Bug 1144423

Summary:	DHT + rebalance :- log is full of warning 'dict is NULL'
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Rachana Patel <racpatel>
Component:	distribute	Assignee:	Nithya Balachandran <nbalacha>
Status:	CLOSED ERRATA	QA Contact:	amainkar
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rhgs-3.0	CC:	nbalacha, nsathyan, shmohan, ssamanta, surs, vagarwal
Target Milestone:	---	Keywords:	ZStream
Target Release:	RHGS 3.0.3
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glusterfs-3.6.0.31-1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1155172 1168551 (view as bug list)		Environment:
Last Closed:	2015-01-15 13:40:05 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:	1155172, 1162694, 1168551

Description Rachana Patel 2014-09-19 11:00:37 UTC

Description of problem:
=======================
rebalance log is full of warning as below

[2014-09-19 18:25:44.789690] W [dict.c:480:dict_unref] (-->/lib64/libc.so.6() [0x3a6be43bf0] (-->/usr/lib64/libglusterfs.so.0(synctask_wrap+0x12) [0x30ddc5ba62] (-->/usr/lib64/glusterfs/3.6.0.28/xlator/cluster/distribute.so(dht_migrate_file+0x43f) [0x7f7e56f6cf2f]))) 0-dict: dict is NULL

had arounf 124 files and gor this warning for 100+ times.

Version-Release number of selected component (if applicable):
=============================================================
3.6.0.28-1.el6rhs.x86_64

How reproducible:
=================
always

Steps to Reproduce:
===================
1.create distribiued volume , start and mount volume. crete data.
2. ass-brick to volume or perform few renames
3. start rebalance.
4. once rebalance is completed check log.

[root@snapshot09 down]# grep 'dict is NULL' /var/log/glusterfs/down-rebalance.log  | wc -l
124

log snippet:-
[2014-09-19 18:25:44.601465] W [dict.c:480:dict_unref] (-->/lib64/libc.so.6() [0x3a6be43bf0] (-->/usr/lib64/libglusterfs.so.0(synctask_wrap+0x12) [0x30ddc5ba62] (-->/usr/lib64/glusterfs/3.6.0.28/xlator/cluster/distribute.so(dht_migrate_file+0x2a6) [0x7f7e56f6cd96]))) 0-dict: dict is NULL
[2014-09-19 18:25:44.634925] W [dict.c:480:dict_unref] (-->/lib64/libc.so.6() [0x3a6be43bf0] (-->/usr/lib64/libglusterfs.so.0(synctask_wrap+0x12) [0x30ddc5ba62] (-->/usr/lib64/glusterfs/3.6.0.28/xlator/cluster/distribute.so(dht_migrate_file+0x43f) [0x7f7e56f6cf2f]))) 0-dict: dict is NULL
[2014-09-19 18:25:44.690666] W [dict.c:480:dict_unref] (-->/lib64/libc.so.6() [0x3a6be43bf0] (-->/usr/lib64/libglusterfs.so.0(synctask_wrap+0x12) [0x30ddc5ba62] (-->/usr/lib64/glusterfs/3.6.0.28/xlator/cluster/distribute.so(dht_migrate_file+0x2a6) [0x7f7e56f6cd96]))) 0-dict: dict is NULL

Comment 4 shylesh 2014-12-15 10:59:07 UTC

Verified on 3.6.0.38-1.el6rhs.x86_64
Now 'dict is NULL' doesn't appear in rebalance logs

Comment 6 errata-xmlrpc 2015-01-15 13:40:05 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/RHBA-2015-0038.html