikes correlates with info messages on extracting the ovf?
>
>
>
yes, it seems so and it happens every 14-15 seconds....
These are the lines I see scrolling in agent.log when I notice cpu spikes
in ovirt-ha-agent...
MainThread::INFO::2016-08-08
15:03:07,815::storage_server::212::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
Connecting storage server
MainThread::INFO::2016-08-08
15:03:08,144::storage_server::220::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
Refreshing the storage domain
MainThread::INFO::2016-08-08
15:03:08,705::hosted_engine::685::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
Preparing images
MainThread::INFO::2016-08-08
15:03:08,705::image::126::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images)
Preparing images
MainThread::INFO::2016-08-08
15:03:09,653::hosted_engine::688::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
Reloading vm.conf from the shared storage domain
MainThread::INFO::2016-08-08
15:03:09,653::config::205::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Trying to get a fresher copy of vm configuration from the OVF_STORE
MainThread::INFO::2016-08-08
15:03:09,843::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
Found OVF_STORE: imgUUID:223d26c2-1668-493c-a322-8054923d135f,
volUUID:108a362c-f5a9-440e-8817-1ed8a129afe8
MainThread::INFO::2016-08-08
15:03:10,309::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
Found OVF_STORE: imgUUID:12ca2fc6-01f7-41ab-ab22-e75c822ac9b6,
volUUID:1a18851e-6858-401c-be6e-af14415034b5
MainThread::INFO::2016-08-08
15:03:10,652::ovf_store::109::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
Extracting Engine VM OVF from the OVF_STORE
MainThread::INFO::2016-08-08
15:03:10,974::ovf_store::116::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
OVF_STORE volume path: /rhev/data-center/mnt/ovirt01.lutwyn.org:
_SHE__DOMAIN/31a9e9fd-8dcb-4475-aac4-09f897ee1b45/images/12ca2fc6-01f7-41ab-ab22-e75c822ac9b6/1a18851e-6858-401c-be6e-af14415034b5
MainThread::INFO::2016-08-08
15:03:11,494::config::225::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Found an OVF for HE VM, trying to convert
MainThread::INFO::2016-08-08
15:03:11,497::config::230::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Got vm.conf from OVF_STORE
MainThread::INFO::2016-08-08
15:03:11,675::hosted_engine::462::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring)
Current state EngineUp (score: 3400)
10:17 a.m.
Hi,
did you found a solution or cause for this high CPU usage?
I have installed the self hosted engine on another server and there is
no VM running but ovirt-ha-agent uses heavily the CPU.
cheers
gregor
On 08/08/16 15:09, Gianluca Cecchi wrote:
On Mon, Aug 8, 2016 at 1:03 PM, Roy Golan <rgolan(a)redhat.com
<mailto:rgolan@redhat.com>> wrote:
Does the spikes correlates with info messages on extracting the ovf?
yes, it seems so and it happens every 14-15 seconds....
These are the lines I see scrolling in agent.log when I notice cpu
spikes in ovirt-ha-agent...
MainThread::INFO::2016-08-08
15:03:07,815::storage_server::212::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
Connecting storage server
MainThread::INFO::2016-08-08
15:03:08,144::storage_server::220::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(connect_storage_server)
Refreshing the storage domain
MainThread::INFO::2016-08-08
15:03:08,705::hosted_engine::685::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
Preparing images
MainThread::INFO::2016-08-08
15:03:08,705::image::126::ovirt_hosted_engine_ha.lib.image.Image::(prepare_images)
Preparing images
MainThread::INFO::2016-08-08
15:03:09,653::hosted_engine::688::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(_initialize_storage_images)
Reloading vm.conf from the shared storage domain
MainThread::INFO::2016-08-08
15:03:09,653::config::205::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Trying to get a fresher copy of vm configuration from the OVF_STORE
MainThread::INFO::2016-08-08
15:03:09,843::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
Found OVF_STORE: imgUUID:223d26c2-1668-493c-a322-8054923d135f,
volUUID:108a362c-f5a9-440e-8817-1ed8a129afe8
MainThread::INFO::2016-08-08
15:03:10,309::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(scan)
Found OVF_STORE: imgUUID:12ca2fc6-01f7-41ab-ab22-e75c822ac9b6,
volUUID:1a18851e-6858-401c-be6e-af14415034b5
MainThread::INFO::2016-08-08
15:03:10,652::ovf_store::109::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
Extracting Engine VM OVF from the OVF_STORE
MainThread::INFO::2016-08-08
15:03:10,974::ovf_store::116::ovirt_hosted_engine_ha.lib.ovf.ovf_store.OVFStore::(getEngineVMOVF)
OVF_STORE volume path:
/rhev/data-center/mnt/ovirt01.lutwyn.org:_SHE__DOMAIN/31a9e9fd-8dcb-4475-aac4-09f897ee1b45/images/12ca2fc6-01f7-41ab-ab22-e75c822ac9b6/1a18851e-6858-401c-be6e-af14415034b5
MainThread::INFO::2016-08-08
15:03:11,494::config::225::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Found an OVF for HE VM, trying to convert
MainThread::INFO::2016-08-08
15:03:11,497::config::230::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine.config::(refresh_local_conf_file)
Got vm.conf from OVF_STORE
MainThread::INFO::2016-08-08
15:03:11,675::hosted_engine::462::ovirt_hosted_engine_ha.agent.hosted_engine.HostedEngine::(start_monitoring)
Current state EngineUp (score: 3400)
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10:24 a.m.
On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at> wrote:
Hi,
did you found a solution or cause for this high CPU usage?
I have installed the self hosted engine on another server and there is
no VM running but ovirt-ha-agent uses heavily the CPU.
Yes, it's due to the fact that ovirt-ha-agent periodically reconnects over
json rpc and this is CPU intensive since the client has to parse the yaml
API specification each time it connects.
The issue is tracked here:
https://bugzilla.redhat.com/show_bug.cgi?id=1349829 - ovirt-ha-agent should
reuse json-rpc connections
but it depends on:
https://bugzilla.redhat.com/show_bug.cgi?id=1376843 - [RFE] Implement a
keep-alive with reconnect if needed logic for the python jsonrpc client
cheers
gregor
On 08/08/16 15:09, Gianluca Cecchi wrote:
> On Mon, Aug 8, 2016 at 1:03 PM, Roy Golan <rgolan(a)redhat.com
> <mailto:rgolan@redhat.com>> wrote:
>
> Does the spikes correlates with info messages on extracting the ovf?
>
>
>
>
>
>
> yes, it seems so and it happens every 14-15 seconds....
>
> These are the lines I see scrolling in agent.log when I notice cpu
> spikes in ovirt-ha-agent...
>
> MainThread::INFO::2016-08-08
> 15:03:07,815::storage_server::212::ovirt_hosted_engine_ha.
lib.storage_server.StorageServer::(connect_storage_server)
> Connecting storage server
> MainThread::INFO::2016-08-08
> 15:03:08,144::storage_server::220::ovirt_hosted_engine_ha.
lib.storage_server.StorageServer::(connect_storage_server)
> Refreshing the storage domain
> MainThread::INFO::2016-08-08
> 15:03:08,705::hosted_engine::685::ovirt_hosted_engine_ha.
agent.hosted_engine.HostedEngine::(_initialize_storage_images)
> Preparing images
> MainThread::INFO::2016-08-08
> 15:03:08,705::image::126::ovirt_hosted_engine_ha.lib.
image.Image::(prepare_images)
> Preparing images
> MainThread::INFO::2016-08-08
> 15:03:09,653::hosted_engine::688::ovirt_hosted_engine_ha.
agent.hosted_engine.HostedEngine::(_initialize_storage_images)
> Reloading vm.conf from the shared storage domain
> MainThread::INFO::2016-08-08
> 15:03:09,653::config::205::ovirt_hosted_engine_ha.agent.
hosted_engine.HostedEngine.config::(refresh_local_conf_file)
> Trying to get a fresher copy of vm configuration from the OVF_STORE
> MainThread::INFO::2016-08-08
> 15:03:09,843::ovf_store::100::ovirt_hosted_engine_ha.lib.
ovf.ovf_store.OVFStore::(scan)
> Found OVF_STORE: imgUUID:223d26c2-1668-493c-a322-8054923d135f,
> volUUID:108a362c-f5a9-440e-8817-1ed8a129afe8
> MainThread::INFO::2016-08-08
> 15:03:10,309::ovf_store::100::ovirt_hosted_engine_ha.lib.
ovf.ovf_store.OVFStore::(scan)
> Found OVF_STORE: imgUUID:12ca2fc6-01f7-41ab-ab22-e75c822ac9b6,
> volUUID:1a18851e-6858-401c-be6e-af14415034b5
> MainThread::INFO::2016-08-08
> 15:03:10,652::ovf_store::109::ovirt_hosted_engine_ha.lib.
ovf.ovf_store.OVFStore::(getEngineVMOVF)
> Extracting Engine VM OVF from the OVF_STORE
> MainThread::INFO::2016-08-08
> 15:03:10,974::ovf_store::116::ovirt_hosted_engine_ha.lib.
ovf.ovf_store.OVFStore::(getEngineVMOVF)
> OVF_STORE volume path:
> /rhev/data-center/mnt/ovirt01.lutwyn.org:_SHE__DOMAIN/
31a9e9fd-8dcb-4475-aac4-09f897ee1b45/images/12ca2fc6-
01f7-41ab-ab22-e75c822ac9b6/1a18851e-6858-401c-be6e-af14415034b5
> MainThread::INFO::2016-08-08
> 15:03:11,494::config::225::ovirt_hosted_engine_ha.agent.
hosted_engine.HostedEngine.config::(refresh_local_conf_file)
> Found an OVF for HE VM, trying to convert
> MainThread::INFO::2016-08-08
> 15:03:11,497::config::230::ovirt_hosted_engine_ha.agent.
hosted_engine.HostedEngine.config::(refresh_local_conf_file)
> Got vm.conf from OVF_STORE
> MainThread::INFO::2016-08-08
> 15:03:11,675::hosted_engine::462::ovirt_hosted_engine_ha.
agent.hosted_engine.HostedEngine::(start_monitoring)
> Current state EngineUp (score: 3400)
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
11:34 a.m.
On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at> wrote:
> Hi,
>
> did you found a solution or cause for this high CPU usage?
> I have installed the self hosted engine on another server and there is
> no VM running but ovirt-ha-agent uses heavily the CPU.
>
Yes, it's due to the fact that ovirt-ha-agent periodically reconnects over
json rpc and this is CPU intensive since the client has to parse the yaml
API specification each time it connects.
Simone, reusing the connection is good idea anyway, but what you describe
is
a bug in the client library. The library does *not* need to load and parse
the
schema at all for sending requests to vdsm.
The schema is only needed if you want to verify request parameters,
or provide online help, these are not needed in a client library.
Please file an infra bug about it.
Nir
The issue is tracked here:
https://bugzilla.redhat.com/show_bug.cgi?id=1349829 - ovirt-ha-agent
should reuse json-rpc connections
but it depends on:
https://bugzilla.redhat.com/show_bug.cgi?id=1376843 - [RFE] Implement a
keep-alive with reconnect if needed logic for the python jsonrpc client
>
> cheers
> gregor
>
> On 08/08/16 15:09, Gianluca Cecchi wrote:
> > On Mon, Aug 8, 2016 at 1:03 PM, Roy Golan <rgolan(a)redhat.com
> > <mailto:rgolan@redhat.com>> wrote:
> >
> > Does the spikes correlates with info messages on extracting the ovf?
> >
> >
> >
> >
> >
> >
> > yes, it seems so and it happens every 14-15 seconds....
> >
> > These are the lines I see scrolling in agent.log when I notice cpu
> > spikes in ovirt-ha-agent...
> >
> > MainThread::INFO::2016-08-08
> > 15:03:07,815::storage_server::212::ovirt_hosted_engine_ha.li
> b.storage_server.StorageServer::(connect_storage_server)
> > Connecting storage server
> > MainThread::INFO::2016-08-08
> > 15:03:08,144::storage_server::220::ovirt_hosted_engine_ha.li
> b.storage_server.StorageServer::(connect_storage_server)
> > Refreshing the storage domain
> > MainThread::INFO::2016-08-08
> > 15:03:08,705::hosted_engine::685::ovirt_hosted_engine_ha.age
> nt.hosted_engine.HostedEngine::(_initialize_storage_images)
> > Preparing images
> > MainThread::INFO::2016-08-08
> > 15:03:08,705::image::126::ovirt_hosted_engine_ha.lib.image.
