[Gluster-users] Speed up heal performance

Humble Devassy Chirammal humble.devassy at gmail.com
Tue Oct 13 10:14:46 UTC 2015


>Good news is we already have a WIP patch review.glusterd.org/10851 to
introduce multi threaded shd. Credits to Richard/Shreyas from facebook for
this. IIRC, we also have a BZ for the same
>
Isnt it the same bugzilla (
https://bugzilla.redhat.com/show_bug.cgi?id=1221737) mentioned in the
commit log?

--Humble


On Tue, Oct 13, 2015 at 7:26 AM, Atin Mukherjee <atin.mukherjee83 at gmail.com>
wrote:

> -Atin
> Sent from one plus one
> On Oct 13, 2015 3:16 AM, "Ben Turner" <bturner at redhat.com> wrote:
> >
> > ----- Original Message -----
> > > From: "Lindsay Mathieson" <lindsay.mathieson at gmail.com>
> > > To: "gluster-users" <gluster-users at gluster.org>
> > > Sent: Friday, October 9, 2015 9:18:11 AM
> > > Subject: [Gluster-users] Speed up heal performance
> > >
> > > Is there any way to max out heal performance? My cluster is unused
> overnight,
> > > and lightly used at lunchtimes, it would be handy to speed up a heal.
> > >
> > > The only tuneable I found was cluster.self-heal-window-size, which
> doesn't
> > > seem to make much difference.
> >
> > I don't know of any way to speed this up, maybe someone else could chime
> in here that knows the heal daemon better than me.  Maybe you could open an
> RFE on this?  In my testing I only see 2 files getting healed at a time per
> replica pair.  I would like to see this be multi threaded(if its not
> already) with the ability to tune it to control resource usage(similar to
> what we did in the rebalance refactoring done recently).  If you let me
> know the BZ # I'll add my data + suggestions, I have been testing this
> pretty extensively in recent weeks and good data + some ideas on how to
> speed things up.
> Good news is we already have a WIP patch review.glusterd.org/10851 to
> introduce multi threaded shd. Credits to Richard/Shreyas from facebook for
> this. IIRC, we also have a BZ for the same but the patch is in rfc as of
> now. AFAIK, this is a candidate to land in 3.8 as well, Vijay can correct
> me otherwise.
> >
> > -b
> >
> > > thanks,
> > > --
> > > Lindsay
> > >
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