June 2017 - Users - oVirt List Archives

Host name already in use in oVirt Engine
by FERNANDO FREDIANI 13 Jun '17

13 Jun '17

This is a multi-part message in MIME format. --------------3A9AA83C242C9D0BB163DB52 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hello. I had a previous Datacenter and Cluster with a Host in it which I have removed completelly from oVirt Engine. In order to remove I did the following steps: - Removed all Virtual Machines on the top of the Host - Put the only Local Datastore in Maintenence mode (It didn't allow to remove it for some reason. Said I had to remove the Datacenter instead) - As the Datastore couldn't be remove so the Host. I then removed the Datacenter and it removed everything. Then I created a new Cluster and tried to add the same Host with the same hostname in it and I am getting the message: "Cannot add Host. The Host name is already in use, please choose a unique name and try again." It seems that something was left lost in the Database which still beleives that host exists in oVirt Engine. How can I clean that up and add it again as I am not willing to change its name. Thanks Fernand --------------3A9AA83C242C9D0BB163DB52 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hello. I had a previous Datacenter and Cluster with a Host in it which I have removed completelly from oVirt Engine. In order to remove I did the following steps: - Removed all Virtual Machines on the top of the Host - Put the only Local Datastore in Maintenence mode (It didn't allow to remove it for some reason. Said I had to remove the Datacenter instead) - As the Datastore couldn't be remove so the Host. I then removed the Datacenter and it removed everything. Then I created a new Cluster and tried to add the same Host with the same hostname in it and I am getting the message: "Cannot add Host. The Host name is already in use, please choose a unique name and try again." It seems that something was left lost in the Database which still beleives that host exists in oVirt Engine. How can I clean that up and add it again as I am not willing to change its name. Thanks Fernand </body> </html> --------------3A9AA83C242C9D0BB163DB52--

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SPM in case of Failure
by Arsène Gschwind 13 Jun '17

13 Jun '17

This is a multi-part message in MIME format. --------------2697A26DEF0A6FEBE4ECD7F9 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hi Our setup looks like: - 2 clusters in 2 different site connected with 10GBit LAN - Storage based on FC SAN replicated on both site and available for both site (The LUNs are available over 4 pathes, 2 from each site) My observation: In case one site goes down and this site owned SPM is it not possible to move or force SPM on the second site. On the site which is down it's possible to reset all VMs that crashed using the "Confirm Host rebooted" menu on the oVirt Host but this does not reset SPM. The only solution I found was to bring the Host which owned SPM up again to be able to move it to the other site and then reactivate the storage domains. Is this a normal behavior? Is there any way to force SPM reelection ? Thanks for your help or idea... Regards, Arsène -- *Arsène Gschwind* Fa. Sapify AG im Auftrag der Universität Basel IT Services Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 79 449 25 63 | http://its.unibas.ch <http://its.unibas.ch/> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 --------------2697A26DEF0A6FEBE4ECD7F9 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi Our setup looks like: - 2 clusters in 2 different site connected with 10GBit LAN - Storage based on FC SAN replicated on both site and available for both site (The LUNs are available over 4 pathes, 2 from each site) My observation: In case one site goes down and this site owned SPM is it not possible to move or force SPM on the second site. On the site which is down it's possible to reset all VMs that crashed using the "Confirm Host rebooted" menu on the oVirt Host but this does not reset SPM. The only solution I found was to bring the Host which owned SPM up again to be able to move it to the other site and then reactivate the storage domains. Is this a normal behavior? Is there any way to force SPM reelection ? Thanks for your help or idea... Regards, Arsène <div class="moz-signature">-- Arsène Gschwind Fa. Sapify AG im Auftrag der Universität Basel IT Services Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 79 449 25 63 | <a href="http://its.unibas.ch/"> http://its.unibas.ch </a> ITS-ServiceDesk: <a class="moz-txt-link-abbreviated" href="mailto:support-its@unibas.ch">support-its(a)unibas.ch</a> | +41 61 267 14 11 </div> </body> </html> --------------2697A26DEF0A6FEBE4ECD7F9--

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Python-SDK4: Managing accents?
by nicolas＠devels.es 13 Jun '17

