[Gluster-devel] RPC, DHT and AFR logging errors that are expected, reduce log level?

Pranith Kumar Karampuri pkarampu at redhat.com
Fri Sep 30 03:40:03 UTC 2016

On Thu, Sep 29, 2016 at 7:51 PM, Niels de Vos <ndevos at redhat.com> wrote:

> Hello,
> When NFS-Ganesha does an UNLINK of a filename on an inode, it does a
> follow-up check to see if the inode has been deleted or if there are
> still other filenames linked (like hardlinks) to it.
> Users are getting confused about the errors that are logged by RPC, DHT
> and AFR. The file is missing (which is often perfectly expected from a
> NFS-Ganesha point of view) and this causes a flood of messages.
> From https://bugzilla.redhat.com/show_bug.cgi?id=1328581#c5 :
> > If we reduce the log level for
> > client-rpc-fops.c:2974:client3_3_lookup_cbk there would be the
> > following entries left:
> >
> > 2x dht-helper.c:1179:dht_migration_complete_check_task
> > 2x afr-read-txn.c:250:afr_read_txn
> >
> > it would reduce the logging for this non-error with 10 out of 14
> > messages. We need to know from the AFR and DHT team if these messages
> > are sufficient for them to identify potential issues.

Updated the bug from the perspective of AFR as well:

"I am not sure how an inode which is not in split-brain is linked as 'no
read-subvolumes' case. That is something to debug."

> Thanks,
> Niels

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