Gluster users - Dec 2015 - File Corruption with shards - 100% reproducable

On 20/11/15 15:15, Lindsay Mathieson wrote:
> One caveat - I started testing with 3.7.5, then upgraded to 3.7.6, but 
> didn't upgrade the op-version (always forget that).
>
> Once I set the op version to 3.7.6 sharded volumes started reporting 
> correct file sizes (for new files) even with strict-write-ordering 
> off. However disk usage was still out by a lot. 
Ignore that, I just retested and file sizes (ls -l) were wildly out.

However the VM still migrates between nodes with with 
strict-write-ordering off, no problems.

My apologies for the confusion.

Thanks Lindsay for the confirmation. 

The patch http://review.gluster.org/#/c/12717/ might just be the fix to the
issue you ran into with performance.stat-prefetch on.
With this patch, it should be possible to enable stat-prefetch without running
into any problems.

-Krutika 

----- Original Message -----
> From: "Lindsay Mathieson" <lindsay.mathieson at gmail.com>
> To: "Krutika Dhananjay" <kdhananj at redhat.com>
> Cc: "gluster-users" <gluster-users at gluster.org>
> Sent: Friday, November 20, 2015 11:56:04 AM
> Subject: Re: [Gluster-users] File Corruption with shards - 100%
reproducable
> On 20/11/15 15:15, Lindsay Mathieson wrote:
> > One caveat - I started testing with 3.7.5, then upgraded to 3.7.6, but
> > didn't upgrade the op-version (always forget that).
> >
> > Once I set the op version to 3.7.6 sharded volumes started reporting
> > correct file sizes (for new files) even with strict-write-ordering
> > off. However disk usage was still out by a lot.
> Ignore that, I just retested and file sizes (ls -l) were wildly out.
> However the VM still migrates between nodes with with
> strict-write-ordering off, no problems.
> My apologies for the confusion.
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On 23/11/15 19:44, Krutika Dhananjay wrote:
> The patch http://review.gluster.org/#/c/12717/ might just be the fix 
> to the issue you ran into with performance.stat-prefetch on.
> With this patch, it should be possible to enable stat-prefetch without 
> running into any problems.
>

Is this in 3.7.6? because live migrations still cause corruption with 
performance.stat-prefetch on :)

-- 
Lindsay Mathieson