13 Jun '17

Hi, We're running Python SDK (ovirt-engine-sdk-python) ver 4.1.4 and we're having some issues getting values that contain accents. For example, this snippet fails: import ovirtsdk4 as sdk import ovirtsdk4.types as types # Create the connection to the server: connection = sdk.Connection( url='https://fqdn/ovirt-engine/api', username='...', password='...', ca_file='...', debug=True, ) users_service = connection.system_service().users_service() users = users_service.list() connection.close() This snippet fails in the "users = users_service.list()" line, because one of the records have a tilde (ó). The trace is: Traceback (most recent call last): File "lista_users", line 23, in <module> users = users_service.list() File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/services.py", line 22155, in list return self._internal_get(headers, query, wait) File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/service.py", line 202, in _internal_get return future.wait() if wait else future File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/service.py", line 53, in wait return self._code(response) File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/service.py", line 197, in callback return self._internal_read_body(response) File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/service.py", line 310, in _internal_read_body return reader.Reader.read(response.body) File "/home/ovirt/prueba/ejemplo2/lib/python2.7/site-packages/ovirtsdk4/reader.py", line 297, in read cursor = xml.XmlReader(io.BytesIO(source.encode('utf-8'))) UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 1899: ordinal not in range(128) Opening the source code (ovirtsdk4/reader.py) file and seeking the exact line that fails I can see: if isinstance(source, str): cursor = xml.XmlReader(io.BytesIO(source.encode('utf-8'))) If I add a line just after the 'if' being "cursor = cursor.decode('utf-8')", it seems to work, but I guess the source code should handle this kind of situations. Is this a known issue? Should I open a BZ? Any workaround meanwhile? Thanks.

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Question about Clusters and Storage usage
by FERNANDO FREDIANI 13 Jun '17

13 Jun '17

This is a multi-part message in MIME format. --------------AF09066F7B7B6BE6AE98327E Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hello folks. I have here a scenario where I have one Datacenter and inside it I have one Cluster which has multiple hosts with Shared storage between them. Now I am willing to add another standalone host with Local Storage only and logic tells me to add to the same Datacenter created as they are in fact in the same physical Datacenter, but as this host has only Local Storage I shouldn't obviously add to the existing cluster. Question is: As the Datacenter was created with Storage type Shared - Should I create a new Cluster and add it to it, even though the new Host has only Local Storage - Or should I create another Datacenter with Storage Type Local, a cluster within it and then add the Host there ? Thanks Fernando --------------AF09066F7B7B6BE6AE98327E Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hello folks. I have here a scenario where I have one Datacenter and inside it I have one Cluster which has multiple hosts with Shared storage between them. Now I am willing to add another standalone host with Local Storage only and logic tells me to add to the same Datacenter created as they are in fact in the same physical Datacenter, but as this host has only Local Storage I shouldn't obviously add to the existing cluster. Question is: As the Datacenter was created with Storage type Shared - Should I create a new Cluster and add it to it, even though the new Host has only Local Storage - Or should I create another Datacenter with Storage Type Local, a cluster within it and then add the Host there ? Thanks Fernando </body> </html> --------------AF09066F7B7B6BE6AE98327E--

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Re: [ovirt-users] Migrating oVirt cluster from 4.0 to 4.1
by Karli Sjöberg 12 Jun '17

12 Jun '17

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Re: [ovirt-users] hosted-engine network
by Arsène Gschwind 12 Jun '17