> Image::(prepare_images)
> > Preparing images
> > MainThread::INFO::2016-08-08
> > 15:03:09,653::hosted_engine::688::ovirt_hosted_engine_ha.age
> nt.hosted_engine.HostedEngine::(_initialize_storage_images)
> > Reloading vm.conf from the shared storage domain
> > MainThread::INFO::2016-08-08
> > 15:03:09,653::config::205::ovirt_hosted_engine_ha.agent.host
> ed_engine.HostedEngine.config::(refresh_local_conf_file)
> > Trying to get a fresher copy of vm configuration from the OVF_STORE
> > MainThread::INFO::2016-08-08
> > 15:03:09,843::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf
> .ovf_store.OVFStore::(scan)
> > Found OVF_STORE: imgUUID:223d26c2-1668-493c-a322-8054923d135f,
> > volUUID:108a362c-f5a9-440e-8817-1ed8a129afe8
> > MainThread::INFO::2016-08-08
> > 15:03:10,309::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf
> .ovf_store.OVFStore::(scan)
> > Found OVF_STORE: imgUUID:12ca2fc6-01f7-41ab-ab22-e75c822ac9b6,
> > volUUID:1a18851e-6858-401c-be6e-af14415034b5
> > MainThread::INFO::2016-08-08
> > 15:03:10,652::ovf_store::109::ovirt_hosted_engine_ha.lib.ovf
> .ovf_store.OVFStore::(getEngineVMOVF)
> > Extracting Engine VM OVF from the OVF_STORE
> > MainThread::INFO::2016-08-08
> > 15:03:10,974::ovf_store::116::ovirt_hosted_engine_ha.lib.ovf
> .ovf_store.OVFStore::(getEngineVMOVF)
> > OVF_STORE volume path:
> > /rhev/data-center/mnt/ovirt01.lutwyn.org:_SHE__DOMAIN/31a9e9
> fd-8dcb-4475-aac4-09f897ee1b45/images/12ca2fc6-01f7-41ab-
> ab22-e75c822ac9b6/1a18851e-6858-401c-be6e-af14415034b5
> > MainThread::INFO::2016-08-08
> > 15:03:11,494::config::225::ovirt_hosted_engine_ha.agent.host
> ed_engine.HostedEngine.config::(refresh_local_conf_file)
> > Found an OVF for HE VM, trying to convert
> > MainThread::INFO::2016-08-08
> > 15:03:11,497::config::230::ovirt_hosted_engine_ha.agent.host
> ed_engine.HostedEngine.config::(refresh_local_conf_file)
> > Got vm.conf from OVF_STORE
> > MainThread::INFO::2016-08-08
> > 15:03:11,675::hosted_engine::462::ovirt_hosted_engine_ha.age
> nt.hosted_engine.HostedEngine::(start_monitoring)
> > Current state EngineUp (score: 3400)
> >
> >
> > _______________________________________________
> > Users mailing list
> > Users(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
1:33 p.m.
On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi
<stirabos(a)redhat.com>
wrote:
>
>
> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at> wrote:
>
>> Hi,
>>
>> did you found a solution or cause for this high CPU usage?
>> I have installed the self hosted engine on another server and there is
>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>
>
> Yes, it's due to the fact that ovirt-ha-agent periodically reconnects
> over json rpc and this is CPU intensive since the client has to parse the
> yaml API specification each time it connects.
>
Simone, reusing the connection is good idea anyway, but what you describe
is
a bug in the client library. The library does *not* need to load and parse
the
schema at all for sending requests to vdsm.
The schema is only needed if you want to verify request parameters,
or provide online help, these are not needed in a client library.
Please file an infra bug about it.
Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
Thanks.
Nir
> The issue is tracked here:
> https://bugzilla.redhat.com/show_bug.cgi?id=1349829 - ovirt-ha-agent
> should reuse json-rpc connections
> but it depends on:
> https://bugzilla.redhat.com/show_bug.cgi?id=1376843 - [RFE] Implement a
> keep-alive with reconnect if needed logic for the python jsonrpc client
>
>
>
>>
>> cheers
>> gregor
>>
>> On 08/08/16 15:09, Gianluca Cecchi wrote:
>> > On Mon, Aug 8, 2016 at 1:03 PM, Roy Golan <rgolan(a)redhat.com
>> > <mailto:rgolan@redhat.com>> wrote:
>> >
>> > Does the spikes correlates with info messages on extracting the
>> ovf?
>> >
>> >
>> >
>> >
>> >
>> >
>> > yes, it seems so and it happens every 14-15 seconds....
>> >
>> > These are the lines I see scrolling in agent.log when I notice cpu
>> > spikes in ovirt-ha-agent...
>> >
>> > MainThread::INFO::2016-08-08
>> > 15:03:07,815::storage_server::212::ovirt_hosted_engine_ha.li
>> b.storage_server.StorageServer::(connect_storage_server)
>> > Connecting storage server
>> > MainThread::INFO::2016-08-08
>> > 15:03:08,144::storage_server::220::ovirt_hosted_engine_ha.li
>> b.storage_server.StorageServer::(connect_storage_server)
>> > Refreshing the storage domain
>> > MainThread::INFO::2016-08-08
>> > 15:03:08,705::hosted_engine::685::ovirt_hosted_engine_ha.age
>> nt.hosted_engine.HostedEngine::(_initialize_storage_images)
>> > Preparing images
>> > MainThread::INFO::2016-08-08
>> > 15:03:08,705::image::126::ovirt_hosted_engine_ha.lib.image.I
>> mage::(prepare_images)
>> > Preparing images
>> > MainThread::INFO::2016-08-08
>> > 15:03:09,653::hosted_engine::688::ovirt_hosted_engine_ha.age
>> nt.hosted_engine.HostedEngine::(_initialize_storage_images)
>> > Reloading vm.conf from the shared storage domain
>> > MainThread::INFO::2016-08-08
>> > 15:03:09,653::config::205::ovirt_hosted_engine_ha.agent.host
>> ed_engine.HostedEngine.config::(refresh_local_conf_file)
>> > Trying to get a fresher copy of vm configuration from the OVF_STORE
>> > MainThread::INFO::2016-08-08
>> > 15:03:09,843::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf
>> .ovf_store.OVFStore::(scan)
>> > Found OVF_STORE: imgUUID:223d26c2-1668-493c-a322-8054923d135f,
>> > volUUID:108a362c-f5a9-440e-8817-1ed8a129afe8
>> > MainThread::INFO::2016-08-08
>> > 15:03:10,309::ovf_store::100::ovirt_hosted_engine_ha.lib.ovf
>> .ovf_store.OVFStore::(scan)
>> > Found OVF_STORE: imgUUID:12ca2fc6-01f7-41ab-ab22-e75c822ac9b6,
>> > volUUID:1a18851e-6858-401c-be6e-af14415034b5
>> > MainThread::INFO::2016-08-08
>> > 15:03:10,652::ovf_store::109::ovirt_hosted_engine_ha.lib.ovf
>> .ovf_store.OVFStore::(getEngineVMOVF)
>> > Extracting Engine VM OVF from the OVF_STORE
>> > MainThread::INFO::2016-08-08
>> > 15:03:10,974::ovf_store::116::ovirt_hosted_engine_ha.lib.ovf
>> .ovf_store.OVFStore::(getEngineVMOVF)
>> > OVF_STORE volume path:
>> > /rhev/data-center/mnt/ovirt01.lutwyn.org:_SHE__DOMAIN/31a9e9
>> fd-8dcb-4475-aac4-09f897ee1b45/images/12ca2fc6-01f7-41ab-ab2
>> 2-e75c822ac9b6/1a18851e-6858-401c-be6e-af14415034b5
>> > MainThread::INFO::2016-08-08
>> > 15:03:11,494::config::225::ovirt_hosted_engine_ha.agent.host
>> ed_engine.HostedEngine.config::(refresh_local_conf_file)
>> > Found an OVF for HE VM, trying to convert
>> > MainThread::INFO::2016-08-08
>> > 15:03:11,497::config::230::ovirt_hosted_engine_ha.agent.host
>> ed_engine.HostedEngine.config::(refresh_local_conf_file)
>> > Got vm.conf from OVF_STORE
>> > MainThread::INFO::2016-08-08
>> > 15:03:11,675::hosted_engine::462::ovirt_hosted_engine_ha.age
>> nt.hosted_engine.HostedEngine::(start_monitoring)
>> > Current state EngineUp (score: 3400)
>> >
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users(a)ovirt.org
>> > http://lists.ovirt.org/mailman/listinfo/users
>> >
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
3:42 p.m.
On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com> wrote:
> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <stirabos(a)redhat.com>
> wrote:
>
>>
>>
>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at> wrote:
>>
>>> Hi,
>>>
>>> did you found a solution or cause for this high CPU usage?
>>> I have installed the self hosted engine on another server and there is
>>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>>
>>
>> Yes, it's due to the fact that ovirt-ha-agent periodically reconnects
>> over json rpc and this is CPU intensive since the client has to parse the
>> yaml API specification each time it connects.
>>
>
> Simone, reusing the connection is good idea anyway, but what you describe
> is
> a bug in the client library. The library does *not* need to load and
> parse the
> schema at all for sending requests to vdsm.
>
> The schema is only needed if you want to verify request parameters,
> or provide online help, these are not needed in a client library.
>
> Please file an infra bug about it.
>
Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
Here is a patch that should eliminate most most of the problem:
https://gerrit.ovirt.org/65230
Would be nice if it can be tested on the system showing this problem.
Cheers,
Nir
3:52 p.m.
--Apple-Mail=_7EB9EF8C-BE5A-48FF-82EF-9D77E5D03B01
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com>
wrote:
=20
On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com =
<mailto:stirabos@redhat.com>> wrote:
=20
=20
On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi =
<stirabos(a)redhat.com <mailto:stirabos@redhat.com>> wrote:
=20
=20
On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at =
<mailto:gregor_forum@catrix.at>> wrote:
Hi,
=20
did you found a solution or cause for this high CPU usage?
I have installed the self hosted engine on another server and there is
no VM running but ovirt-ha-agent uses heavily the CPU.
=20
Yes, it's due to the fact that ovirt-ha-agent periodically reconnects =
over
json rpc and this is CPU intensive since the client has to parse =
the yaml API specification each time it connects.
wasn=E2=80=99t it suppose to be fixed to reuse the connection? Like all =
the other clients (vdsm migration code:-)=20
Does schema validation matter then if there would be only one connection =
at the start up?
=20
Simone, reusing the connection is good idea anyway, but what you =
describe is=20
a bug in the client library. The library does *not* need to load and
=
parse the
schema at all for sending requests to vdsm.
=20
The schema is only needed if you want to verify request parameters,
or provide online help, these are not needed in a client library.
=20
Please file an infra bug about it.
=20
Done, https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899 =
<https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899>
=20
Here is a patch that should eliminate most most of the problem:
https://gerrit.ovirt.org/65230 <https://gerrit.ovirt.org/65230>
=20
Would be nice if it can be tested on the system showing this problem.
