Re: Speed up heal performance

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On Tuesday 13 October 2015 09:03 AM, Atin Mukherjee wrote:


On 10/13/2015 08:13 AM, Lindsay Mathieson wrote:

On 13 October 2015 at 11:56, Atin Mukherjee <atin.mukherjee83@xxxxxxxxx
<mailto:atin.mukherjee83@xxxxxxxxx>> wrote:

     Good news is we already have a WIP patch review.glusterd.org/10851
     <http://review.glusterd.org/10851> to introduce multi threaded shd.


Thanks Atin, no need for the RFE then?
https://bugzilla.redhat.com/show_bug.cgi?id=1221737 - as I mentioned
earlier it was already opened.

I notice the patch mainly discusses improvingthe performanceof healing
many small files, will it help with large VM files as well?
AFAIK, it would help large files as well, but you would see a
significant improvement specially for small files IMO. AFR team can
correct me otherwise.


[1] has details about the improvements being planned for both data and entry self-heals. While data self-healing improvements mostly help large files, granular entry self-heal can help when you have a large number of files in a single directory (typically seen with small files).

multi-threaded self-heal daemon should help both small & large files by parallelizing the number of heals.

Regards,
Vijay


[1] http://review.gluster.org/#/c/12257/1/in_progress/afr-self-heal-improvements.md


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