Bug 1318000

Summary:	[GSS] - Glusterd not operational due to snapshot conflicting with nfs-ganesha export file in "/var/lib/glusterd/snaps"
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Mukul Malhotra <mmalhotr>
Component:	nfs-ganesha	Assignee:	Jiffin <jthottan>
Status:	CLOSED ERRATA	QA Contact:	Manisha Saini <msaini>
Severity:	high	Docs Contact:
Priority:	high
Version:	rhgs-3.1	CC:	amukherj, bkunal, jthottan, kkeithle, nlevinki, olim, rcyriac, rhinduja, rjoseph
Target Milestone:	---
Target Release:	RHGS 3.2.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glusterfs-3.8.4-1	Doc Type:	Bug Fix
Doc Text:	The glusterd service expected that all files in the /var/lib/glusterd/snaps/<snapshot name> directory were volumes. This meant that when a snapshot was taken of an NFS-Ganesha volume, glusterd interpreted the configuration file as an invalid volume and did not start. Glusterd now starts correctly in this situation.	Story Points:	---
Clone Of:
Clones:	1318591 (view as bug list)		Environment:
Last Closed:	2017-03-23 05:27:45 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:	1318591
Bug Blocks:	1351515, 1351530, 1365265, 1365797

Comment 3 Mukul Malhotra 2016-03-16 14:35:49 UTC

Hello,

Also, please improve the logging related to nfs-ganesha in the logs so that the same should be visible & would help in troubleshooting the issue.

Thanks
Mukul

Comment 4 Jiffin 2016-03-17 14:07:31 UTC

Patches posted in upstream for review

http://review.gluster.org/#/c/13763/
http://review.gluster.org/#/c/13764/

Comment 5 Kaleb KEITHLEY 2016-06-20 12:19:52 UTC

fix is upstream, needs to be merged downstream

Comment 7 Atin Mukherjee 2016-09-17 12:08:27 UTC

Upstream mainline : http://review.gluster.org/13764
Upstream 3.8 : http://review.gluster.org/15113

And the fix is available in rhgs-3.2.0 as part of rebase to GlusterFS 3.8.4.

Comment 10 Manisha Saini 2016-12-15 10:28:21 UTC

Verified this Bug on 

# rpm -qa | grep ganesha
nfs-ganesha-2.4.1-2.el7rhgs.x86_64
glusterfs-ganesha-3.8.4-8.el7rhgs.x86_64
nfs-ganesha-gluster-2.4.1-2.el7rhgs.x86_64


# cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.3 (Maipo)

Steps:
1.Create NFS ganesha 4 node cluster setup.
2.Create a Volume and enable NFS-Ganesha on it.
3.Take snapshot of that volume.
4.Stop glusterd and restart glusterd services

Test Case2:
1.Create NFS ganesha 4 node cluster setup.
2.Create a Volume and enable NFS-Ganesha on it.
3.Take snapshot of that volume.
4.In /var/lib/glusterd/snaps/ remove export.snap1.conf file.
5.Restart glusterd services

As the issue is no more observed,Hence marking this Bug as verified.

Comment 13 errata-xmlrpc 2017-03-23 05:27:45 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://rhn.redhat.com/errata/RHSA-2017-0486.html