=20
Cheers,
Nir
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_7EB9EF8C-BE5A-48FF-82EF-9D77E5D03B01
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 7 Oct 2016, at 14:42, Nir Soffer <<a =
href=3D"mailto:nsoffer@redhat.com"
class=3D"">nsoffer(a)redhat.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote">On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi =
<span dir=3D"ltr" class=3D""><<a
href=3D"mailto:stirabos@redhat.com" =
target=3D"_blank"
class=3D"">stirabos(a)redhat.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px=
0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><br =
class=3D""><div class=3D"gmail_extra"><br
class=3D""><div =
class=3D"gmail_quote"><span class=3D"gmail-">On Wed, Oct 5,
2016 at =
10:34 AM, Nir Soffer <span dir=3D"ltr" class=3D""><<a
=
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><span class=3D"">On Wed, Oct 5, 2016 at
10:24 AM, =
Simone Tiraboschi <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:stirabos@redhat.com" target=3D"_blank" =
class=3D"">stirabos(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><br class=3D""><div
class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote"><span
class=3D"">On Wed, Oct 5, =
2016 at 9:17 AM, gregor <span dir=3D"ltr"
class=3D""><<a =
href=3D"mailto:gregor_forum@catrix.at" target=3D"_blank" =
class=3D"">gregor_forum(a)catrix.at</a>&gt;</span> wrote:<br
=
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br =
class=3D"">
<br class=3D"">
did you found a solution or cause for this high CPU usage?<br class=3D"">
I have installed the self hosted engine on another server and there =
is<br class=3D"">
no VM running but ovirt-ha-agent uses heavily the CPU.<br =
class=3D""></blockquote><div class=3D""><br
class=3D""></div></span>Yes, =
it's due to the fact that ovirt-ha-agent periodically reconnects over =
json rpc and this is CPU intensive since the client has to parse the =
yaml API specification each time it connects.<br =
class=3D""></div></div></div></blockquote></span></div></div></div></block=
quote></span></div></div></div></blockquote></div></div></div></div></bloc=
kquote><div><br class=3D""></div>wasn=E2=80=99t it suppose
to be fixed =
to reuse the connection? Like all the other clients (vdsm migration =
code:-) </div><div>Does schema validation matter then if there =
would be only one connection at the start up?</div><div><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><span =
class=3D"gmail-"><blockquote class=3D"gmail_quote"
style=3D"margin:0px =
0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><span
class=3D""><div =
class=3D""><br class=3D""></div></span><div
class=3D"">Simone, reusing =
the connection is good idea anyway, but what you describe =
is </div><div class=3D"">a bug in the client library. The
library =
does *not* need to load and parse the</div><div class=3D"">schema at
all =
for sending requests to vdsm.</div><div class=3D""><br =
class=3D""></div><div class=3D"">The schema is only
needed if you want =
to verify request parameters,</div><div class=3D"">or provide online
=
help, these are not needed in a client library.</div><div
class=3D""><br =
class=3D""></div><div class=3D"">Please file an infra
bug about =
it.</div></div></div></div></blockquote><div
class=3D""><br =
class=3D""></div></span><div class=3D"">Done,
<a =
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899" =
target=3D"_blank" class=3D"">https://bugzilla.redhat.com/<wbr =
class=3D"">show_bug.cgi?id=3D1381899</a></div></div></div></div></blockquo=
te><div class=3D""><br class=3D""></div><div
class=3D"">Here is a patch =
that should eliminate most most of the problem:</div><div
class=3D""><a =
href=3D"https://gerrit.ovirt.org/65230" =
class=3D"">https://gerrit.ovirt.org/65230</a><br
class=3D""></div><div =
class=3D""><br class=3D""></div><div
class=3D"">Would be nice if it can =
be tested on the system showing this problem.</div><div
class=3D""><br =
class=3D""></div><div
class=3D"">Cheers,</div><div =
class=3D"">Nir</div></div></div></div>
_______________________________________________<br class=3D"">Users =
mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org"
=
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br =
class=3D""></div></blockquote></div><br
class=3D""></body></html>=
--Apple-Mail=_7EB9EF8C-BE5A-48FF-82EF-9D77E5D03B01--
3:59 p.m.
On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
>
>
> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com> wrote:
>
>> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <stirabos(a)redhat.com>
>> wrote:
>>
>>>
>>>
>>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at> wrote:
>>>
>>>> Hi,
>>>>
>>>> did you found a solution or cause for this high CPU usage?
>>>> I have installed the self hosted engine on another server and there is
>>>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>>>
>>>
>>> Yes, it's due to the fact that ovirt-ha-agent periodically reconnects
>>> over json rpc and this is CPU intensive since the client has to parse the
>>> yaml API specification each time it connects.
>>>
>>
wasn’t it suppose to be fixed to reuse the connection? Like all the other
clients (vdsm migration code:-)
This is orthogonal issue.
Does schema validation matter then if there would be only one
connection
at the start up?
Loading once does not help command line tools like vdsClient, hosted-engine
and
vdsm-tool.
Nir
>> Simone, reusing the connection is good idea anyway, but what you
>> describe is
>> a bug in the client library. The library does *not* need to load and
>> parse the
>> schema at all for sending requests to vdsm.
>>
>> The schema is only needed if you want to verify request parameters,
>> or provide online help, these are not needed in a client library.
>>
>> Please file an infra bug about it.
>>
>
> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>
Here is a patch that should eliminate most most of the problem:
https://gerrit.ovirt.org/65230
Would be nice if it can be tested on the system showing this problem.
Cheers,
Nir
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:22 p.m.
On Fri, Oct 7, 2016 at 2:59 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
> wasn’t it suppose to be fixed to reuse the connection? Like all the other
> clients (vdsm migration code:-)
>
This is orthogonal issue.
> Does schema validation matter then if there would be only one connection
> at the start up?
>
Loading once does not help command line tools like vdsClient,
hosted-engine and
vdsm-tool.
Nir
>
>
>>> Simone, reusing the connection is good idea anyway, but what you
>>> describe is
>>> a bug in the client library. The library does *not* need to load and
>>> parse the
>>> schema at all for sending requests to vdsm.
>>>
>>> The schema is only needed if you want to verify request parameters,
>>> or provide online help, these are not needed in a client library.
>>>
>>> Please file an infra bug about it.
>>>
>>
>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>
>
> Here is a patch that should eliminate most most of the problem:
> https://gerrit.ovirt.org/65230
>
> Would be nice if it can be tested on the system showing this problem.
>
> Cheers,
> Nir
> _______________________________________________
>
>
this is a video of 1 minute with the same system as the first post, but in
4.0.3 now and the same 3 VMs powered on without any particular load.
It seems very similar to the previous 3.6.6 in cpu used by ovirt-ha-agent.
https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/view?usp=sha...
Enjoy Nir ;-)
If I can apply the patch also to 4.0.3 I'm going to see if there is then a
different behavior.
Let me know,
Gianluca
4:35 p.m.
On Fri, Oct 7, 2016 at 3:22 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Fri, Oct 7, 2016 at 2:59 PM, Nir Soffer <nsoffer(a)redhat.com>
wrote:
>
>> wasn’t it suppose to be fixed to reuse the connection? Like all the
>> other clients (vdsm migration code:-)
>>
>
> This is orthogonal issue.
>
>
>> Does schema validation matter then if there would be only one connection
>> at the start up?
>>
>
> Loading once does not help command line tools like vdsClient,
> hosted-engine and
> vdsm-tool.
>
> Nir
>
>
>>
>>
>>>> Simone, reusing the connection is good idea anyway, but what you
>>>> describe is
>>>> a bug in the client library. The library does *not* need to load and
>>>> parse the
>>>> schema at all for sending requests to vdsm.
>>>>
>>>> The schema is only needed if you want to verify request parameters,
>>>> or provide online help, these are not needed in a client library.
>>>>
>>>> Please file an infra bug about it.
>>>>
>>>
>>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>>
>>
>> Here is a patch that should eliminate most most of the problem:
>> https://gerrit.ovirt.org/65230
>>
>> Would be nice if it can be tested on the system showing this problem.
>>
>> Cheers,
>> Nir
>> _______________________________________________
>>
>>
this is a video of 1 minute with the same system as the first post, but in
4.0.3 now and the same 3 VMs powered on without any particular load.
It seems very similar to the previous 3.6.6 in cpu used by ovirt-ha-agent.
https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/
view?usp=sharing
Enjoy Nir ;-)
If I can apply the patch also to 4.0.3 I'm going to see if there is then a
different behavior.
Let me know,
I'm trying it right now.
Any other tests will be really appreciated.
The patch is pretty simply, you can apply that on the fly.
You have to shutdown ovirt-ha-broker and ovirt-ha-agent; then you could
directly edit
/usr/lib/python2.7/site-packages/api/vdsmapi.py
around line 97 changing from
loaded_schema = yaml.load(f)
to
loaded_schema = yaml.load(f, Loader=yaml.CLoader)
Please pay attention to keep exactly the same amount of initial spaces.
Then you can simply restart the HA agent and check.
Gianluca
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
5:13 p.m.
On Fri, Oct 7, 2016 at 3:35 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On Fri, Oct 7, 2016 at 3:22 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com
> wrote:
> On Fri, Oct 7, 2016 at 2:59 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
>
>>
>>> wasn’t it suppose to be fixed to reuse the connection? Like all the
>>> other clients (vdsm migration code:-)
>>>
>>
>> This is orthogonal issue.
>>
>>
>>> Does schema validation matter then if there would be only one
>>> connection at the start up?
>>>
>>
>> Loading once does not help command line tools like vdsClient,
>> hosted-engine and
>> vdsm-tool.
>>
>> Nir
>>
>>
>>>
>>>
>>>>> Simone, reusing the connection is good idea anyway, but what you
>>>>> describe is
>>>>> a bug in the client library. The library does *not* need to load and
>>>>> parse the
>>>>> schema at all for sending requests to vdsm.
>>>>>
>>>>> The schema is only needed if you want to verify request parameters,
>>>>> or provide online help, these are not needed in a client library.
>>>>>
>>>>> Please file an infra bug about it.
>>>>>
>>>>
>>>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>>>
>>>
>>> Here is a patch that should eliminate most most of the problem:
>>> https://gerrit.ovirt.org/65230
>>>
>>> Would be nice if it can be tested on the system showing this problem.
>>>
>>> Cheers,
>>> Nir
>>> _______________________________________________
>>>
>>>
>
> this is a video of 1 minute with the same system as the first post, but
> in 4.0.3 now and the same 3 VMs powered on without any particular load.
> It seems very similar to the previous 3.6.6 in cpu used by ovirt-ha-agent.
>
> https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8
> /view?usp=sharing
>
> Enjoy Nir ;-)
>
> If I can apply the patch also to 4.0.3 I'm going to see if there is then
> a different behavior.
> Let me know,
>
>
I'm trying it right now.
Any other tests will be really appreciated.
The patch is pretty simply, you can apply that on the fly.
You have to shutdown ovirt-ha-broker and ovirt-ha-agent; then you could
directly edit
/usr/lib/python2.7/site-packages/api/vdsmapi.py
around line 97 changing from
loaded_schema = yaml.load(f)
to
loaded_schema = yaml.load(f, Loader=yaml.CLoader)
Please pay attention to keep exactly the same amount of initial spaces.
Then you can simply restart the HA agent and check.
Gianluca
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
What I've done (I didn't read your answer in between and this is a test
system not so important... )
set to global maintenance
patch vdsmapi.py
restart vdsmd
restart ovirt-ha-agent
set maintenance to none
And a bright new 3-minutes video here:
https://drive.google.com/file/d/0BwoPbcrMv8mvVzBPUVRQa1pwVnc/view?usp=sha...
It seems that now ovirt-ha-agent or is not present in top cpu process or at
least has ranges between 5% and 12% and not more....
BTW: I see this in vdsm status now
[root@ovirt01 api]# systemctl status vdsmd
● vdsmd.service - Virtual Desktop Server Manager
Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled; vendor
preset: enabled)
Active: active (running) since Fri 2016-10-07 15:30:57 CEST; 32min ago
Process: 20883 ExecStopPost=/usr/libexec/vdsm/vdsmd_init_common.sh
--post-stop (code=exited, status=0/SUCCESS)
Process: 20886 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh
--pre-start (code=exited, status=0/SUCCESS)
Main PID: 21023 (vdsm)
CGroup: /system.slice/vdsmd.service
├─21023 /usr/bin/python /usr/share/vdsm/vdsm
├─21117 /usr/libexec/ioprocess --read-pipe-fd 41 --write-pipe-fd
40 --max-threads 10 --max-queue...
├─21123 /usr/libexec/ioprocess --read-pipe-fd 48 --write-pipe-fd
46 --max-threads 10 --max-queue...
├─21134 /usr/libexec/ioprocess --read-pipe-fd 57 --write-pipe-fd
56 --max-threads 10 --max-queue...
├─21143 /usr/libexec/ioprocess --read-pipe-fd 65 --write-pipe-fd
64 --max-threads 10 --max-queue...
├─21149 /usr/libexec/ioprocess --read-pipe-fd 73 --write-pipe-fd
72 --max-threads 10 --max-queue...
├─21156 /usr/libexec/ioprocess --read-pipe-fd 80 --write-pipe-fd
78 --max-threads 10 --max-queue...
├─21177 /usr/libexec/ioprocess --read-pipe-fd 88 --write-pipe-fd
87 --max-threads 10 --max-queue...
├─21204 /usr/libexec/ioprocess --read-pipe-fd 99 --write-pipe-fd
98 --max-threads 10 --max-queue...
└─21239 /usr/libexec/ioprocess --read-pipe-fd 111
--write-pipe-fd 110 --max-threads 10 --max-que...
Oct 07 16:02:52 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:02:54 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:02:56 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:02:58 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:11 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:15 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:15 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:18 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:20 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Oct 07 16:03:22 ovirt01.lutwyn.org vdsm[21023]: vdsm vds.dispatcher ERROR
SSL error during reading data... eof
Hint: Some lines were ellipsized, use -l to show in full.
[root@ovirt01 api]#
Now I also restarted ovirt-ha-broker just in case
5:39 p.m.
And a bright new 3-minutes video here:
https://drive.google.com/file/d/0BwoPbcrMv8mvVzBPUVRQa1pwVnc/
view?usp=sharing
It seems that now ovirt-ha-agent or is not present in top cpu process
or
at least has ranges between 5% and 12% and not more....
