[lustre-discuss] changelogs stop working

[Stephane Thiell]

Hi Thomas,

Nodemap’s audit_mode is not defaulting to 1 on upgrade to Lustre 2.12. If you have recently experienced the issue when upgraded a filesystem from 2.10 to Lustre 2.12, so please check that flag maybe.
https://build.whamcloud.com/job/lustre-manual/lastSuccessfulBuild/artifact/lustre_manual.xhtml#idm140393770548752

We have opened LU-14059 for that.

Best,

Stephane




> On Dec 8, 2020, at 3:04 AM, Thomas Roth <t.roth at gsi.de> wrote:
> 
> Hi all,
> 
> Lustre 2.12.5 here. Changelogs no longer working except for 12LYOUT
> 
> Did this now on a test system, no user interference. Deregistered all users, registered new user, set changelog_mask=ALL
> Watching changelogs by 'lfs changelog lustre-MDT0000 --follow'
> 
> Create a directory - no change
> Go to that directory and rsync a Linux kernel source directory into it - rsync shows that it is copying files and creating directories.
> Changelogs - nada
> 
> Create an empty file - no changelog
> Echo something into that file - Layout Change!
> 
> 
> Repeat: clear changelogs, remove cl users, register user, set changelog_mask to ALL.
> Create an empty file - no changelog
> Echo something into that file - changelog nada.
> 
> 
> This is a slowly decaying feature. I have no idea how we could have managed that.
> 
> Any ideas?
> 
> Regards,
> Thomas
> 
> --
> -----------------------------------------------------------------------------
> Thomas Roth
> HPC Department
> 
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