[ovirt-users] ovirt 3.6 and self hosted engine: clarification on datacenter input

Gianluca Cecchi gianluca.cecchi at gmail.com
Wed Oct 28 10:12:07 EDT 2015 

On Tue, Oct 27, 2015 at 5:06 PM, Simone Tiraboschi <stirabos at redhat.com>
wrote:

>
>
>> I don't understand the meaning of the sentence above:
>>
>>           Local storage datacenter name is an internal name
>>           and currently will not be shown in engine's admin UI.
>>
>>
> It's just an internal label. I think we can just remove that question
> always using the default value and nothing will change.
>

Probably better.


>
>
>>
>> How is the chosen "she_datacenter" name related with the "Default"
>> datacenter where the hypervisor is put in? Do I have to manually create it
>> (I don't see this se_datacenter in webadmin portal)?
>>
>> Also, I know there is open bug
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1269768
>>
>> But it seems I'm not able to to import the storage domain...
>> In events, when I import, I have the sequence
>>
>> Storage Domain she_sdomain was added by admin at internal
>> VDSM ovc71.localdomain.local command failed: Cannot acquire host id:
>> (u'9f1ec45d-0c32-4bfc-8b67-372d6f204fd1', SanlockException(22, 'Sanlock
>> lockspace add failure', 'Invalid argument'))
>> Failed to attach Storage Domains to Data Center Default. (User:
>> admin at internal)
>> Failed to attach Storage Domain she_sdomain to Data Center Default.
>> (User: admin at internal)
>>
>> What should be the flow to compensate the bug? Do I have actually to
>> attache it to "Default" datacenter or what? Is it expected to be fixed
>> before 3.6?
>>
>
> Postponing to 3.6.1 not being identified as a blocker.
>

But is this a regression from 3.5.x or did this problem exist also in all
the 3.5 versions where sh engine was in place?


>
> You can try to add the first additional storage domain for other VMs.
> The datacenter should came up and at that point you try importing the
> hosted-engine storage domain.
> You cannot add other VMs to that storage domain neither you'll can when
> the auto-import will work.
>
>
>>
>>
So I was indeed able to add a separate data NFS domain and able to attach
it to the default DC that came then up as an active one.
Then tried to import/attach also the sh engine domain; it went in locked
state but then the sh engine VM itself went down (no qemu process on
hypervisor).
In /var/log/libvirt/qemu/HostedEngine.log of hypervisor I can see

2015-10-28 13:59:02.233+0000: shutting down

expected?

what now to have the sh engine come up again and see what happened?
Any logs on hypevisor to check?

In /var/log/sanlock.log
2015-10-28 14:57:14+0100 854 [829]: s4 lockspace
3662a51f-39de-4533-97fe-d49bf98e2d43:1:/rhev/data-center/mnt/ovc71.localdomain.local:_NFS__DOMAIN/3662a51f-39de-4533-97fe-d49bf98e2d43/dom_md/ids:0
2015-10-28 14:57:34+0100 874 [829]: s4:r3 resource
3662a51f-39de-4533-97fe-d49bf98e2d43:SDM:/rhev/data-center/mnt/ovc71.localdomain.local:_NFS__DOMAIN/3662a51f-39de-4533-97fe-d49bf98e2d43/dom_md/leases:1048576
for 4,17,1698
2015-10-28 14:57:35+0100 875 [825]: s4 host 1 1 854
1bfba2b1-2353-4d4e-9000-f97585b54df1.ovc71.loca
2015-10-28 14:57:35+0100 875 [825]: s4 host 250 1 0
1bfba2b1-2353-4d4e-9000-f97585b54df1.ovc71.loca
2015-10-28 14:59:00+0100 960 [830]: s1:r4 resource
9f1ec45d-0c32-4bfc-8b67-372d6f204fd1:SDM:/rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN/9f1ec45d-0c32-4bfc-8b67-372d6f204fd1/dom_md/leases:1048576
for 4,17,1698
2015-10-28 14:59:02+0100 962 [825]: s1 kill 3341 sig 9 count 1
2015-10-28 14:59:02+0100 962 [825]: dead 3341 ci 2 count 1
2015-10-28 14:59:08+0100 968 [830]: s5 lockspace
9f1ec45d-0c32-4bfc-8b67-372d6f204fd1:1:/rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN/9f1ec45d-0c32-4bfc-8b67-372d6f204fd1/dom_md/ids:0
2015-10-28 14:59:30+0100 990 [825]: s5 host 1 4 968
1bfba2b1-2353-4d4e-9000-f97585b54df1.ovc71.loca
2015-10-28 14:59:30+0100 990 [825]: s5 host 250 1 0
aa89bb89-20a1-414b-8ee3-0430fdc330f8.ovc71.loca