5-12% is probably 10 times more than needed for the agent, profiling
should tell us where time is spent.
Since the agent depends on vdsm, we can reuse vdsm cpu profiler, see
lib/vdsm/profiling/cpu.py. It is not ready yet to be used by other
applications,
but making it more general should be easy.
Nir
8:05 p.m.
This is a multi-part message in MIME format.
--------------AF2BBEDF3BE980A51607346C
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Content-Transfer-Encoding: 8bit
it worked for me as well - load avg. < 1 now, ovirt-ha-agent pops up in
top periodically, but not on top using 100% CPU all the time anymore.
thanks!
sam
Gianluca Cecchi wrote on 10/7/2016 10:13 AM:
On Fri, Oct 7, 2016 at 3:35 PM, Simone Tiraboschi <stirabos(a)redhat.com
<mailto:stirabos@redhat.com>> wrote:
On Fri, Oct 7, 2016 at 3:22 PM, Gianluca Cecchi
<gianluca.cecchi(a)gmail.com <mailto:gianluca.cecchi@gmail.com>> wrote:
On Fri, Oct 7, 2016 at 2:59 PM, Nir Soffer <nsoffer(a)redhat.com
<mailto:nsoffer@redhat.com>> wrote:
wasn’t it suppose to be fixed to reuse the connection?
Like all the other clients (vdsm migration code:-)
This is orthogonal issue.
Does schema validation matter then if there would be
only one connection at the start up?
Loading once does not help command line tools like
vdsClient, hosted-engine and
vdsm-tool.
Nir
>
> Simone, reusing the connection is good idea
> anyway, but what you describe is
> a bug in the client library. The library does
> *not* need to load and parse the
> schema at all for sending requests to vdsm.
>
> The schema is only needed if you want to
> verify request parameters,
> or provide online help, these are not needed
> in a client library.
>
> Please file an infra bug about it.
>
>
> Done,
> https://bugzilla.redhat.com/show_bug.cgi?id=1381899
> <https://bugzilla.redhat.com/show_bug.cgi?id=1381899>
>
>
> Here is a patch that should eliminate most most of
> the problem:
> https://gerrit.ovirt.org/65230
>
> Would be nice if it can be tested on the system
> showing this problem.
>
> Cheers,
> Nir
> _______________________________________________
this is a video of 1 minute with the same system as the first
post, but in 4.0.3 now and the same 3 VMs powered on without
any particular load.
It seems very similar to the previous 3.6.6 in cpu used by
ovirt-ha-agent.
https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/view?usp=sha...
<https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/view?usp=sha...
Enjoy Nir ;-)
If I can apply the patch also to 4.0.3 I'm going to see if
there is then a different behavior.
Let me know,
I'm trying it right now.
Any other tests will be really appreciated.
The patch is pretty simply, you can apply that on the fly.
You have to shutdown ovirt-ha-broker and ovirt-ha-agent; then you
could directly edit
/usr/lib/python2.7/site-packages/api/vdsmapi.py
around line 97 changing from
loaded_schema = yaml.load(f)
to
loaded_schema = yaml.load(f, Loader=yaml.CLoader)
Please pay attention to keep exactly the same amount of initial
spaces.
Then you can simply restart the HA agent and check.
Gianluca
_______________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users
<http://lists.ovirt.org/mailman/listinfo/users>
What I've done (I didn't read your answer in between and this is a
test system not so important... )
set to global maintenance
patch vdsmapi.py
restart vdsmd
restart ovirt-ha-agent
set maintenance to none
And a bright new 3-minutes video here:
https://drive.google.com/file/d/0BwoPbcrMv8mvVzBPUVRQa1pwVnc/view?usp=sha...
It seems that now ovirt-ha-agent or is not present in top cpu process
or at least has ranges between 5% and 12% and not more....
BTW: I see this in vdsm status now
[root@ovirt01 api]# systemctl status vdsmd
● vdsmd.service - Virtual Desktop Server Manager
Loaded: loaded (/usr/lib/systemd/system/vdsmd.service; enabled;
vendor preset: enabled)
Active: active (running) since Fri 2016-10-07 15:30:57 CEST; 32min ago
Process: 20883 ExecStopPost=/usr/libexec/vdsm/vdsmd_init_common.sh
--post-stop (code=exited, status=0/SUCCESS)
Process: 20886 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh
--pre-start (code=exited, status=0/SUCCESS)
Main PID: 21023 (vdsm)
CGroup: /system.slice/vdsmd.service
├─21023 /usr/bin/python /usr/share/vdsm/vdsm
├─21117 /usr/libexec/ioprocess --read-pipe-fd 41
--write-pipe-fd 40 --max-threads 10 --max-queue...
├─21123 /usr/libexec/ioprocess --read-pipe-fd 48
--write-pipe-fd 46 --max-threads 10 --max-queue...
├─21134 /usr/libexec/ioprocess --read-pipe-fd 57
--write-pipe-fd 56 --max-threads 10 --max-queue...
├─21143 /usr/libexec/ioprocess --read-pipe-fd 65
--write-pipe-fd 64 --max-threads 10 --max-queue...
├─21149 /usr/libexec/ioprocess --read-pipe-fd 73
--write-pipe-fd 72 --max-threads 10 --max-queue...
├─21156 /usr/libexec/ioprocess --read-pipe-fd 80
--write-pipe-fd 78 --max-threads 10 --max-queue...
├─21177 /usr/libexec/ioprocess --read-pipe-fd 88
--write-pipe-fd 87 --max-threads 10 --max-queue...
├─21204 /usr/libexec/ioprocess --read-pipe-fd 99
--write-pipe-fd 98 --max-threads 10 --max-queue...
└─21239 /usr/libexec/ioprocess --read-pipe-fd 111
--write-pipe-fd 110 --max-threads 10 --max-que...
Oct 07 16:02:52 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:02:54 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:02:56 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:02:58 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:11 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:15 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:15 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:18 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:20 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Oct 07 16:03:22 ovirt01.lutwyn.org <http://ovirt01.lutwyn.org>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during reading
data... eof
Hint: Some lines were ellipsized, use -l to show in full.
[root@ovirt01 api]#
Now I also restarted ovirt-ha-broker just in case
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--------------AF2BBEDF3BE980A51607346C
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<html>
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</head>
<body bgcolor="#FFFFFF" text="#000000">
it worked for me as well - load avg. < 1 now, ovirt-ha-agent pops
up in top periodically, but not on top using 100% CPU all the time
anymore.<br>
thanks!<br>
sam<br>
<br>
<div class="moz-cite-prefix">Gianluca Cecchi wrote on 10/7/2016
10:13 AM:<br>
</div>
<blockquote
cite="mid:CAG2kNCzOviMzgm=NYArWKROQen5BJDudQ0AES8xr+qvqAHFzMg@mail.gmail.com"
type="cite">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Oct 7, 2016 at 3:35 PM,
Simone Tiraboschi <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:stirabos@redhat.com"
target="_blank">stirabos(a)redhat.com</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr"><br>
<div class="gmail_extra"><br>
<div class="gmail_quote">
<div>
<div class="gmail-h5">On Fri, Oct 7, 2016 at 3:22
PM, Gianluca Cecchi <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:gianluca.cecchi@gmail.com"
target="_blank">gianluca.cecchi(a)gmail.com</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr"><span
class="gmail-m_2782938339651103979gmail-">
<div class="gmail_extra">
<div class="gmail_quote">On Fri, Oct 7,
2016 at 2:59 PM, Nir Soffer <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:nsoffer@redhat.com"
target="_blank">nsoffer(a)redhat.com</a>&gt;</span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div class="gmail_extra">
<div
class="gmail_quote"><span>
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px
solid
rgb(204,204,204);padding-left:1ex">
<div
style="word-wrap:break-word">
<div><span>
<div><br>
</div>
</span>wasn’t it
suppose to be fixed to
reuse the connection?
Like all the other
clients (vdsm
migration code:-) </div>
</div>
</blockquote>
<div><br>
</div>
</span>
<div>This is orthogonal
issue.</div>
<span>
<div> </div>
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px
solid
rgb(204,204,204);padding-left:1ex">
<div
style="word-wrap:break-word">
<div>Does schema
validation matter then
if there would be only
one connection at the
start up?</div>
</div>
</blockquote>
<div><br>
</div>
</span>
<div>Loading once does not
help command line tools like
vdsClient, hosted-engine and</div>
<div>vdsm-tool. </div>
<span><font
color="#888888">
<div><br>
</div>
<div>Nir</div>
</font></span><span>
<div> </div>
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px
solid
rgb(204,204,204);padding-left:1ex">
<div
style="word-wrap:break-word">
<div><br>
<blockquote
type="cite">
<div><span>
<div dir="ltr">
<div
class="gmail_extra">
<div
class="gmail_quote">
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div
class="gmail_extra">
<div
class="gmail_quote"><span>
<blockquote
class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div
class="gmail_extra">
<div
class="gmail_quote"><span>
<div><br>
</div>
</span>
<div>Simone,
reusing the
connection is
good idea
anyway, but
what you
describe is </div>
<div>a bug in
the client
library. The
library does
*not* need to
load and parse
the</div>
<div>schema at
all for
sending
requests to
vdsm.</div>
<div><br>
</div>
<div>The
schema is only
needed if you
want to verify
request
parameters,</div>
<div>or
provide online
help, these
are not needed
in a client
library.</div>
<div><br>
</div>
<div>Please
file an infra
bug about it.</div>
</div>
</div>
</div>
</blockquote>
<div><br>
</div>
</span>
<div>Done, <a
moz-do-not-send="true"
href="https://bugzilla.redhat.com/show_bug.cgi?id=1381899"
target="_blank">https://bugzilla.redhat.com/sh<wbr>ow_...
</div>
</div>
</div>
</blockquote>
<div><br>
</div>
<div>Here is a
patch that
should
eliminate most
most of the
problem:</div>
<div><a
moz-do-not-send="true"
href="https://gerrit.ovirt.org/65230"
target="_blank">https://gerrit.ovirt.org/65230</a><...
</div>
<div><br>
</div>
<div>Would be
nice if it can
be tested on
the system
showing this
problem.</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Nir</div>
</div>
</div>
</div>
</span><span>
______________________________<wbr>_________________<br>
</span></div>
</blockquote>
</div>
</div>
</blockquote>
</span></div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
<div class="gmail_extra"><br>
</div>
</span>
<div class="gmail_extra">this is a video of
1 minute with the same system as the first
post, but in 4.0.3 now and the same 3 VMs
powered on without any particular load.</div>
<div class="gmail_extra">It seems very
similar to the previous 3.6.6 in cpu used
by ovirt-ha-agent.</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra"><a
moz-do-not-send="true"
href="https://drive.google.com/file/d/0BwoPbcrMv8mvSjFDUERzV1owTG8/v...
target="_blank">https://drive.google.com/file/<wbr>d/0...
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Enjoy Nir
;-)<br>
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">If I can apply the
patch also to 4.0.3 I'm going to see if
there is then a different behavior. </div>
<div class="gmail_extra">Let me
know,</div>
<div class="gmail_extra"><br>
</div>
</div>
</blockquote>
<div><br>
</div>
</div>
</div>
<div>I'm trying it right now.</div>
<div>Any other tests will be really appreciated.</div>
<div><br>
</div>
<div>The patch is pretty simply, you can apply that
on the fly.</div>
<div>You have to shutdown ovirt-ha-broker and
ovirt-ha-agent; then you could directly edit </div>
<div>/usr/lib/python2.7/site-<wbr>packages/api/vdsmapi.py<br>
</div>
<div>around line 97 changing from</div>
<div>loaded_schema = yaml.load(f)<br>
</div>
<div>to</div>
<div>loaded_schema = yaml.load(f,
Loader=yaml.CLoader)<br>
</div>
<div>Please pay attention to keep exactly the same
amount of initial spaces.<br>
</div>
<div><br>
</div>
<div>Then you can simply restart the HA agent and
check.</div>
<div><br>
</div>
<blockquote class="gmail_quote" style="margin:0px
0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div dir="ltr">
<div class="gmail_extra">Gianluca</div>
</div>
<span class="gmail-">
<br>
______________________________<wbr>_________________<br>
Users mailing list<br>
<a moz-do-not-send="true"
href="mailto:Users@ovirt.org"
target="_blank">Users(a)ovirt.org</a><br>
<a moz-do-not-send="true"
href="http://lists.ovirt.org/mailman/listinfo/users"
rel="noreferrer"
target="_blank">http://lists.ovirt.org/mailman<wbr>/li...
