Bug 1145911

Summary:	[SNAPSHOT]: Deletion of a snapshot in a volume or system fails if some operation which acquires the volume lock comes in between.
Product:	[Community] GlusterFS	Reporter:	Sachin Pandit <spandit>
Component:	glusterd	Assignee:	bugs <bugs>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	3.6.0	CC:	bugs, smohan
Target Milestone:	---	Keywords:	Triaged
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	SNAPSHOT
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	1126289	Environment:
Last Closed:	2016-08-01 04:42:40 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:	1126289
Bug Blocks:

Description Sachin Pandit 2014-09-24 06:15:32 UTC

+++ This bug was initially created as a clone of Bug #1126289 +++

Description of problem:
gluster snapshot delete volume <volname>
          (or)
gluster snapshot delete all

The above two commands might fail if some operation which acquires the
lock comes in between.

Explanation :
snapshot delete volume <volname> does a multiple RPC when tried to
do deletion of multiple snapshots in a volume. If some other operation
which acquires the lock comes in between, then snapshot delete will fail
with "another transaction in progress" error.


Version-Release number of selected component (if applicable):


How reproducible:
1/1


Steps to Reproduce:
1. issue a snapshot delete volume <volname> (say volname is vol1)
2. when step (1) is in progress, issue another command which takes a lock on volume vol1

Actual results:
snapshot delete fails with another transaction in progress.

Expected results:
command should not fail. 


Additional info:
Its better to give certain retries before failing.

--- Additional comment from Anand Avati on 2014-08-11 05:47:23 EDT ---

REVIEW: http://review.gluster.org/8454 (glusterd/snapshot : Differentiating between various error scenario.) posted (#1) for review on master by Sachin Pandit (spandit)

Comment 2 Atin Mukherjee 2016-08-01 04:42:40 UTC

This is not a security bug, not going to fix this in 3.6.x because of
http://www.gluster.org/pipermail/gluster-users/2016-July/027682.html

Comment 3 Atin Mukherjee 2016-08-01 04:43:59 UTC

If the issue persists in the latest releases, please feel free to clone them