[gpfsug-discuss] File system manager - won't change to new node

[Jordan Robertson]

Two thoughts:

1) Has your config data update fully propagated after the mmchnode?  We've
(rarely) seen some weird stuff happen when that process isn't complete yet,
or if a node in question simply didn't get the update (try md5sum'ing the
mmsdrfs file on nrg1-gpfs13 and compare to the cluster manager's md5sum,
make sure the push process isn't still running, etc.).  If you see
discrepancies, you could try an mmsdrrestore to get that node back into
spec.

2) If everything looks fine; what are the chances you could simply try
restarting GPFS on nrg1-gpfs13?  Might be particularly interesting to see
what the cluster tries to do with the filesystem once that node is down.

-Jordan

On Fri, Jun 22, 2018 at 9:28 AM, Oesterlin, Robert <
Robert.Oesterlin at nuance.com> wrote:

> Yep. And nrg1-gpfs13 isn’t even a manager node anymore!
>
>
>
> [root at nrg1-gpfs01 ~]# mmchmgr dataeng nrg1-gpfs05
>
> Sending migrate request to current manager node 10.30.43.136 (nrg1-gpfs13).
>
> Node 10.30.43.136 (nrg1-gpfs13) resigned as manager for dataeng.
>
> Node 10.30.43.136 (nrg1-gpfs13) appointed as manager for dataeng.
>
>
>
> 2018-06-22_09:26:08.305-0400: [I] Command: mmchmgr /dev/dataeng
> nrg1-gpfs05.nrg1.us.grid.nuance.com
>
> 2018-06-22_09:26:09.178-0400: [N] Node 10.30.43.136 (nrg1-gpfs13) resigned
> as manager for dataeng.
>
> 2018-06-22_09:26:09.179-0400: [N] Node 10.30.43.136 (nrg1-gpfs13)
> appointed as manager for dataeng.
>
> 2018-06-22_09:26:09.179-0400: [I] Command: successful mmchmgr /dev/dataeng
> nrg1-gpfs05.nrg1.us.grid.nuance.com
>
> 2018-06-22_09:26:10.116-0400: [I] Node 10.30.43.136 (nrg1-gpfs13)
> completed take over for dataeng.
>
>
>
> Bob Oesterlin
>
> Sr Principal Storage Engineer, Nuance
>
>
>
>
>
> *From: *<gpfsug-discuss-bounces at spectrumscale.org> on behalf of
> "Buterbaugh, Kevin L" <Kevin.Buterbaugh at Vanderbilt.Edu>
> *Reply-To: *gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
> *Date: *Friday, June 22, 2018 at 8:21 AM
> *To: *gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
> *Subject: *[EXTERNAL] Re: [gpfsug-discuss] File system manager - won't
> change to new node
>
>
>
> Hi Bob,
>
>
>
> Have you tried explicitly moving it to a specific manager node?  That’s
> what I always do … I personally never let GPFS pick when I’m moving the
> management functions for some reason.  Thanks…
>
>
>
> Kevin
>
>
>
>
>
> _______________________________________________
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> gpfsug-discuss at spectrumscale.org
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>
>
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