[Gluster-devel] Release 3.13.2: Planned for 19th of Jan, 2018

[Shyam Ranganathan]

On 01/18/2018 07:56 PM, Ravishankar N wrote:
>>> 1. There is one patch https://review.gluster.org/#/c/19218/ which
>>> introduces full locks for afr writevs. We're introducing this as a
>>> GD_OP_VERSION_3_13_2 option. Please wait for it to be merged on 3.13
>>> branch today. Karthik, please back port the patch.
>> Do we need this behind an option, if existing behavior causes split
>> brains?
> Yes this is for split-brain prevention. Arbiter volumes already take
> full locks but not normal replica volumes. This is for normal replica
> volumes. See Pranith's comment in
> https://review.gluster.org/#/c/19218/1/xlators/mgmt/glusterd/src/glusterd-volume-set.c@1557

Ack, so the option is a NO_DOC and needs to be set when things need to
be reverted to the older behavior (and at that point we need to move the
cluster opversion as well).