[Bugs] [Bug 1552404] New: [CIOT] : Gluster CLI says "io-threads : enabled" on existing volumes post upgrade.

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1552404

            Bug ID: 1552404
           Summary: [CIOT] : Gluster CLI says "io-threads : enabled" on
                    existing volumes post upgrade.
           Product: GlusterFS
           Version: 4.0
         Component: glusterd
          Keywords: Triaged
          Severity: high
          Assignee: bugs at gluster.org
          Reporter: ravishankar at redhat.com
                CC: amukherj at redhat.com, asoman at redhat.com,
                    bugs at gluster.org, rhinduja at redhat.com,
                    rhs-bugs at redhat.com, sasundar at redhat.com
        Depends On: 1543068, 1545056
            Blocks: 1503137



+++ This bug was initially created as a clone of Bug #1545056 +++

+++ This bug was initially created as a clone of Bug #1543068 +++

Description of problem:

I have also repro'd it for old volumes. Have a replicate volume , upgrade
gluster bits ,bump up op version and check CIOT via CLI.

Freshly created volumes have IOT as "off" post upgrade,which is expected.

I can confirm that the xlator is not loaded in the volfile in eoither case.

--- Additional comment from Worker Ant on 2018-02-14 02:31:09 EST ---

REVIEW: https://review.gluster.org/19567 (glusterd: fix bug in volume get value
for client-io-threads) posted (#1) for review on master by Ravishankar N

--- Additional comment from Worker Ant on 2018-03-06 23:48:39 EST ---

COMMIT: https://review.gluster.org/19567 committed in master by "Atin
Mukherjee" <amukherj at redhat.com> with a commit message- glusterd: volume get
fixes for client-io-threads & quorum-type

1. If a replica volume created on glusterfs-3.8 was upgraded to
glusterfs-3.12, `gluster vol get volname client-io-threads` displayed
'on' even though it wasn't and the xlator wasn't loaded on
the client-graph. This was due to removing certain checks in
glusterd_get_default_val_for_volopt as a part of commit
47604fad4c2a3951077e41e0c007ceb979bb2c24. Fix it.

2. Also, as a part of op-version bump-up, client-io-threads was being
loaded on the clients  during volfile regeneration. Prevent it.

3. AFR assumes quorum-type to be auto in newly created replic 3 (odd
replica in general) volumes but `gluster vol get quorum-type` displays
'none'. Fix it.

Change-Id: I19e586361ed1065c70fb378533d3b4dac1095df9
BUG: 1545056
Signed-off-by: Ravishankar N <ravishankar at redhat.com>


Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=1543068
[Bug 1543068] [CIOT] : Gluster CLI says "io-threads : enabled" on existing
volumes post upgrade.
https://bugzilla.redhat.com/show_bug.cgi?id=1545056
[Bug 1545056] [CIOT] : Gluster CLI says "io-threads : enabled" on existing
volumes post upgrade.
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