That is interesting... The only time I've seen two starting is when someone manually cleared the environment lock. That said I've never tried running from a different node at the same time. I presume they would be duplicating effort based on the node name being used in the shadow database file name.
Kind regards, Craig Wilson. On 27 May 2016 at 11:49, Simon Thompson (Research Computing - IT Services) < [email protected]> wrote: > Now we've seen different to this... But maybe it depends how you run > mmbackup multiple times. > > We have several nodes which are backing up via Spectrum Protect, and we > thought it would be nice to have the client scheduler running on multiple > nodes, we assumed it would only actually run one instance of the backup. > Not so. We've seen two client schedulers kick off mmbackup (each then I > think running across several nodes). > > Simon > > From: <[email protected]> on behalf of Craig > Wilson <[email protected]> > Reply-To: "[email protected]" < > [email protected]> > Date: Friday, 27 May 2016 at 11:32 > To: "[email protected]" <[email protected]> > Subject: Re: [gpfsug-discuss] mmbackup - Two at a time? > > Hi Scott > > I've not tried this one 4.# branch as I'm still running 3.5 but on 3.5 you > get a error message saying: > > mmbackup: Failed to obtain the local environment update lock. > mmbackup: Command failed. Examine previous error messages to determine > cause. > > The old mmbackup keeps running through. > > Kind Regards, > > Craig Wilson. > HPC Systems Engineer > OCF Plc. > > On 26 May 2016 at 16:57, Scott Cumbie <[email protected]> > wrote: > >> Just wondering if anyone has a quick answer to this question. If >> mmbackup is running on a filesystem and a second mmbackup is executed on >> the same filesystem, what happens? Does the second one end because the >> first one is running? >> >> Thanks, >> Scott >> >> >> >> >> >> _______________________________________________ >> gpfsug-discuss mailing list >> gpfsug-discuss at spectrumscale.org >> http://gpfsug.org/mailman/listinfo/gpfsug-discuss >> >> > > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss > >
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