[Gluster-users] parallel-readdir is not recognized in GlusterFS 3.12.4

[Alan Orth]

Thanks, Raghavendra. I won't be able to test readdir-ahead again because it
caused a lot of issues for my users and I don't have the resources to set
up a test environment right now. I hope someone can help figure this bug
out eventually though.

Cheers,

On Tue, Jan 30, 2018 at 1:36 PM Raghavendra Gowdappa <rgowdapp at redhat.com>
wrote:

>
>
> ----- Original Message -----
> > From: "Alan Orth" <alan.orth at gmail.com>
> > To: "Raghavendra Gowdappa" <rgowdapp at redhat.com>
> > Cc: "gluster-users" <gluster-users at gluster.org>
> > Sent: Tuesday, January 30, 2018 1:37:40 PM
> > Subject: Re: [Gluster-users] parallel-readdir is not recognized in
> GlusterFS  3.12.4
> >
> > Thank you, Raghavendra. I guess this cosmetic fix will be in 3.12.6?
>
> Yes.
>
> >
> > I'm also looking forward to seeing stability fixes to parallel-readdir
> and or
> > readdir-ahead in 3.12.x. :)
>
> I am not sure what caused disconnects. readdir-ahead shouldn't result in
> purging of connections. We've not seen this behavior in our internal tests
> (We have done quite a significant amount of testing on this to ascertain
> performance impact). We need to investigate this. Can you file a bug on
> this providing following information:
> * log files of client and brick process
> * test-case to reproduce the issue.
> * Test environment (OS, volume profile info etc).
>
> regards,
> Raghavendra
> >
> > Cheers,
> >
> > On Mon, Jan 29, 2018 at 9:26 AM Raghavendra Gowdappa <
> rgowdapp at redhat.com >
> > wrote:
> >
> >
> >
> >
> > ----- Original Message -----
> > > From: "Pranith Kumar Karampuri" < pkarampu at redhat.com >
> > > To: "Alan Orth" < alan.orth at gmail.com >
> > > Cc: "gluster-users" < gluster-users at gluster.org >
> > > Sent: Saturday, January 27, 2018 7:31:30 AM
> > > Subject: Re: [Gluster-users] parallel-readdir is not recognized in
> > > GlusterFS 3.12.4
> > >
> > > Adding devs who work on it
> > >
> > > On 23 Jan 2018 10:40 pm, "Alan Orth" < alan.orth at gmail.com > wrote:
> > >
> > >
> > >
> > > Hello,
> > >
> > > I saw that parallel-readdir was an experimental feature in GlusterFS
> > > version
> > > 3.10.0, became stable in version 3.11.0, and is now recommended for
> small
> > > file workloads in the Red Hat Gluster Storage Server documentation[2].
> I've
> > > successfully enabled this on one of my volumes but I notice the
> following
> > > in
> > > the client mount log:
> > >
> > > [2018-01-23 10:24:24.048055] W [MSGID: 101174]
> > > [graph.c:363:_log_if_unknown_option] 0-homes-readdir-ahead-1: option
> > > 'parallel-readdir' is not recognized
> > > [2018-01-23 10:24:24.048072] W [MSGID: 101174]
> > > [graph.c:363:_log_if_unknown_option] 0-homes-readdir-ahead-0: option
> > > 'parallel-readdir' is not recognized
> > >
> >
> > This is fixed by patch:
> > https://review.gluster.org/#/c/18572/
> >
> > Please note that the log message is harmless and parallel-readdir is
> enabled
> > even with this log. You can verify that by looking into gluster volume
> > configuration logged in glusterfs logs. If parallel-readdir is enabled,
> you
> > should see a readdir-ahead translator loaded as a parent of each DHT
> > subvolume.
> >
> > > The GlusterFS version on the client and server is 3.12.4. What is
> going on?
> > >
> > > [0]
> > >
> https://github.com/gluster/glusterfs/blob/release-3.10/doc/release-notes/3.10.0.md
> > > [1]
> > >
> https://github.com/gluster/glusterfs/blob/release-3.11/doc/release-notes/3.11.0.md
> > > [2]
> > >
> https://access.redhat.com/documentation/en-us/red_hat_gluster_storage/3.3/html/administration_guide/small_file_performance_enhancements
> > >
> > > Thank you,
> > >
> > >
> > > --
> > >
> > >
> > > Alan Orth
> > > alan.orth at gmail.com
> > > https://picturingjordan.com
> > > https://englishbulgaria.net
> > > https://mjanja.ch
> > >
> > > _______________________________________________
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> > > Gluster-users at gluster.org
> > > http://lists.gluster.org/mailman/listinfo/gluster-users
> > >
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> > --
> >
> >
> > Alan Orth
> > alan.orth at gmail.com
> > https://picturingjordan.com
> > https://englishbulgaria.net
> > https://mjanja.ch
> >
> > _______________________________________________
> > Gluster-users mailing list
> > Gluster-users at gluster.org
> > http://lists.gluster.org/mailman/listinfo/gluster-users
>
-- 

Alan Orth
alan.orth at gmail.com
https://picturingjordan.com
https://englishbulgaria.net
https://mjanja.ch
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