I rebooted the server that was failing last week and haven't seen the error since.
On 25 July 2018 at 11:48, Andrej Krejcir <akrej...@redhat.com> wrote: > I think the upgrade may not have affected the mom package, because no new > mom rpm version was released for a few months. > > I'm not sure why the import fails even if the file is there. > > As a workaround, mom can be configured to use the older (deprecated) json > rpc interface to communicate with vdsm. There is no difference in > functionality. > This can be done by editing /etc/vdsm/mom.conf. Set the > 'hypervisor-interface' config value to 'vdsmjsonrpcbulk' insted of > 'vdsmjsonrpcclient'. > > On Wed, 25 Jul 2018 at 08:56, Maton, Brett <mat...@ltresources.co.uk> > wrote: > >> I upgraded my test cluster to 4.2.5.2-1 last night (hosts rebooted after >> update) and I've started to see the error again. >> >> As before it seems to be limited to the one host, I've checked that >> >> /usr/lib/python2.7/site-packages/mom/HypervisorInterfaces/ >> vdsmjsonrpcclientInterface.py >> >> exists, which it does but there are no matching .pyc / .pyo files which >> suggests that it's not been used? >> >> File permissions and SELinux contexts are the same on all files in the >> HypervisorInterfaces directory. >> >> 0644 root root system_u:object_r:lib_t:s0 >> >> vdsm / mom log from time period attached. >> >> >> On 18 July 2018 at 16:10, Maton, Brett <mat...@ltresources.co.uk> wrote: >> >>> Thanks, >>> >>> Cluster is all installed from pre-release, maybe I managed to get an >>> iffy rpm.... >>> >>> On 18 July 2018 at 15:50, Andrej Krejcir <akrej...@redhat.com> wrote: >>> >>>> Yes, copying it from another host with mom version 0.5.12 is enough. >>>> >>>> I'm not sure why it was not installed. The file is in the rpm. >>>> >>>> On Wed, 18 Jul 2018 at 16:38, Maton, Brett <mat...@ltresources.co.uk> >>>> wrote: >>>> >>>>> Bingo >>>>> >>>>> How could that file not be installed/deployed ? >>>>> >>>>> >>>>> Should I simply copy it from one of the other hosts to make the >>>>> message go away ? >>>>> >>>>> On 18 July 2018 at 15:30, Andrej Krejcir <akrej...@redhat.com> wrote: >>>>> >>>>>> Maybe the python module is missing. Can you check if this file exists? >>>>>> >>>>>> /usr/lib/python2.7/site-packages/mom/HypervisorInterfaces/ >>>>>> vdsmjsonrpcclientInterface.py >>>>>> >>>>>> >>>>>> Andrej >>>>>> >>>>>> On Wed, 18 Jul 2018 at 16:04, Maton, Brett <mat...@ltresources.co.uk> >>>>>> wrote: >>>>>> >>>>>>> I just checked the mom version, it's already at 0.5.12 >>>>>>> >>>>>>> # rpm -qa mom >>>>>>> mom-0.5.12-1.el7.centos.noarch >>>>>>> >>>>>>> All the physical hosts are fully updated /patched. >>>>>>> >>>>>>> Regards, >>>>>>> Brett >>>>>>> >>>>>>> On 18 July 2018 at 14:08, Andrej Krejcir <akrej...@redhat.com> >>>>>>> wrote: >>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> Looking at MOM logs, the problem seems to be that MOM is configured >>>>>>>> to use 'vdsmjsonrpcclient' module to communicate with vdsm, but it >>>>>>>> cannot find this module, probably because it is an older version. >>>>>>>> >>>>>>>> Updating MOM to version 0.5.12 should fix it. >>>>>>>> >>>>>>>> >>>>>>>> Regards, >>>>>>>> Andrej >>>>>>>> >>>>>>>> On Wed, 18 Jul 2018 at 14:41, Maton, Brett < >>>>>>>> mat...@ltresources.co.uk> wrote: >>>>>>>> >>>>>>>>> FWIW: >>>>>>>>> >>>>>>>>> This test cluster is 3x HP MicroServer Gen 8 16GB RAM, Intel(R) >>>>>>>>> Xeon(R) CPU E3-1220 V2 @ 3.10GHz >>>>>>>>> >>>>>>>>> Network is bonded fail-over. >>>>>>>>> >>>>>>>>> Regards, >>>>>>>>> Brett >>>>>>>>> >>>>>>>>> On 18 July 2018 at 13:15, Francesco Romani <from...@redhat.com> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Thanks! >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> On 07/18/2018 02:11 PM, Maton, Brett wrote: >>>>>>>>>> >>>>>>>>>>> Sure no problem, mom log attached. >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> It seems to me that MOM is restarting *very* often: >>>>>>>>>> >>>>>>>>>> 2018-07-18 06:07:04,909 - mom - INFO - MOM starting >>>>>>>>>> 2018-07-18 06:07:20,407 - mom - INFO - MOM starting >>>>>>>>>> 2018-07-18 06:07:30,658 - mom - INFO - MOM starting >>>>>>>>>> 2018-07-18 06:07:30,658 - mom - INFO - MOM starting >>>>>>>>>> >>>>>>>>>> And I totally not expect this. Martin, Andrej, is this the >>>>>>>>>> expected behaviour? >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Bests, >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Francesco Romani >>>>>>>>>> Senior SW Eng., Virtualization R&D >>>>>>>>>> Red Hat >>>>>>>>>> IRC: fromani github: @fromanirh >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>> >>>>> >>> >>
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