/var/log/vdsm/vdsm.log
Thread-1247::DEBUG::2015-10-28
14:59:00,043::task::993::Storage.TaskManager.Task::(_decref) Task=`56
dd2372-f454-4188-8bf3-ab543d677c14`::ref 0 aborting False
Thread-1247::ERROR::2015-10-28 14:59:00,096::API::1847::vds::(_getHaInfo)
failed to retrieve Hosted Engine HA info
Traceback (most recent call last):
  File "/usr/share/vdsm/API.py", line 1827, in _getHaInfo
    stats = instance.get_all_stats()
  File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 103, in get_all_stats
    self._configure_broker_conn(broker)
  File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
line 180, in _configure_broker_conn
    dom_type=dom_type)
  File
"/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
line 176, in set_storage_domain
    .format(sd_type, options, e))
RequestError: Failed to set storage domain FilesystemBackend, options
{'dom_type': 'nfs3', 'sd_uuid': '9f1ec45d-0c32-4bfc-8b67-372d6f204fd1'}:
Request failed: <class
'ovirt_hosted_engine_ha.lib.storage_backends.BackendFailureException'>
Thread-1247::INFO::2015-10-28
14:59:00,112::xmlrpc::92::vds.XMLRPCServer::(_process_requests) Reques
t handler for 127.0.0.1:42165 stopped
Thread-1248::DEBUG::2015-10-28
14:59:00,137::__init__::503::jsonrpc.JsonRpcServer::(_serveRequest) Calling
'StoragePool.connectStorageServer' in bridge with {u'connectionParams':
[{u'id': u'189c29a5-6830-453c-aca3-7d82f2382dd8', u'connection':
u'ovc71.localdomain.local:/SHE_DOMAIN', u'iqn': u'', u'user': u'',
u'protocol_version': u'3', u'tpgt': u'1', u'password': '********', u'port':
u''}], u'storagepoolID': u'00000000-0000-0000-0000-000000000000',
u'domainType': 1}
Thread-1248::DEBUG::2015-10-28
14:59:00,138::task::595::Storage.TaskManager.Task::(_updateState)
Task=`9ca908a0-45e2-41d5-802c-dc0bd2414a69`::moving from state init ->
state preparing
Thread-1248::INFO::2015-10-28
14:59:00,139::logUtils::48::dispatcher::(wrapper) Run and protect:
connectStorageServer(domType=1,
spUUID=u'00000000-0000-0000-0000-000000000000', conList=[{u'id':
u'189c29a5-6830-453c-aca3-7d82f2382dd8', u'connection':
u'ovc71.localdomain.local:/SHE_DOMAIN', u'iqn': u'', u'user': u'',
u'protocol_version': u'3', u'tpgt': u'1', u'password': '********', u'port':
u''}], options=None)
Thread-1248::DEBUG::2015-10-28
14:59:00,142::fileUtils::143::Storage.fileUtils::(createdir) Creating
directory: /rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN mode:
None
Thread-1248::DEBUG::2015-10-28
14:59:00,143::mount::229::Storage.Misc.excCmd::(_runcmd) /usr/bin/sudo -n
/usr/bin/mount -t nfs -o soft,nosharecache,timeo=600,retrans=6,nfsvers=3
ovc71.localdomain.local:/SHE_DOMAIN
/rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN (cwd None)
Thread-1248::DEBUG::2015-10-28
14:59:00,199::hsm::2405::Storage.HSM::(__prefetchDomains) nfs local path:
/rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN
Thread-1248::DEBUG::2015-10-28
14:59:00,201::hsm::2429::Storage.HSM::(__prefetchDomains) Found SD uuids:
(u'9f1ec45d-0c32-4bfc-8b67-372d6f204fd1',)
Thread-1248::DEBUG::2015-10-28
14:59:00,202::hsm::2489::Storage.HSM::(connectStorageServer) knownSDs
: {9f1ec45d-0c32-4bfc-8b67-372d6f204fd1: storage.nfsSD.findDomain,
3662a51f-39de-4533-97fe-d49bf98e2d43: storage.nfsSD.findDomain}
Thread-1248::INFO::2015-10-28
14:59:00,202::logUtils::51::dispatcher::(wrapper) Run and protect:
connectStorageServer, Return response: {'statuslist': [{'status': 0, 'id':
u'189c29a5-6830-453c-aca3-7d82f2382dd8'}]}
Thread-1248::DEBUG::2015-10-28
14:59:00,202::task::1191::Storage.TaskManager.Task::(prepare)
Task=`9ca908a0-45e2-41d5-802c-dc0bd2414a69`::finished: {'statuslist':
[{'status': 0, 'id': u'189c29a5-6830-453c-aca3-7d82f2382dd8'}]}
Thread-1248::DEBUG::2015-10-28
14:59:00,202::task::595::Storage.TaskManager.Task::(_updateState)
Task=`9ca908a0-45e2-41d5-802c-dc0bd2414a69`::moving from state preparing ->
state finished
Thread-1248::DEBUG::2015-10-28
14:59:00,203::resourceManager::940::Storage.ResourceManager.Owner::(releaseAll)
Owner.releaseAll requests {} resources {}
Thread-1248::DEBUG::2015-10-28
14:59:00,203::resourceManager::977::Storage.ResourceManager.Owner::(cancelAll)
Owner.cancelAll requests {}
Thread-1248::DEBUG::2015-10-28
14:59:00,203::task::993::Storage.TaskManager.Task::(_decref)
Task=`9ca908a0-45e2-41d5-802c-dc0bd2414a69`::ref 0 aborting False
Thread-1248::DEBUG::2015-10-28
14:59:00,203::__init__::533::jsonrpc.JsonRpcServer::(_serveRequest) Return
'StoragePool.connectStorageServer' in bridge with [{'status': 0, 'id':
u'189c29a5-6830-453c-aca3-7d82f2382dd8'}]
Thread-1249::DEBUG::2015-10-28
14:59:00,218::__init__::503::jsonrpc.JsonRpcServer::(_serveRequest) Calling
'StorageDomain.getInfo' in bridge with {u'storagedomainID':
u'9f1ec45d-0c32-4bfc-8b67-372d6f204fd1'}

