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 <matonb@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 <akrejcir@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 <matonb@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 <fromani@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