Bug 771595

Summary:	[glusterfs-3.3.0qa19]: application hung due to blocked locks
Product:	[Community] GlusterFS	Reporter:	Raghavendra Bhat <rabhat>
Component:	replicate	Assignee:	Pranith Kumar K <pkarampu>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Raghavendra Bhat <rabhat>
Severity:	high	Docs Contact:
Priority:	high
Version:	pre-release	CC:	gluster-bugs
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.4.0	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-07-24 17:58:06 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:	glusterfs-3.3.0qa43	Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	817967

Description Raghavendra Bhat 2012-01-04 09:12:11 UTC

Description of problem:
2x2 distributed replicate volume with quota and profile enabled. 1 fuse client executing a multithreaded program. 1 nfs client executing fs-perf-test. While tests were going had done replace brick twice. The multithreaded application i(which spawns threads, with each thread opening the same file, and performing different fops on their respective fds such as read, write, fcntl locking etc) is hung. No server was brought down. Statedumps indicate that blocked locks are present.

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


How reproducible:


Steps to Reproduce:
1.
2.
3.
  
Actual results:

inodelk.inodelk[0](ACTIVE)=type=WRITE, start=9223372036854775806, len=0, pid=18446744072315678016, lk-owner=140250763177280, transport=0x23434
60, blocked at Wed Jan  4 03:26:26 2012
, granted at  Wed Jan  4 03:26:26 2012

inodelk.inodelk[1](ACTIVE)=type=WRITE, start=0, len=131072, pid=18446744073709551615, lk-owner=140250764101896, transport=0x2343460, granted a
t  Wed Jan  4 03:26:26 2012

inodelk.inodelk[2](BLOCKED)=type=WRITE, start=0, len=0, pid=18446744073709551615, lk-owner=140250764101896, transport=0x2343460, blocked at  Wed Jan  4 03:26:26 2012


Expected results:


Additional info:

Comment 1 Pranith Kumar K 2012-01-05 05:19:20 UTC

Johnny,
   Do you have the logs and statedumps of clients, bricks somewhere we can check?.
   Are you observing this issue on every run of this testcase?.

Pranith

Comment 2 Amar Tumballi 2012-03-12 09:46:59 UTC

please update these bugs w.r.to 3.3.0qa27, need to work on it as per target milestone set.

Comment 3 Anand Avati 2012-05-19 08:22:34 UTC

CHANGE: http://review.gluster.com/3370 (protocol/server: del_locker should delete one locker per unlock) merged in master by Anand Avati (avati)

Comment 4 Raghavendra Bhat 2012-05-21 07:38:04 UTC

Bug has been reproduced and patch has been submitted for this.

Comment 5 Raghavendra Bhat 2012-05-25 06:00:06 UTC

Checked with glusterfs-3.3.0qa43. And did not find the blocked inodelks.