<br>
</span></blockquote>
</div>
<br>
</div>
</div>
</blockquote>
</div>
<br>
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">What I've done (I didn't read
your
answer in between and this is a test system not so
important... )</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">set to global maintenance</div>
<div class="gmail_extra">patch vdsmapi.py</div>
<div class="gmail_extra">restart vdsmd </div>
<div class="gmail_extra">restart ovirt-ha-agent</div>
<div class="gmail_extra">set maintenance to none</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">And a bright new 3-minutes video
here:</div>
<div class="gmail_extra"><a moz-do-not-send="true"
href="https://drive.google.com/file/d/0BwoPbcrMv8mvVzBPUVRQa1pwVnc/v...
</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">It seems that now ovirt-ha-agent or is
not present in top cpu process or at least has ranges between
5% and 12% and not more....</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">BTW: I see this in vdsm status
now </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">
<div class="gmail_extra">[root@ovirt01 api]# systemctl status
vdsmd </div>
<div class="gmail_extra">● vdsmd.service - Virtual Desktop
Server Manager</div>
<div class="gmail_extra"> Loaded: loaded
(/usr/lib/systemd/system/vdsmd.service; enabled; vendor
preset: enabled)</div>
<div class="gmail_extra"> Active: active (running) since Fri
2016-10-07 15:30:57 CEST; 32min ago</div>
<div class="gmail_extra"> Process: 20883
ExecStopPost=/usr/libexec/vdsm/vdsmd_init_common.sh
--post-stop (code=exited, status=0/SUCCESS)</div>
<div class="gmail_extra"> Process: 20886
ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh
--pre-start (code=exited, status=0/SUCCESS)</div>
<div class="gmail_extra"> Main PID: 21023 (vdsm)</div>
<div class="gmail_extra"> CGroup:
/system.slice/vdsmd.service</div>
<div class="gmail_extra"> ├─21023 /usr/bin/python
/usr/share/vdsm/vdsm</div>
<div class="gmail_extra"> ├─21117
/usr/libexec/ioprocess --read-pipe-fd 41 --write-pipe-fd 40
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21123
/usr/libexec/ioprocess --read-pipe-fd 48 --write-pipe-fd 46
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21134
/usr/libexec/ioprocess --read-pipe-fd 57 --write-pipe-fd 56
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21143
/usr/libexec/ioprocess --read-pipe-fd 65 --write-pipe-fd 64
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21149
/usr/libexec/ioprocess --read-pipe-fd 73 --write-pipe-fd 72
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21156
/usr/libexec/ioprocess --read-pipe-fd 80 --write-pipe-fd 78
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21177
/usr/libexec/ioprocess --read-pipe-fd 88 --write-pipe-fd 87
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> ├─21204
/usr/libexec/ioprocess --read-pipe-fd 99 --write-pipe-fd 98
--max-threads 10 --max-queue...</div>
<div class="gmail_extra"> └─21239
/usr/libexec/ioprocess --read-pipe-fd 111 --write-pipe-fd
110 --max-threads 10 --max-que...</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Oct 07 16:02:52 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:02:54 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:02:56 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:02:58 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:11 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:15 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:15 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:18 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:20 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Oct 07 16:03:22 <a
moz-do-not-send="true"
href="http://ovirt01.lutwyn.org">ovirt01.lutwyn.org</a>
vdsm[21023]: vdsm vds.dispatcher ERROR SSL error during
reading data... eof</div>
<div class="gmail_extra">Hint: Some lines were ellipsized, use
-l to show in full.</div>
<div class="gmail_extra">[root@ovirt01 api]# </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Now I also restarted ovirt-ha-broker
just in case</div>
<div class="gmail_extra"><br>
</div>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
</body>
</html>
--------------AF2BBEDF3BE980A51607346C--
12:59 a.m.
On Fri, Oct 7, 2016 at 3:35 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
If I can apply the patch also to 4.0.3 I'm going to see if there is then a
different behavior.
Let me know,
I'm trying it right now.
Any other tests will be really appreciated.
The patch is pretty simply, you can apply that on the fly.
You have to shutdown ovirt-ha-broker and ovirt-ha-agent; then you could
directly edit
/usr/lib/python2.7/site-packages/api/vdsmapi.py
around line 97 changing from
loaded_schema = yaml.load(f)
to
loaded_schema = yaml.load(f, Loader=yaml.CLoader)
Please pay attention to keep exactly the same amount of initial spaces.
Then you can simply restart the HA agent and check.
Hello,
I'm again registering high spikes of ovirt-ha-agent with only 2-3 VMs up
and with almost no activity
The package of the involved file
/usr/lib/python2.7/site-packages/api/vdsmapi.py
is now at veriosn vdsm-api-4.19.4-1.el7.centos.noarch and I see that the
file contains this kind of lines
129 try:
130 for path in paths:
131 with open(path) as f:
132 if hasattr(yaml, 'CLoader'):
133 loader = yaml.CLoader
134 else:
135 loader = yaml.Loader
136 loaded_schema = yaml.load(f, Loader=loader)
137
138 types = loaded_schema.pop('types')
139 self._types.update(types)
140 self._methods.update(loaded_schema)
141 except EnvironmentError:
142 raise SchemaNotFound("Unable to find API schema file")
So there is a conditional statement...
How can I be sure that "loader" is set to "yaml.CLoader" that was what
in
4.0 was able to lower the cpu usage of ovirt-ha-agent?
Thanks,
Gianluca
12:28 a.m.
On Tue, Apr 25, 2017 at 12:59 AM Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Fri, Oct 7, 2016 at 3:35 PM, Simone Tiraboschi
<stirabos(a)redhat.com>
wrote:
>
>
>
> If I can apply the patch also to 4.0.3 I'm going to see if there is then
> a different behavior.
> Let me know,
>
>
> I'm trying it right now.
> Any other tests will be really appreciated.
>
> The patch is pretty simply, you can apply that on the fly.
> You have to shutdown ovirt-ha-broker and ovirt-ha-agent; then you could
> directly edit
> /usr/lib/python2.7/site-packages/api/vdsmapi.py
> around line 97 changing from
> loaded_schema = yaml.load(f)
> to
> loaded_schema = yaml.load(f, Loader=yaml.CLoader)
> Please pay attention to keep exactly the same amount of initial spaces.
>
> Then you can simply restart the HA agent and check.
>
>
Hello,
I'm again registering high spikes of ovirt-ha-agent with only 2-3 VMs up
and with almost no activity
The package of the involved file
/usr/lib/python2.7/site-packages/api/vdsmapi.py is now at veriosn
vdsm-api-4.19.4-1.el7.centos.noarch and I see that the file contains this
kind of lines
129 try:
130 for path in paths:
131 with open(path) as f:
132 if hasattr(yaml, 'CLoader'):
133 loader = yaml.CLoader
134 else:
135 loader = yaml.Loader
136 loaded_schema = yaml.load(f, Loader=loader)
137
138 types = loaded_schema.pop('types')
139 self._types.update(types)
140 self._methods.update(loaded_schema)
141 except EnvironmentError:
142 raise SchemaNotFound("Unable to find API schema file")
So there is a conditional statement...
How can I be sure that "loader" is set to "yaml.CLoader" that was
what in
4.0 was able to lower the cpu usage of ovirt-ha-agent?
Hi Gianluca,
You can run this on the host:
$ python -c "import yaml; print 'CLoader:', hasattr(yaml,
'CLoader')"
CLoader: True
If you get "CLoader: False", you have some packaging issue, CLoader
is available on all supported platforms.
Nir
Thanks,
Gianluca
11:36 a.m.
On Tue, Apr 25, 2017 at 11:28 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
Hi Gianluca,
You can run this on the host:
$ python -c "import yaml; print 'CLoader:', hasattr(yaml,
'CLoader')"
CLoader: True
If you get "CLoader: False", you have some packaging issue, CLoader
is available on all supported platforms.
Nir
> Thanks,
> Gianluca
>
>
It seems ok.
[root@ovirt01 ovirt-hosted-engine-ha]# python -c "import yaml; print
'CLoader:', hasattr(yaml, 'CLoader')"
CLoader: True
[root@ovirt01 ovirt-hosted-engine-ha]#
Anyway see here a sample of the spikes that it cntinues to have.. from 15%
to 55% many times
https://drive.google.com/file/d/0BwoPbcrMv8mvMy1xVUE3YzI2YVE/view?usp=sha...
The host is an Intel NUC6i5 with 32Gb of ram. There are the engine, an F25
guest and a C7 desktop VMs running, without doing almost anything.
Gianluca
1:52 p.m.
On Wed, Apr 26, 2017 at 11:36 AM Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Tue, Apr 25, 2017 at 11:28 PM, Nir Soffer
<nsoffer(a)redhat.com> wrote:
>
>
> Hi Gianluca,
>
> You can run this on the host:
>
> $ python -c "import yaml; print 'CLoader:', hasattr(yaml,
'CLoader')"
> CLoader: True
>
> If you get "CLoader: False", you have some packaging issue, CLoader
> is available on all supported platforms.
>
> Nir
>
>
>> Thanks,
>> Gianluca
>>
>>
It seems ok.
[root@ovirt01 ovirt-hosted-engine-ha]# python -c "import yaml; print
'CLoader:', hasattr(yaml, 'CLoader')"
CLoader: True
[root@ovirt01 ovirt-hosted-engine-ha]#
Anyway see here a sample of the spikes that it cntinues to have.. from 15%
to 55% many times
https://drive.google.com/file/d/0BwoPbcrMv8mvMy1xVUE3YzI2YVE/view?usp=sha...
There are two issues in this video:
- Memory leak, ovirt-ha-agent is using 1g of memory. It is very unlikely
that it needs so much memory.
- Unusual cpu usage - but not the kind of usage related to yaml parsing.
I would open two bugs for this. We have seen the first issue few month ago,
and
we did nothing about it so the memory leak was not fixed.
To understand the unusual cpu usage, we need to integrate yappi into
ovirt-ha-agent,
and do some profiling to understand where cpu time is spent.
Simone, can you do something based on these patches?
https://gerrit.ovirt.org/#/q/topic:generic-profiler
I hope to get these patches merged soon.
Nir
The host is an Intel NUC6i5 with 32Gb of ram. There are the engine, an F25
guest and a C7 desktop VMs running, without doing almost anything.
Gianluca
2:28 p.m.
On Wed, Apr 26, 2017 at 12:52 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Wed, Apr 26, 2017 at 11:36 AM Gianluca Cecchi <
gianluca.cecchi(a)gmail.com> wrote:
> On Tue, Apr 25, 2017 at 11:28 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
>
>>
>>
>> Hi Gianluca,
>>
>> You can run this on the host:
>>
>> $ python -c "import yaml; print 'CLoader:', hasattr(yaml,
'CLoader')"
>> CLoader: True
>>
>> If you get "CLoader: False", you have some packaging issue, CLoader
>> is available on all supported platforms.
>>
>> Nir
>>
>>
>>> Thanks,
>>> Gianluca
>>>
>>>
>
> It seems ok.
>
> [root@ovirt01 ovirt-hosted-engine-ha]# python -c "import yaml; print
> 'CLoader:', hasattr(yaml, 'CLoader')"
> CLoader: True
> [root@ovirt01 ovirt-hosted-engine-ha]#
>
> Anyway see here a sample of the spikes that it cntinues to have.. from
> 15% to 55% many times
> https://drive.google.com/file/d/0BwoPbcrMv8mvMy1xVUE3YzI2YVE/
> view?usp=sharing
>
There are two issues in this video:
- Memory leak, ovirt-ha-agent is using 1g of memory. It is very unlikely
that it needs so much memory.
- Unusual cpu usage - but not the kind of usage related to yaml parsing.
I would open two bugs for this. We have seen the first issue few month
ago, and
we did nothing about it so the memory leak was not fixed.
To understand the unusual cpu usage, we need to integrate yappi into
ovirt-ha-agent,
and do some profiling to understand where cpu time is spent.
Simone, can you do something based on these patches?
https://gerrit.ovirt.org/#/q/topic:generic-profiler
I hope to get these patches merged soon.
Absolutely at this point.
Nir
>
>
> The host is an Intel NUC6i5 with 32Gb of ram. There are the engine, an
> F25 guest and a C7 desktop VMs running, without doing almost anything.
>
> Gianluca
>
>
5:28 p.m.
