[Users] Nodes lose storage at random

Tue Feb 18 12:55:11 UTC 2014

To follow up on this: The setup has only ~80 VM's active right now. The 2
bugreports are not in scope for this setup, the issues occur at random,
even when there's no activity (create/delete VM's) and there are only 4
directories in /rhev/data-center/mnt/.

On Tue, Feb 18, 2014 at 1:51 PM, Johan Kooijman <mail at johankooijman.com>wrote:

> Meital,
>
> I'm running the latest stable oVirt, 3.3.3 on Centos 6.5. For my nodes I
> use the node iso CentOS 6 "oVirt Node - 3.0.1 - 1.0.2.el6".
>
> I have no ways of reproducing just yet. I can confirm that it's happening
> on all nodes in the cluster. And every time a node goes offline, this error
> pops up.
>
> Could the fact that lockd & statd were not running on the NFS host cause
> this error? Is there a workaround available that we know of?
>
>
> On Tue, Feb 18, 2014 at 12:57 PM, Meital Bourvine <mbourvin at redhat.com>wrote:
>
>> Hi Johan,
>>
>> Please take a look at this error (from vdsm.log):
>>
>> Thread-636938::DEBUG::2014-02-18 10:48:06,374::task::579::TaskManager.Task::(_updateState) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::moving from state init -> state preparing
>> Thread-636938::INFO::2014-02-18 10:48:06,375::logUtils::44::dispatcher::(wrapper) Run and protect: getVolumeSize(sdUUID='e9f70496-f181-4c9b-9ecb-d7f780772b04', spUUID='59980e09-b329-4254-b66e-790abd69e194', imgUUID='d50ecfbb-dc98-40cf-9b19-4bd402952aeb', volUUID='68fefe24-0346-4d0d-b377-ddd7be7be29c', options=None)
>> Thread-636938::ERROR::2014-02-18 10:48:06,376::task::850::TaskManager.Task::(_setError) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::Unexpected error
>> Thread-636938::DEBUG::2014-02-18 10:48:06,415::task::869::TaskManager.Task::(_run) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::Task._run: f4ce9a6e-0292-4071-9a24-a8d8fba7222b ('e9f70496-f181-4c9b-9ecb-d7f780772b04', '59980e09-b329-4254-b66e-790abd69e194', 'd50ecfbb-dc98-40cf-9b19-4bd402952aeb', '68fefe24-0346-4d0d-b377-ddd7be7be29c') {} failed - stopping task
>> Thread-636938::DEBUG::2014-02-18 10:48:06,416::task::1194::TaskManager.Task::(stop) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::stopping in state preparing (force False)
>> Thread-636938::DEBUG::2014-02-18 10:48:06,416::task::974::TaskManager.Task::(_decref) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::ref 1 aborting True
>> Thread-636938::INFO::2014-02-18 10:48:06,416::task::1151::TaskManager.Task::(prepare) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::aborting: Task is aborted: u'No free file handlers in pool' - code 100
>> Thread-636938::DEBUG::2014-02-18 10:48:06,417::task::1156::TaskManager.Task::(prepare) Task=`f4ce9a6e-0292-4071-9a24-a8d8fba7222b`::Prepare: aborted: No free file handlers in pool
>>
>>
>>
>> And then you can see after a few seconds:
>>
>> MainThread::INFO::2014-02-18 10:48:45,258::vdsm::101::vds::(run) (PID: 1450) I am the actual vdsm 4.12.1-2.el6 hv5.ovirt.gs.cloud.lan (2.6.32-358.18.1.el6.x86_64)
>>
>>
>> Meaning that vdsm was restarted.
>>
>> Which oVirt version are you using?
>> I see that there are a few old bugs that describes the same behaviour, but with different reproduction steps, for example [1], [2].
>>
>> Can you think of any reproduction steps that might be causing this issue?
>>
>>
>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=948210
>>
>> [2] https://bugzilla.redhat.com/show_bug.cgi?id=853011
>>
>>
>>
>> ------------------------------
>>
>> *From: *"Johan Kooijman" <mail at johankooijman.com>
>> *To: *"users" <users at ovirt.org>
>> *Sent: *Tuesday, February 18, 2014 1:32:56 PM
>> *Subject: *[Users] Nodes lose storage at random
>>
>>
>> Hi All,
>>
>> We're seeing some weird issues in our ovirt setup. We have 4 nodes
>> connected and an NFS (v3) filestore (FreeBSD/ZFS).
>>
>> Once in a while, it seems at random, a node loses their connection to
>> storage, recovers it a minute later. The other nodes usually don't lose
>> their storage at that moment. Just one, or two at a time.
>>
>> We've setup extra tooling to verify the storage performance at those
>> moments and the availability for other systems. It's always online, just
>> the nodes don't think so.
>>
>> The engine tells me this:
>>
>> 2014-02-18 11:48:03,598 WARN
>>  [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand]
>> (pool-6-thread-48) domain d88764c8-ecc3-4f22-967e-2ce225ac4498:Export in
>> problem. vds: hv5
>> 2014-02-18 11:48:18,909 WARN
>>  [org.ovirt.engine.core.vdsbroker.irsbroker.IrsBrokerCommand]
>> (pool-6-thread-48) domain e9f70496-f181-4c9b-9ecb-d7f780772b04:Data in
>> problem. vds: hv5
>> 2014-02-18 11:48:45,021 WARN
>>  [org.ovirt.engine.core.vdsbroker.VdsManager]
>> (DefaultQuartzScheduler_Worker-18) [46683672] Failed to refresh VDS , vds =
>> 66e6aace-e51d-4006-bb2f-d85c2f1fd8d2 : hv5, VDS Network Error, continuing.
>> 2014-02-18 11:48:45,070 INFO
>>  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
>> (DefaultQuartzScheduler_Worker-41) [2ef1a894] Correlation ID: 2ef1a894,
>> Call Stack: null, Custom Event ID: -1, Message: Invalid status on Data
>> Center GS. Setting Data Center status to Non Responsive (On host hv5,
>> Error: Network error during communication with the Host.).
>>
>> The export and data domain live over NFS. There's another domain, ISO,
>> that lives on the engine machine, also shared over NFS. That domain doesn't
>> have any issue at all.
>>
>>  Attached are the logfiles for the relevant time period for both the
>> engine server and the node. The node by the way, is a deployment of the
>> node ISO, not a full blown installation.
>>
>> Any clues on where to begin searching? The NFS server shows no issues nor
>> anything in the logs. I did notice that the statd and lockd daemons were
>> not running, but I wonder if that can have anything to do with the issue.
>>
>> --
>> Met vriendelijke groeten / With kind regards,
>> Johan Kooijman
>>
>> mail at johankooijman.com
>>
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>>
>
>
> --
> Met vriendelijke groeten / With kind regards,
> Johan Kooijman
>
> T +31(0) 6 43 44 45 27
> F +31(0) 162 82 00 01
> E mail at johankooijman.com
>

-- 
Met vriendelijke groeten / With kind regards,
Johan Kooijman

T +31(0) 6 43 44 45 27
F +31(0) 162 82 00 01
E mail at johankooijman.com
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