Current filesystem layout on hypervisor, but still withou any qemu process
for the hosted engine:
[root at ovc71 log]# df -h
Filesystem                           Size  Used Avail Use% Mounted on
/dev/mapper/centos-root               27G  2.6G   24G  10% /
devtmpfs                             4.9G     0  4.9G   0% /dev
tmpfs                                4.9G  4.0K  4.9G   1% /dev/shm
tmpfs                                4.9G  8.6M  4.9G   1% /run
tmpfs                                4.9G     0  4.9G   0% /sys/fs/cgroup
/dev/mapper/OVIRT_DOMAIN-NFS_DOMAIN   20G   36M   20G   1% /NFS_DOMAIN
/dev/mapper/OVIRT_DOMAIN-SHE_DOMAIN   25G  2.9G   23G  12% /SHE_DOMAIN
/dev/mapper/OVIRT_DOMAIN-ISO_DOMAIN  5.0G   33M  5.0G   1% /ISO_DOMAIN
/dev/sda1                            497M  130M  368M  27% /boot
ovc71.localdomain.local:/NFS_DOMAIN   20G   35M   20G   1%
/rhev/data-center/mnt/ovc71.localdomain.local:_NFS__DOMAIN
ovc71.localdomain.local:/SHE_DOMAIN   25G  2.9G   23G  12%
/rhev/data-center/mnt/ovc71.localdomain.local:_SHE__DOMAIN
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