On Wed, Apr 26, 2017 at 1:28 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On Wed, Apr 26, 2017 at 12:52 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
> On Wed, Apr 26, 2017 at 11:36 AM Gianluca Cecchi <
> gianluca.cecchi(a)gmail.com> wrote:
>
>> On Tue, Apr 25, 2017 at 11:28 PM, Nir Soffer <nsoffer(a)redhat.com> wrote:
>>
>>>
>>>
>>> Hi Gianluca,
>>>
>>> You can run this on the host:
>>>
>>> $ python -c "import yaml; print 'CLoader:', hasattr(yaml,
'CLoader')"
>>> CLoader: True
>>>
>>> If you get "CLoader: False", you have some packaging issue,
CLoader
>>> is available on all supported platforms.
>>>
>>> Nir
>>>
>>>
>>>> Thanks,
>>>> Gianluca
>>>>
>>>>
>>
>> It seems ok.
>>
>> [root@ovirt01 ovirt-hosted-engine-ha]# python -c "import yaml; print
>> 'CLoader:', hasattr(yaml, 'CLoader')"
>> CLoader: True
>> [root@ovirt01 ovirt-hosted-engine-ha]#
>>
>> Anyway see here a sample of the spikes that it cntinues to have.. from
>> 15% to 55% many times
>> https://drive.google.com/file/d/0BwoPbcrMv8mvMy1xVUE3YzI2YVE
>> /view?usp=sharing
>>
>
> There are two issues in this video:
> - Memory leak, ovirt-ha-agent is using 1g of memory. It is very unlikely
> that it needs so much memory.
> - Unusual cpu usage - but not the kind of usage related to yaml parsing.
>
> I would open two bugs for this. We have seen the first issue few month
> ago, and
> we did nothing about it so the memory leak was not fixed.
>
> To understand the unusual cpu usage, we need to integrate yappi into
> ovirt-ha-agent,
> and do some profiling to understand where cpu time is spent.
>
> Simone, can you do something based on these patches?
> https://gerrit.ovirt.org/#/q/topic:generic-profiler
>
> I hope to get these patches merged soon.
>
>
Absolutely at this point.
On 4.1.1, the 96% of the cpu time of ovirt-ha-agent is still spent in
connect() in /usr/lib/python2.7/site-packages/vdsm/jsonrpcvdscli.py
and the 95.98% is in Schema.__init__
in /usr/lib/python2.7/site-packages/vdsm/api/vdsmapi.py
So it's still the parsing of the api yaml schema.
On master we already merged a patch to reuse an existing connection if
available and this should mitigate/resolve the issue:
https://gerrit.ovirt.org/73757/
It's still not that clear why we are facing this kind of performance
regression.
Nir
>
>
>>
>>
>> The host is an Intel NUC6i5 with 32Gb of ram. There are the engine, an
>> F25 guest and a C7 desktop VMs running, without doing almost anything.
>>
>> Gianluca
>>
>>
5:52 p.m.
On Wed, Apr 26, 2017 at 4:28 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On 4.1.1, the 96% of the cpu time of ovirt-ha-agent is still spent in
connect() in /usr/lib/python2.7/site-packages/vdsm/jsonrpcvdscli.py
and the 95.98% is in Schema.__init__ in /usr/lib/python2.7/site-
packages/vdsm/api/vdsmapi.py
So it's still the parsing of the api yaml schema.
On master we already merged a patch to reuse an existing connection if
available and this should mitigate/resolve the issue:
https://gerrit.ovirt.org/73757/
It's still not that clear why we are facing this kind of performance
regression.
Does this mean that I could try to patch the
ovirt_hosted_engine_ha/lib/util.py file also in my 4.1.1 install and
verify if it solves...?
Or do I have to wait an official patched rpm?
Gianluca
5:54 p.m.
On Wed, Apr 26, 2017 at 4:52 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Wed, Apr 26, 2017 at 4:28 PM, Simone Tiraboschi
<stirabos(a)redhat.com>
wrote:
>
>
>
> On 4.1.1, the 96% of the cpu time of ovirt-ha-agent is still spent in
> connect() in /usr/lib/python2.7/site-packages/vdsm/jsonrpcvdscli.py
> and the 95.98% is in Schema.__init__ in /usr/lib/python2.7/site-pac
> kages/vdsm/api/vdsmapi.py
>
> So it's still the parsing of the api yaml schema.
> On master we already merged a patch to reuse an existing connection if
> available and this should mitigate/resolve the issue:
> https://gerrit.ovirt.org/73757/
>
> It's still not that clear why we are facing this kind of performance
> regression.
>
>
Does this mean that I could try to patch the ovirt_hosted_engine_ha/lib/util.py
file also in my 4.1.1 install and verify if it solves...?
Unfortunately it's not enough by itself since it also requires
https://gerrit.ovirt.org/#/c/58029/
Or do I have to wait an official patched rpm?
Gianluca
7:14 p.m.
On Wed, Apr 26, 2017 at 4:54 PM, Simone Tiraboschi <stirabos(a)redhat.com>
wrote:
On Wed, Apr 26, 2017 at 4:52 PM, Gianluca Cecchi <
gianluca.cecchi(a)gmail.com> wrote:
> On Wed, Apr 26, 2017 at 4:28 PM, Simone Tiraboschi <stirabos(a)redhat.com>
> wrote:
>
>>
>>
>>
>> On 4.1.1, the 96% of the cpu time of ovirt-ha-agent is still spent in
>> connect() in /usr/lib/python2.7/site-packages/vdsm/jsonrpcvdscli.py
>> and the 95.98% is in Schema.__init__ in /usr/lib/python2.7/site-pac
>> kages/vdsm/api/vdsmapi.py
>>
>> So it's still the parsing of the api yaml schema.
>> On master we already merged a patch to reuse an existing connection if
>> available and this should mitigate/resolve the issue:
>> https://gerrit.ovirt.org/73757/
>>
>> It's still not that clear why we are facing this kind of performance
>> regression.
>>
>>
> Does this mean that I could try to patch the
> ovirt_hosted_engine_ha/lib/util.py file also in my 4.1.1 install and
> verify if it solves...?
>
Unfortunately it's not enough by itself since it also requires
https://gerrit.ovirt.org/#/c/58029/
> Or do I have to wait an official patched rpm?
>
> Gianluca
>
And what if I change all the 3 files involved in the 2 gerrit entries:
ovirt_hosted_engine_ha/lib/util.py
lib/yajsonrpc/stomp.py
lib/yajsonrpc/stompreactor.py
?
10:09 a.m.
On Wed, Apr 26, 2017 at 6:14 PM, Gianluca Cecchi <gianluca.cecchi(a)gmail.com>
wrote:
On Wed, Apr 26, 2017 at 4:54 PM, Simone Tiraboschi
<stirabos(a)redhat.com>
wrote:
>
>
> On Wed, Apr 26, 2017 at 4:52 PM, Gianluca Cecchi <
> gianluca.cecchi(a)gmail.com> wrote:
>
>> On Wed, Apr 26, 2017 at 4:28 PM, Simone Tiraboschi <stirabos(a)redhat.com>
>> wrote:
>>
>>>
>>>
>>>
>>> On 4.1.1, the 96% of the cpu time of ovirt-ha-agent is still spent in
>>> connect() in /usr/lib/python2.7/site-packages/vdsm/jsonrpcvdscli.py
>>> and the 95.98% is in Schema.__init__ in /usr/lib/python2.7/site-pac
>>> kages/vdsm/api/vdsmapi.py
>>>
>>> So it's still the parsing of the api yaml schema.
>>> On master we already merged a patch to reuse an existing connection if
>>> available and this should mitigate/resolve the issue:
>>> https://gerrit.ovirt.org/73757/
>>>
>>> It's still not that clear why we are facing this kind of performance
>>> regression.
>>>
>>>
>> Does this mean that I could try to patch the
>> ovirt_hosted_engine_ha/lib/util.py file also in my 4.1.1 install and
>> verify if it solves...?
>>
>
> Unfortunately it's not enough by itself since it also requires
> https://gerrit.ovirt.org/#/c/58029/
>
>
>> Or do I have to wait an official patched rpm?
>>
>> Gianluca
>>
>
>
And what if I change all the 3 files involved in the 2 gerrit entries:
ovirt_hosted_engine_ha/lib/util.py
lib/yajsonrpc/stomp.py
lib/yajsonrpc/stompreactor.py
?
Yes, it should work although we never officially back-ported and tested it
for 4.1.z.
4:25 p.m.
--Apple-Mail=_7AA15767-F85A-473B-A84A-0184BA1DE5EB
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
On 7 Oct 2016, at 14:59, Nir Soffer <nsoffer(a)redhat.com>
wrote:
=20
On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek =
<michal.skrivanek(a)redhat.com
<mailto:michal.skrivanek@redhat.com>> =
wrote:
=20
> On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
>=20
> On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi =
<stirabos(a)redhat.com
<mailto:stirabos@redhat.com>> wrote:
>=20
>=20
> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi =
<stirabos(a)redhat.com <mailto:stirabos@redhat.com>> wrote:
>=20
>=20
> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at =
<mailto:gregor_forum@catrix.at>> wrote:
> Hi,
>=20
> did you found a solution or cause for this high CPU usage?
> I have installed the self hosted engine on another server and there =
is
> no VM running but ovirt-ha-agent uses heavily the CPU.
>=20
> Yes, it's due to the fact that ovirt-ha-agent periodically reconnects =
over json rpc and this is CPU intensive since the client has to parse =
the yaml API specification each time it connects.
=20
wasn=E2=80=99t it suppose to be fixed to reuse the connection? Like =
all the other
clients (vdsm migration code:-)=20
=20
This is orthogonal issue.
Yes it is. And that=E2=80=99s the issue;-)
Both are wrong, but by =E2=80=9Cfixing=E2=80=9D the schema validation =
only you lose the motivation to fix the meaningless wasteful reconnect
=20
Does schema validation matter then if there would be only one =
connection at the
start up?
=20
Loading once does not help command line tools like vdsClient, =
hosted-engine and
vdsm-tool.=20
none of the other tools is using json-rpc.
=20
Nir
=20
=20
>=20
> Simone, reusing the connection is good idea anyway, but what you =
describe
is=20
> a bug in the client library. The library does *not* need to load
and =
parse the
> schema at all for sending requests to vdsm.
>=20
> The schema is only needed if you want to verify request parameters,
> or provide online help, these are not needed in a client library.
>=20
> Please file an infra bug about it.
>=20
> Done, https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899 =
<https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899>
>=20
> Here is a patch that should eliminate most most of the problem:
> https://gerrit.ovirt.org/65230 <https://gerrit.ovirt.org/65230>
>=20
> Would be nice if it can be tested on the system showing this problem.
