Bug 1498391

Summary: [RFE] Changelog option in a gluster volume disables with no warning
Product: [Red Hat Storage] Red Hat Gluster Storage Reporter: Rochelle <rallan>
Component: geo-replicationAssignee: Kotresh HR <khiremat>
Status: CLOSED ERRATA QA Contact: Rochelle <rallan>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rhgs-3.3CC: amukherj, csaba, khiremat, rallan, rhinduja, rhs-bugs, sheggodu, srmukher, storage-qa-internal
Target Milestone: ---Keywords: FutureFeature
Target Release: RHGS 3.4.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: glusterfs-3.12.2-2 Doc Type: Enhancement
Doc Text:
Geo-replication uses changelog feature and enables it as part of geo-rep session creation. But the command to disable changelog doesn't warn about geo-replication being configured and disabled successfully. With this fix, a check is added while disabling changelog to check for a geo-replication session. Hence, while disabling changelog, a warning is generated for the user about an existing geo-replication session(if any).
 Story Points: ---
Clone Of:
: 1503227 (view as bug list) Environment:
Last Closed: 2018-09-04 06:36:24 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1503132, 1503227    

Description Rochelle 2017-10-04 08:12:24 UTC 
Description of problem:
------------------------
When disabling changelog for a volume which is participating in the geo-replication, there should be a clear warning that this could affect the geo-replication session in which that particular volume is participating. 
Changelog currently disables with no warning. 

[root@dhcp42-35 ~]# gluster volume set master changelog.changelog off
volume set: success
[root@dhcp42-35 ~]# 




Version-Release number of selected component (if applicable):
-------------------------------------------------------------
glusterfs-geo-replication-3.8.4-45.el7rhgs.x86_64
Comment 2 Kotresh HR 2017-10-09 09:38:21 UTC 
Hi Rochelle,

Before fixing this, let's get to know how does it affect geo-replication.
I think geo-replication should go to hybrid crawl if the changelogs are not available and would affect unlinks and rename syncing.

@Rochelle,

Could you confirm this?
Comment 4 Kotresh HR 2017-10-17 15:35:11 UTC 
Upstream Patch:

https://review.gluster.org/#/c/18540/ (master)
Comment 8 Srijita Mukherjee 2018-09-03 15:20:09 UTC 
Have updated the doc text. kindly review and confirm the technical accuracy for the same.
Comment 11 errata-xmlrpc 2018-09-04 06:36:24 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:2607