[DRBD-user] [proxmox 5.4]Cannot create VM, cannot restore : timeout linstor sp l...

Christophe NOUVEL christophe.nouvel at gmail.com
Wed Feb 5 12:45:03 CET 2020

We only have 2 nodes as of today.

It is not easy to explain why vm creation fails, given that we cannot see
any error from Linstor / DRBD logs...

We removed 5 old error reports and linstor sp l, and linstor err l still
needs 20seconds or so.

May be it's time to rebuild from scratch now.

Thank you very much for your help,


Le mer. 5 févr. 2020 à 11:53, Gábor Hernádi <gabor.hernadi at linbit.com> a
écrit :

> Hello,
> in the logs you can see that `lvs` needs ~150ms, `vgs` ~15-20ms,
> `lvcreate` ~200ms, `drbdadm ... --create-md` about 3 seconds (that is
> fine)... so no external command executed by linstor is exceptionally slow..
> however, the reason that a `linstor err show` takes 20 seconds does not
> sound good. processing that command basically sends a request to the
> controller, the controller forwards the request to the specific satellite,
> that satellite reads the content of the specific error report and sends it
> back to the controller and thus to the client.
> To be honest, there is only one cause that comes to my mind that could
> explain this waiting time, namely if you have a huge amount of error
> reports.
> If you have, you should maybe cleanup old error reports (moving them away
> from the usual directory should be enough)
> regarding the last line of the log file you sent: linstor seems to be
> happy with the auto-place (that scary large negative number at the ret_code
> is only a warning that you apparently have only 2 nodes but auto-tiebreaker
> is active.. without a 3rd node that feature cannot be used, which is what
> linstor warns you about  - usually that warning can be safely ignored)
> --
> Best regards,
> Gabor
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