>=20
> Cheers,
> Nir
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org>
> http://lists.ovirt.org/mailman/listinfo/users =
<http://lists.ovirt.org/mailman/listinfo/users>
=20
=20
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_7AA15767-F85A-473B-A84A-0184BA1DE5EB
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 7 Oct 2016, at 14:59, Nir Soffer <<a =
href=3D"mailto:nsoffer@redhat.com"
class=3D"">nsoffer(a)redhat.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote">On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek =
<span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:michal.skrivanek@redhat.com" target=3D"_blank" =
class=3D"">michal.skrivanek(a)redhat.com</a>&gt;</span>
wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0 0 0 =
.8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><br
class=3D""><div =
class=3D""><span class=3D""><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 7 Oct 2016, at 14:42, Nir Soffer <<a =
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt; wrote:</div><br
class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote">On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi =
<span dir=3D"ltr" class=3D""><<a
href=3D"mailto:stirabos@redhat.com" =
target=3D"_blank"
class=3D"">stirabos(a)redhat.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px=
0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><br =
class=3D""><div class=3D"gmail_extra"><br
class=3D""><div =
class=3D"gmail_quote"><span class=3D"">On Wed, Oct 5, 2016 at
10:34 AM, =
Nir Soffer <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><span class=3D"">On Wed, Oct 5, 2016 at
10:24 AM, =
Simone Tiraboschi <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:stirabos@redhat.com" target=3D"_blank" =
class=3D"">stirabos(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><br class=3D""><div
class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote"><span
class=3D"">On Wed, Oct 5, =
2016 at 9:17 AM, gregor <span dir=3D"ltr"
class=3D""><<a =
href=3D"mailto:gregor_forum@catrix.at" target=3D"_blank" =
class=3D"">gregor_forum(a)catrix.at</a>&gt;</span> wrote:<br
=
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br =
class=3D"">
<br class=3D"">
did you found a solution or cause for this high CPU usage?<br class=3D"">
I have installed the self hosted engine on another server and there =
is<br class=3D"">
no VM running but ovirt-ha-agent uses heavily the CPU.<br =
class=3D""></blockquote><div class=3D""><br
class=3D""></div></span>Yes, =
it's due to the fact that ovirt-ha-agent periodically reconnects over =
json rpc and this is CPU intensive since the client has to parse the =
yaml API specification each time it connects.<br =
class=3D""></div></div></div></blockquote></span></div></div></div></block=
quote></span></div></div></div></blockquote></div></div></div></div></bloc=
kquote><div class=3D""><br
class=3D""></div></span>wasn=E2=80=99t it =
suppose to be fixed to reuse the connection? Like all the other clients =
(vdsm migration code:-) </div></div></blockquote><div
class=3D""><br =
class=3D""></div><div class=3D"">This is orthogonal =
issue.</div></div></div></div></div></blockquote><div><br
=
class=3D""></div>Yes it is. And that=E2=80=99s the =
issue;-)</div><div>Both are wrong, but by =E2=80=9Cfixing=E2=80=9D the =
schema validation only you lose the motivation to fix the meaningless =
wasteful reconnect</div><div><br class=3D""><blockquote
type=3D"cite" =
class=3D""><div class=3D""><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><div =
class=3D""> </div><blockquote
class=3D"gmail_quote" style=3D"margin:0=
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D"">Does schema =
validation matter then if there would be only one connection at the =
start up?</div></div></blockquote><div class=3D""><br
=
class=3D""></div><div class=3D"">Loading once does not
help command line =
tools like vdsClient, hosted-engine and</div><div =
class=3D"">vdsm-tool. </div></div></div></div></div></blockquote><div=
<br class=3D""></div>none of the other tools is
using =
json-rpc.</div><div><br
class=3D""><blockquote type=3D"cite" =
class=3D""><div class=3D""><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><div
class=3D""><br =
class=3D""></div><div class=3D"">Nir</div><div
=
class=3D""> </div><blockquote
class=3D"gmail_quote" style=3D"margin:0=
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D""><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><span =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><span =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><span class=3D""><div
class=3D""><br =
class=3D""></div></span><div class=3D"">Simone,
reusing the connection =
is good idea anyway, but what you describe is </div><div
class=3D"">a=
bug in the client library. The library does *not* need to load and =
parse the</div><div class=3D"">schema at all for sending requests to
=
vdsm.</div><div class=3D""><br
class=3D""></div><div class=3D"">The =
schema is only needed if you want to verify request =
parameters,</div><div class=3D"">or provide online help, these are
not =
needed in a client library.</div><div class=3D""><br
class=3D""></div><div=
class=3D"">Please file an infra bug about =
it.</div></div></div></div></blockquote><div
class=3D""><br =
class=3D""></div></span><div class=3D"">Done,
<a =
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899" =
target=3D"_blank" class=3D"">https://bugzilla.redhat.com/sh<wbr
=
class=3D"">ow_bug.cgi?id=3D1381899</a></div></div></div></div></blockquote=
<div class=3D""><br
class=3D""></div><div class=3D"">Here is a patch =
that should eliminate most most of the problem:</div><div
class=3D""><a =
href=3D"https://gerrit.ovirt.org/65230" target=3D"_blank" =
class=3D"">https://gerrit.ovirt.org/65230</a><br
class=3D""></div><div =
class=3D""><br class=3D""></div><div
class=3D"">Would be nice if it can =
be tested on the system showing this problem.</div><div
class=3D""><br =
class=3D""></div><div
class=3D"">Cheers,</div><div =
class=3D"">Nir</div></div></div></div></span><span
class=3D"">
______________________________<wbr class=3D"">_________________<br =
class=3D"">Users mailing list<br class=3D""><a =
href=3D"mailto:Users@ovirt.org" target=3D"_blank" =
class=3D"">Users(a)ovirt.org</a><br class=3D""><a =
href=3D"http://lists.ovirt.org/mailman/listinfo/users"
target=3D"_blank" =
class=3D"">http://lists.ovirt.org/<wbr =
class=3D"">mailman/listinfo/users</a><br =
class=3D""></span></div></blockquote></div><br =
class=3D""></div></blockquote></div><br
class=3D""></div></div>
_______________________________________________<br class=3D"">Users =
mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org"
=
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br =
class=3D""></div></blockquote></div><br
class=3D""></body></html>=
--Apple-Mail=_7AA15767-F85A-473B-A84A-0184BA1DE5EB--
4:28 p.m.
On Fri, Oct 7, 2016 at 3:25 PM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
On 7 Oct 2016, at 14:59, Nir Soffer <nsoffer(a)redhat.com> wrote:
On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
>
> On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com> wrote:
>
> On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com>
> wrote:
>
>>
>>
>> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com> wrote:
>>
>>> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <stirabos(a)redhat.com
>>> > wrote:
>>>
>>>>
>>>>
>>>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at>
wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> did you found a solution or cause for this high CPU usage?
>>>>> I have installed the self hosted engine on another server and there
is
>>>>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>>>>
>>>>
>>>> Yes, it's due to the fact that ovirt-ha-agent periodically
reconnects
>>>> over json rpc and this is CPU intensive since the client has to parse
the
>>>> yaml API specification each time it connects.
>>>>
>>>
> wasn’t it suppose to be fixed to reuse the connection? Like all the other
> clients (vdsm migration code:-)
>
This is orthogonal issue.
Yes it is. And that’s the issue;-)
Both are wrong, but by “fixing” the schema validation only you lose the
motivation to fix the meaningless wasteful reconnect
Yes, we are going to fix that too (
https://bugzilla.redhat.com/show_bug.cgi?id=1349829 ) but it would require
also https://bugzilla.redhat.com/show_bug.cgi?id=1376843 to be fixed.
> Does schema validation matter then if there would be only one connection
> at the start up?
>
Loading once does not help command line tools like vdsClient,
hosted-engine and
vdsm-tool.
none of the other tools is using json-rpc.
hosted-engine-setup is, and sooner or later we'll have to migrate also the
remaining tools since xmlrpc has been deprecated with 4.0
Nir
>
>
>>> Simone, reusing the connection is good idea anyway, but what you
>>> describe is
>>> a bug in the client library. The library does *not* need to load and
>>> parse the
>>> schema at all for sending requests to vdsm.
>>>
>>> The schema is only needed if you want to verify request parameters,
>>> or provide online help, these are not needed in a client library.
>>>
>>> Please file an infra bug about it.
>>>
>>
>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>
>
> Here is a patch that should eliminate most most of the problem:
> https://gerrit.ovirt.org/65230
>
> Would be nice if it can be tested on the system showing this problem.
>
> Cheers,
> Nir
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
5:02 p.m.
--Apple-Mail=_B5E3106A-94F6-40B0-A9A6-4DD310F17BA3
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
On 7 Oct 2016, at 15:28, Simone Tiraboschi
<stirabos(a)redhat.com> =
wrote:
=20
=20
=20
On Fri, Oct 7, 2016 at 3:25 PM, Michal Skrivanek =
<michal.skrivanek(a)redhat.com
<mailto:michal.skrivanek@redhat.com>> =
wrote:
=20
> On 7 Oct 2016, at 14:59, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
>=20
> On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek =
<michal.skrivanek(a)redhat.com <mailto:michal.skrivanek@redhat.com>> =
wrote:
>=20
>> On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
>>=20
>> On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi =
<stirabos(a)redhat.com
<mailto:stirabos@redhat.com>> wrote:
>>=20
>>=20
>> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com =
<mailto:nsoffer@redhat.com>> wrote:
>> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi =
<stirabos(a)redhat.com <mailto:stirabos@redhat.com>> wrote:
>>=20
>>=20
>> On Wed, Oct 5, 2016 at 9:17 AM, gregor <gregor_forum(a)catrix.at =
<mailto:gregor_forum@catrix.at>> wrote:
>> Hi,
>>=20
>> did you found a solution or cause for this high CPU usage?
>> I have installed the self hosted engine on another server and there =
is
>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>=20
>> Yes, it's due to the fact that ovirt-ha-agent periodically =
reconnects
over json rpc and this is CPU intensive since the client has =
to parse the yaml API specification each time it connects.
>=20
> wasn=E2=80=99t it suppose to be fixed to reuse the connection? Like =
all the
other clients (vdsm migration code:-)=20
>=20
> This is orthogonal issue.
=20
Yes it is. And that=E2=80=99s the issue;-)
Both are wrong, but by =E2=80=9Cfixing=E2=80=9D the schema validation =
only you
lose the motivation to fix the meaningless wasteful reconnect
=20
Yes, we are going to fix that too ( =
https://bugzilla.redhat.com/show_bug.cgi?id=3D1349829 =
<https://bugzilla.redhat.com/show_bug.cgi?id=3D1349829> )
that=E2=80=99s great! Also al the other vdsClient uses?:-)
What is that periodic one call anyway? Is there only one? Maybe we =
don=E2=80=99t need it so much.
but it would require also =
https://bugzilla.redhat.com/show_bug.cgi?id=3D1376843 =
<https://bugzilla.redhat.com/show_bug.cgi?id=3D1376843> to be fixed.
This is less good. Well, worst case you can reconnect yourself, all you =
need is a notification when the existing connection breaks
=20
=20
> =20
> Does schema validation matter then if there would be only one =
connection at
the start up?
>=20
> Loading once does not help command line tools like vdsClient, =
hosted-engine
and
> vdsm-tool.=20
=20
none of the other tools is using json-rpc.
=20
hosted-engine-setup is, and sooner or later we'll have to migrate also =
the
remaining tools since xmlrpc has been deprecated with 4.0
ok. though setup is a one-time action so it=E2=80=99s not an issue there
=20
=20
>=20
> Nir
> =20
>=20
>>=20
>> Simone, reusing the connection is good idea anyway, but what you =
describe
is=20
>> a bug in the client library. The library does *not* need to
load and =
parse the
>> schema at all for sending requests to vdsm.
>>=20
>> The schema is only needed if you want to verify request parameters,
>> or provide online help, these are not needed in a client library.
>>=20
>> Please file an infra bug about it.
>>=20
>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899 =
<https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899>
>>=20
>> Here is a patch that should eliminate most most of the problem:
>> https://gerrit.ovirt.org/65230 <https://gerrit.ovirt.org/65230>
>>=20
>> Would be nice if it can be tested on the system showing this =
problem.
>>=20
>> Cheers,
>> Nir
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org <mailto:Users@ovirt.org>
>> http://lists.ovirt.org/mailman/listinfo/users =
<http://lists.ovirt.org/mailman/listinfo/users>
>=20
>=20
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org <mailto:Users@ovirt.org>
> http://lists.ovirt.org/mailman/listinfo/users =
<http://lists.ovirt.org/mailman/listinfo/users>
=20
=20
_______________________________________________
Users mailing list
Users(a)ovirt.org <mailto:Users@ovirt.org>
http://lists.ovirt.org/mailman/listinfo/users =
<http://lists.ovirt.org/mailman/listinfo/users>
=20
=20
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_B5E3106A-94F6-40B0-A9A6-4DD310F17BA3
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
charset=utf-8
<html><head><meta http-equiv=3D"Content-Type"
content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 7 Oct 2016, at 15:28, Simone Tiraboschi <<a =
href=3D"mailto:stirabos@redhat.com"
class=3D"">stirabos(a)redhat.com</a>&gt;=
wrote:</div><br class=3D"Apple-interchange-newline"><div
class=3D""><div =
dir=3D"ltr" class=3D""><br class=3D""><div
class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote">On Fri, Oct 7, 2016 at
3:25 PM, =
Michal Skrivanek <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:michal.skrivanek@redhat.com" target=3D"_blank" =
class=3D"">michal.skrivanek(a)redhat.com</a>&gt;</span>
wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><br
class=3D""><div =
class=3D""><span class=3D"gmail-"><blockquote
type=3D"cite" =
class=3D""><div class=3D"">On 7 Oct 2016, at 14:59, Nir
Soffer <<a =
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt; wrote:</div><br
class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote">On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek =
<span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:michal.skrivanek@redhat.com" target=3D"_blank" =
class=3D"">michal.skrivanek(a)redhat.com</a>&gt;</span>
wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><br
class=3D""><div =
class=3D""><span class=3D""><blockquote
type=3D"cite" class=3D""><div =
class=3D"">On 7 Oct 2016, at 14:42, Nir Soffer <<a =
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt; wrote:</div><br
class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote">On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi =
<span dir=3D"ltr" class=3D""><<a
href=3D"mailto:stirabos@redhat.com" =
target=3D"_blank"
class=3D"">stirabos(a)redhat.com</a>&gt;</span> =
wrote:<br class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px=
0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><br =
class=3D""><div class=3D"gmail_extra"><br
class=3D""><div =
class=3D"gmail_quote"><span class=3D"">On Wed, Oct 5, 2016 at
10:34 AM, =
Nir Soffer <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:nsoffer@redhat.com" target=3D"_blank" =
class=3D"">nsoffer(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><span class=3D"">On Wed, Oct 5, 2016 at
10:24 AM, =
Simone Tiraboschi <span dir=3D"ltr" class=3D""><<a =
href=3D"mailto:stirabos@redhat.com" target=3D"_blank" =
class=3D"">stirabos(a)redhat.com</a>&gt;</span> wrote:<br =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><br class=3D""><div
class=3D"gmail_extra"><br =
class=3D""><div class=3D"gmail_quote"><span
class=3D"">On Wed, Oct 5, =
2016 at 9:17 AM, gregor <span dir=3D"ltr"
class=3D""><<a =
href=3D"mailto:gregor_forum@catrix.at" target=3D"_blank" =
class=3D"">gregor_forum(a)catrix.at</a>&gt;</span> wrote:<br
=
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br =
class=3D"">
<br class=3D"">
did you found a solution or cause for this high CPU usage?<br class=3D"">
I have installed the self hosted engine on another server and there =
is<br class=3D"">
no VM running but ovirt-ha-agent uses heavily the CPU.<br =
class=3D""></blockquote><div class=3D""><br
class=3D""></div></span>Yes, =
it's due to the fact that ovirt-ha-agent periodically reconnects over =
json rpc and this is CPU intensive since the client has to parse the =
yaml API specification each time it connects.<br =
class=3D""></div></div></div></blockquote></span></div></div></div></block=
quote></span></div></div></div></blockquote></div></div></div></div></bloc=
kquote><div class=3D""><br
class=3D""></div></span>wasn=E2=80=99t it =
suppose to be fixed to reuse the connection? Like all the other clients =
(vdsm migration code:-) </div></div></blockquote><div
class=3D""><br =
class=3D""></div><div class=3D"">This is orthogonal =
issue.</div></div></div></div></div></blockquote><div
class=3D""><br =
class=3D""></div></span>Yes it is. And that=E2=80=99s the =
issue;-)</div><div class=3D"">Both are wrong, but by
=E2=80=9Cfixing=E2=80=
=9D the schema validation only you lose the motivation to fix the =
meaningless wasteful reconnect</div></div></blockquote><div
class=3D""><br=
class=3D""></div><div class=3D"">Yes, we are going to
fix that too ( <a =
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1349829" =
class=3D"">https://bugzilla.redhat.com/show_bug.cgi?id=3D134...