12 Jun '17

Hi, Sorry for this, it seems that the attachment have been detached. So let's try again Regards, Arsène On 06/12/2017 11:59 AM, Martin Sivak wrote: > Hi, > > I would love to help you, but I didn't get the log file.. > > Regards > > Martin Sivak > > On Mon, Jun 12, 2017 at 11:49 AM, Arsène Gschwind > <arsene.gschwind(a)unibas.ch> wrote: >> Hi all, >> >> Any chance to get help or a hint to solve my Problem, I have no idea how to >> change this configuration since it is not possible using the WebUI. >> >> Thanks a lot. >> >> Regards, >> Arsène >> >> >> On 06/07/2017 11:50 AM, Arsène Gschwind wrote: >> >> Hi all, >> >> Please find attached the agent.log DEBUG and a screenshot from webui >> >> Thanks a lot >> >> Best regards, >> >> Arsène >> >> >> On 06/07/2017 11:27 AM, Martin Sivak wrote: >> >> Hi all, >> >> Yanir is right, the local vm.conf is just a cache of what was >> retrieved from the engine. >> >> I might be interesting to check what the configuration of the engine >> VM shows when edited using the webadmin. Or enable debug logging [1] >> for hosted engine and add the OVF dump we send there now and then (the >> xml representation of the VM). >> >> [1] See /etc/ovirt-hosted-engine-ha/agent-log.conf and change the >> level for root logger to DEBUG >> >> Best regards >> >> Martin Sivak >> >> On Wed, Jun 7, 2017 at 11:12 AM, Yanir Quinn <yquinn(a)redhat.com> wrote: >> >> If im not mistaken the values of vm.conf are repopulated from the database , >> but i wouldn't recommend meddling with DB data. >> maybe the network device wasn't set properly during the hosted engine setup >> ? >> >> On Wed, Jun 7, 2017 at 11:47 AM, Arsène Gschwind <arsene.gschwind(a)unibas.ch> >> wrote: >> >> Hi, >> >> Any chance to get a hint how to change the vm.conf file so it will not be >> overwritten constantly? >> >> Thanks a lot. >> >> Arsène >> >> >> On 06/06/2017 09:50 AM, Arsène Gschwind wrote: >> >> Hi, >> >> I've migrated our oVirt engine to hosted-engine located on a FC storage >> LUN, so far so good. >> For some reason I'm not able to start the hosted-engine VM, after digging >> in the log files i could figured out the reason. The Network device was set >> to "None" as follow: >> >> devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:None,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} >> >> I've created a new config file /var/run/ovirt-hosted-engine-ha/vm.conf.new >> and set the nic device to ovirtmgnt, the I could start the hosted-engine >> using : >> hosted-engine --vm-start >> --vm-conf=var/run/ovirt-hosted-engine-ha/vm.conf.new >> >> The nic device line in vm.conf.new looks like: >> >> devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:ovirtmgmt,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} >> >> I tried to find out a way to change this setting on vm.conf but it is >> constantly rewritten, even when using the webui is say's: >> HostedEngine: >> >> There was an attempt to change Hosted Engine VM values that are locked. >> >> Is there a way to modify/correct the hosted-engine vm.conf file so it will >> stay and not be overwritten? >> >> Thanks a lot for any hint/help >> >> rgds, >> arsène >> >> -- >> >> Arsène Gschwind >> Fa. Sapify AG im Auftrag der Universität Basel >> IT Services >> Klingelbergstr. 70 | CH-4056 Basel | Switzerland >> Tel. +41 79 449 25 63 | http://its.unibas.ch >> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 >> >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> >> -- >> >> Arsène Gschwind >> Fa. Sapify AG im Auftrag der Universität Basel >> IT Services >> Klingelbergstr. 70 | CH-4056 Basel | Switzerland >> Tel. +41 79 449 25 63 | http://its.unibas.ch >> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 >> >> >> _______________________________________________ >> 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 >> >> >> -- >> >> Arsène Gschwind >> Fa. Sapify AG im Auftrag der Universität Basel >> IT Services >> Klingelbergstr. 70 | CH-4056 Basel | Switzerland >> Tel. +41 79 449 25 63 | http://its.unibas.ch >> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 >> >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> >> -- >> >> Arsène Gschwind >> Fa. Sapify AG im Auftrag der Universität Basel >> IT Services >> Klingelbergstr. 70 | CH-4056 Basel | Switzerland >> Tel. +41 79 449 25 63 | http://its.unibas.ch >> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> -- *Arsène Gschwind* Fa. Sapify AG im Auftrag der Universität Basel IT Services Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 79 449 25 63 | http://its.unibas.ch <http://its.unibas.ch/> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11

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hosted-engine network
by Arsène Gschwind 12 Jun '17

