Bug 1343320

Summary:	[GSS] Gluster fuse client crashed generating core dump
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Bipin Kunal <bkunal>
Component:	fuse	Assignee:	Nithya Balachandran <nbalacha>
Status:	CLOSED ERRATA	QA Contact:	Prasad Desala <tdesala>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rhgs-3.1	CC:	amukherj, csaba, lasilva, nbalacha, rcyriac, rfreire, rgowdapp, rhinduja, smohan
Target Milestone:	---
Target Release:	RHGS 3.2.0
Hardware:	x86_64
OS:	Linux
Whiteboard:	dht-qe-3.2, dht-gss, dht-gss-ask, dht-3.2.0-proposed
Fixed In Version:	glusterfs-3.8.4-1	Doc Type:	Bug Fix
Doc Text:	After a connection failure, the Gluster FUSE client did not correctly clean up threads spawned to handle the failure, which resulted in a memory leak. This caused a crash when the process was killed to reclaim memory. Threads are now cleaned up correctly and the process is no longer killed, preventing the crash.	Story Points:	---
Clone Of:
Clones:	1343374 (view as bug list)		Environment:
Last Closed:	2017-03-23 05:34:56 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:	1343374, 1351515, 1351530, 1354250, 1360553

Description Bipin Kunal 2016-06-07 06:58:18 UTC

Description of problem:
Client crash with core dump
excessive memory consumption


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

3.7.5-19.el7rhgs.x86_64
RHEL 5

Additional info:
lots of DNS resolution error found in client logs

Comment 4 Nithya Balachandran 2016-06-08 04:25:22 UTC

Upstream patch available at:
http://review.gluster.org/#/c/14661/

Comment 8 Atin Mukherjee 2016-09-17 11:59:57 UTC

Upstream mainline : http://review.gluster.org/14875
Upstream 3.8 : http://review.gluster.org/14979

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

Comment 12 Prasad Desala 2016-10-25 09:13:05 UTC

Followed the same steps updated in Comment 11 on a 3.1.3 system. I am able to see continuous "DNS resolution failed" errors in the fuse logs and the memory usage keeps growing which results the system to crash.
 
Same steps were followed to verify this BZ on a 3.8.4-2.el7rhgs.x86_64 system. After the fix, no memory leak is seen due to the "DNS resolution failed" errors.

Hence, moving this BZ to Verified.

Comment 18 Nithya Balachandran 2017-03-07 10:58:38 UTC

Looks good. Thanks Laura.

Comment 20 errata-xmlrpc 2017-03-23 05:34:56 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