)
</div></div></div></div></div></blockquote><div><br
=
class=3D""></div>that=E2=80=99s great! Also al the other vdsClient =
uses?:-)</div><div>What is that periodic one call anyway? Is there only =
one? Maybe we don=E2=80=99t need it so much.</div><div><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><div class=3D"">but it would require
also <a =
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1376843" =
class=3D"">https://bugzilla.redhat.com/show_bug.cgi?id=3D137...
to be
fixed.</div></div></div></div></div></blockquote><div><br
=
class=3D""></div>This is less good. Well, worst case you can reconnect
=
yourself, all you need is a notification when the existing connection =
breaks</div><div><br class=3D""><blockquote
type=3D"cite" class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><div
class=3D""> </div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D""><span =
class=3D"gmail-"><br class=3D""><blockquote
type=3D"cite" class=3D""><div =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><div
class=3D""> </div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D"">Does schema =
validation matter then if there would be only one connection at the =
start up?</div></div></blockquote><div class=3D""><br
=
class=3D""></div><div class=3D"">Loading once does not
help command line =
tools like vdsClient, hosted-engine and</div><div =
class=3D"">vdsm-tool. </div></div></div></div></div></blockquote><div=
class=3D""><br class=3D""></div></span>none of
the other tools is using =
json-rpc.</div></div></blockquote><div class=3D""><br
=
class=3D""></div><div class=3D"">hosted-engine-setup
is, and sooner or =
later we'll have to migrate also the remaining tools since xmlrpc has =
been deprecated with =
4.0</div></div></div></div></div></blockquote><div><br
=
class=3D""></div>ok. though setup is a one-time action so it=E2=80=99s
=
not an issue there</div><div><br class=3D""><blockquote
type=3D"cite" =
class=3D""><div class=3D""><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><div =
class=3D""> </div><blockquote
class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div
style=3D"word-wrap:break-word" =
class=3D""><span class=3D"gmail-"><div
class=3D""><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><div class=3D""><br
class=3D""></div><div =
class=3D"">Nir</div><div
class=3D""> </div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px =
solid rgb(204,204,204);padding-left:1ex"><div =
style=3D"word-wrap:break-word" class=3D""><div
class=3D""><br =
class=3D""><blockquote type=3D"cite"
class=3D""><div class=3D""><span =
class=3D""><div dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid =
rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"
class=3D""><div =
class=3D"gmail_extra"><div class=3D"gmail_quote"><span =
class=3D""><blockquote class=3D"gmail_quote"
style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"ltr" class=3D""><div
class=3D"gmail_extra"><div =
class=3D"gmail_quote"><span class=3D""><div
class=3D""><br =
class=3D""></div></span><div class=3D"">Simone,
reusing the connection =
is good idea anyway, but what you describe is </div><div
class=3D"">a=
bug in the client library. The library does *not* need to load and =
parse the</div><div class=3D"">schema at all for sending requests to
=
vdsm.</div><div class=3D""><br
class=3D""></div><div class=3D"">The =
schema is only needed if you want to verify request =
parameters,</div><div class=3D"">or provide online help, these are
not =
needed in a client library.</div><div class=3D""><br
class=3D""></div><div=
class=3D"">Please file an infra bug about =
it.</div></div></div></div></blockquote><div
class=3D""><br =
class=3D""></div></span><div class=3D"">Done,
<a =
href=3D"https://bugzilla.redhat.com/show_bug.cgi?id=3D1381899" =
target=3D"_blank" class=3D"">https://bugzilla.redhat.com/sh<wbr
=
class=3D"">ow_bug.cgi?id=3D1381899</a></div></div></div></div></blockquote=
<div class=3D""><br
class=3D""></div><div class=3D"">Here is a patch =
that should eliminate most most of the problem:</div><div
class=3D""><a =
href=3D"https://gerrit.ovirt.org/65230" target=3D"_blank" =
class=3D"">https://gerrit.ovirt.org/65230</a><br
class=3D""></div><div =
class=3D""><br class=3D""></div><div
class=3D"">Would be nice if it can =
be tested on the system showing this problem.</div><div
class=3D""><br =
class=3D""></div><div
class=3D"">Cheers,</div><div =
class=3D"">Nir</div></div></div></div></span><span
class=3D"">
______________________________<wbr class=3D"">_________________<br =
class=3D"">Users mailing list<br class=3D""><a =
href=3D"mailto:Users@ovirt.org" target=3D"_blank" =
class=3D"">Users(a)ovirt.org</a><br class=3D""><a =
href=3D"http://lists.ovirt.org/mailman/listinfo/users"
target=3D"_blank" =
class=3D"">http://lists.ovirt.org/mailman<wbr =
class=3D"">/listinfo/users</a><br =
class=3D""></span></div></blockquote></div><br =
class=3D""></div></blockquote></div><br
class=3D""></div></div>
______________________________<wbr class=3D"">_________________<br =
class=3D"">Users mailing list<br class=3D""><a =
href=3D"mailto:Users@ovirt.org" target=3D"_blank" =
class=3D"">Users(a)ovirt.org</a><br class=3D""><a =
href=3D"http://lists.ovirt.org/mailman/listinfo/users"
target=3D"_blank" =
class=3D"">http://lists.ovirt.org/<wbr =
class=3D"">mailman/listinfo/users</a><br =
class=3D""></div></blockquote></div><br
class=3D""></span></div><br =
class=3D"">______________________________<wbr =
class=3D"">_________________<br class=3D"">
Users mailing list<br class=3D"">
<a href=3D"mailto:Users@ovirt.org"
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">
<a href=3D"http://lists.ovirt.org/mailman/listinfo/users" =
rel=3D"noreferrer" target=3D"_blank" =
class=3D"">http://lists.ovirt.org/<wbr =
class=3D"">mailman/listinfo/users</a><br class=3D"">
<br class=3D""></blockquote></div><br
class=3D""></div></div>
_______________________________________________<br class=3D"">Users =
mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org"
=
class=3D"">Users(a)ovirt.org</a><br =
class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br =
class=3D""></div></blockquote></div><br
class=3D""></body></html>=
--Apple-Mail=_B5E3106A-94F6-40B0-A9A6-4DD310F17BA3--
5:10 p.m.
On Fri, Oct 7, 2016 at 4:02 PM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
On 7 Oct 2016, at 15:28, Simone Tiraboschi <stirabos(a)redhat.com> wrote:
On Fri, Oct 7, 2016 at 3:25 PM, Michal Skrivanek <
michal.skrivanek(a)redhat.com> wrote:
>
> On 7 Oct 2016, at 14:59, Nir Soffer <nsoffer(a)redhat.com> wrote:
>
> On Fri, Oct 7, 2016 at 3:52 PM, Michal Skrivanek <
> michal.skrivanek(a)redhat.com> wrote:
>
>>
>> On 7 Oct 2016, at 14:42, Nir Soffer <nsoffer(a)redhat.com> wrote:
>>
>> On Wed, Oct 5, 2016 at 1:33 PM, Simone Tiraboschi <stirabos(a)redhat.com>
>> wrote:
>>
>>>
>>>
>>> On Wed, Oct 5, 2016 at 10:34 AM, Nir Soffer <nsoffer(a)redhat.com>
wrote:
>>>
>>>> On Wed, Oct 5, 2016 at 10:24 AM, Simone Tiraboschi <
>>>> stirabos(a)redhat.com> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Wed, Oct 5, 2016 at 9:17 AM, gregor
<gregor_forum(a)catrix.at>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> did you found a solution or cause for this high CPU usage?
>>>>>> I have installed the self hosted engine on another server and
there
>>>>>> is
>>>>>> no VM running but ovirt-ha-agent uses heavily the CPU.
>>>>>>
>>>>>
>>>>> Yes, it's due to the fact that ovirt-ha-agent periodically
reconnects
>>>>> over json rpc and this is CPU intensive since the client has to parse
the
>>>>> yaml API specification each time it connects.
>>>>>
>>>>
>> wasn’t it suppose to be fixed to reuse the connection? Like all the
>> other clients (vdsm migration code:-)
>>
>
> This is orthogonal issue.
>
>
> Yes it is. And that’s the issue;-)
> Both are wrong, but by “fixing” the schema validation only you lose the
> motivation to fix the meaningless wasteful reconnect
>
Yes, we are going to fix that too ( https://bugzilla.redhat.com/
show_bug.cgi?id=1349829 )
that’s great! Also al the other vdsClient uses?:-)
https://gerrit.ovirt.org/#/c/62729/
What is that periodic one call anyway? Is there only one? Maybe we
don’t
need it so much.
Currently ovirt-ha-agent is periodically reconnecting the hosted-engine
storage domain and checking its status. This is already on jsonrpc.
In 4.1 all the monitoring will be moved to jsonrpc.
but it would require also https://bugzilla.redhat.com/
show_bug.cgi?id=1376843 to be fixed.
This is less good. Well, worst case you can reconnect yourself, all you
need is a notification when the existing connection breaks
>
>
>
>> Does schema validation matter then if there would be only one connection
>> at the start up?
>>
>
> Loading once does not help command line tools like vdsClient,
> hosted-engine and
> vdsm-tool.
>
>
> none of the other tools is using json-rpc.
>
hosted-engine-setup is, and sooner or later we'll have to migrate also the
remaining tools since xmlrpc has been deprecated with 4.0
ok. though setup is a one-time action so it’s not an issue there
>
>
> Nir
>
>
>>
>>
>>>> Simone, reusing the connection is good idea anyway, but what you
>>>> describe is
>>>> a bug in the client library. The library does *not* need to load and
>>>> parse the
>>>> schema at all for sending requests to vdsm.
>>>>
>>>> The schema is only needed if you want to verify request parameters,
>>>> or provide online help, these are not needed in a client library.
>>>>
>>>> Please file an infra bug about it.
>>>>
>>>
>>> Done, https://bugzilla.redhat.com/show_bug.cgi?id=1381899
>>>
>>
>> Here is a patch that should eliminate most most of the problem:
>> https://gerrit.ovirt.org/65230
>>
>> Would be nice if it can be tested on the system showing this problem.
>>
>> Cheers,
>> Nir
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
6:16 p.m.
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29 comments
8 participants
participants (8)
-
Gianluca Cecchi -
gregor -
Michal Skrivanek -
Michal Skrivanek -
Nir Soffer -
Roy Golan -
Sam Cappello -
Simone Tiraboschi