12 Jun '17

This is a multi-part message in MIME format. --------------DDB6A5C853028C92A7A2BFFF Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Hi, I've migrated our oVirt engine to hosted-engine located on a FC storage LUN, so far so good. For some reason I'm not able to start the hosted-engine VM, after digging in the log files i could figured out the reason. The Network device was set to "None" as follow: devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:*None*,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} I've created a new config file /var/run/ovirt-hosted-engine-ha/vm.conf.new and set the nic device to ovirtmgnt, the I could start the hosted-engine using : hosted-engine --vm-start --vm-conf=var/run/ovirt-hosted-engine-ha/vm.conf.new The nic device line in vm.conf.new looks like: devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:*ovirtmgmt*,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} I tried to find out a way to change this setting on vm.conf but it is constantly rewritten, even when using the webui is say's: HostedEngine: * There was an attempt to change Hosted Engine VM values that are locked. Is there a way to modify/correct the hosted-engine vm.conf file so it will stay and not be overwritten? Thanks a lot for any hint/help rgds, arsène -- *Arsène Gschwind* Fa. Sapify AG im Auftrag der Universität Basel IT Services Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 79 449 25 63 | http://its.unibas.ch <http://its.unibas.ch/> ITS-ServiceDesk: support-its(a)unibas.ch | +41 61 267 14 11 --------------DDB6A5C853028C92A7A2BFFF Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi, I've migrated our oVirt engine to hosted-engine located on a FC storage LUN, so far so good. For some reason I'm not able to start the hosted-engine VM, after digging in the log files i could figured out the reason. The Network device was set to "None" as follow: devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:None,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} I've created a new config file /var/run/ovirt-hosted-engine-ha/vm.conf.new and set the nic device to ovirtmgnt, the I could start the hosted-engine using : hosted-engine --vm-start --vm-conf=var/run/ovirt-hosted-engine-ha/vm.conf.new The nic device line in vm.conf.new looks like: devices={nicModel:pv,macAddr:00:16:3e:3a:6b:60,linkActive:true,network:ovirtmgmt,deviceId:56cb4d71-13ff-42a8-bb83-7faef99fd3ea,address:{slot:0x03,bus:0x00,domain:0x0000,type:pci,function:0x0},device:bridge,type:interface} I tried to find out a way to change this setting on vm.conf but it is constantly rewritten, even when using the webui is say's: <span style="color: rgb(0, 0, 0); font-family: "Arial Unicode MS", Arial, sans-serif; font-size: small; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">HostedEngine: <ul style="box-sizing: border-box; margin-top: 0px; margin-bottom: 10px; color: rgb(0, 0, 0); font-family: "Arial Unicode MS", Arial, sans-serif; font-size: small; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> <li style="box-sizing: border-box;">There was an attempt to change Hosted Engine VM values that are locked.</li> </ul> Is there a way to modify/correct the hosted-engine vm.conf file so it will stay and not be overwritten? Thanks a lot for any hint/help rgds, arsène <div class="moz-signature">-- Arsène Gschwind Fa. Sapify AG im Auftrag der Universität Basel IT Services Klingelbergstr. 70 | CH-4056 Basel | Switzerland Tel. +41 79 449 25 63 | <a href="http://its.unibas.ch/"> http://its.unibas.ch </a> ITS-ServiceDesk: <a class="moz-txt-link-abbreviated" href="mailto:support-its@unibas.ch">support-its(a)unibas.ch</a> | +41 61 267 14 11 </div> </body> </html> --------------DDB6A5C853028C92A7A2BFFF--

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trouble when creating VM snapshots including memory
by Matthias Leopold 12 Jun '17

12 Jun '17

hi, i'm having trouble creating VM snapshots that include memory in my oVirt 4.1 test environment. when i do this the VM gets paused and shortly (20-30s) afterwards i'm seeing messages in engine.log about both iSCSI storage domains (master storage domain and data storage where VM resides) experiencing high latency. this quickly worsens from the engines view: VM is unresponsive, Host is unresponsive, engine wants to fence the host (impossible because it's the only host in the test cluster). in the end there is an EngineException EngineException: org.ovirt.engine.core.vdsbroker.vdsbroker.VDSNetworkException: VDSGenericException: VDSNetworkException: Message timeout which can be caused by communication issues (Failed with error VDS_NETWORK_ERROR and code 5022) the snapshot fails and is left in an inconsistent state. the situation has to be resolved manually with unlock_entity.sh and maybe lvm commands. this happened twice in exactly the same manner. VM snapshots without memory for this VM are not a problem. VM guest OS is CentOS7 installed from one of the ovirt-image-repository images. it has the oVirt guest agent running. what could be wrong? this is a test environment where lots of parameters aren't optimal but i never had problems like this before, nothing concerning network latency. iSCSI is on a FreeNAS box. CPU, RAM, ethernet (10GBit for storage) on all hosts involved (engine hosted externally, oVirt Node, storage) should be OK by far. it looks like some obvious configuration botch or performance bottleneck to me. can it be linked to the network roles (management and migration network are on a 1 GBit link)? i'm still new to this, not a lot of KVM experience, too. maybe someone recognizes the culprit... thx matthias

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Re: [ovirt-users] trouble when creating VM snapshots including memory
by Karli Sjöberg 12 Jun '17

12 Jun '17

2 1

Re-adding oVirt host.
by Marcin M. Jessa 12 Jun '17

12 Jun '17

Hi guys. I have a two node setup. One server running on CentOS [1] and one server with oVirt node [2]. I added local storage to my oVirt host but I forgot the storage I chose was already in use so it failed. I then got a host entry with local storage which was shown as not configured. I then removed that local storage host but then it completely disappeared from my setup. Then I tried to add it again but oVirt said that host is already defined. I tried different name with the same IP but it also failed saying that that IP is already defined. Is there a way to re-add that previously defined host? How can I bring it back? [1]: oVirt Engine Version: 4.1.2.2-1.el7.centos [2]: oVirt Node 4.1.2 Marcin Jessa.

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