[Bugs] [Bug 1578325] Input/ Output errors on a disperse volume with concurrent reads and writes

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1578325

Worker Ant <bugzilla-bot at gluster.org> changed:

           What    |Removed                     |Added
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             Status|POST                        |MODIFIED



--- Comment #2 from Worker Ant <bugzilla-bot at gluster.org> ---
COMMIT: https://review.gluster.org/20024 committed in master by "Xavi
Hernandez" <xhernandez at redhat.com> with a commit message- cluster/ec: Fix
pre-op xattrop management

Multiple pre-op xattrop can be simultaneously being processed. On the cbk
it was checked if the fop was waiting for some specific data (like size and
version) and, if so, it was assumed that this answer should contain that
data.

This is not true, since a fop can be waiting for some data, but it may come
from the xattrop of another fop.

This patch differentiates between needing some information and providing it.

This is related to parallel writes. Disabling them fixed the problem, but
also prevented concurrent reads. A change has been made so that disabling
parallel writes still allows parallel reads.

Fixes: bz#1578325
Change-Id: I74772ad6b80b7b37805da93d5ec3ae099e96b041
Signed-off-by: Xavi Hernandez <xhernandez at redhat.com>

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