[Bugs] [Bug 1479692] Running sysbench on vm disk from plain distribute gluster volume causes disk corruption

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1479692



--- Comment #3 from Krutika Dhananjay <kdhananj at redhat.com> ---
(In reply to Johan Bernhardsson from comment #1)
> Could this affect writes as well? I see a similar problem when running dd
> if=/dev/zero of=/pathtoglusterfsmount/testfile bs=1M count=1000 oflag=direct
> 
> It fails horribly on write and dd fails horribly. If we add write behind and
> set that to a high value it works.
> 
> Also it only affects when shard is enabled.

Yes, it can fail WRITEs too. Yeah it is more prominent with shard but the bug
iteself is in posix translator and not shard.

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