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Bug 1250073 - redis fails to start when db is 0 bytes
Summary: redis fails to start when db is 0 bytes
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: resource-agents
Version: 7.1
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: ---
Assignee: Fabio Massimo Di Nitto
QA Contact: Asaf Hirshberg
URL:
Whiteboard:
Depends On: 1231032
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-08-04 13:00 UTC by Jan Kurik
Modified: 2015-09-15 09:38 UTC (History)
10 users (show)

Fixed In Version: resource-agents-3.9.5-40.el7_1.7
Doc Type: Bug Fix
Doc Text:
When a cluster node fails, the /var/lib/redis/dump.rdb database file in some cases changes its size to 0 bytes. Previously, when this happened, the Redis Open Clustering Framework (OCF) resource agent did not start correctly. This update ensures that in the described situation, Redis automatically clears the corrupted database file and resynchronizes the remaining Redis instances in the cluster. As a result, Redis starts as expected.
Clone Of: 1231032
Environment:
Last Closed: 2015-09-15 09:38:00 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
cat /var/log | grep redis (5.36 KB, text/plain)
2015-08-12 09:21 UTC, Asaf Hirshberg 		no flags Details
redis.log (51.37 KB, text/plain)
2015-08-26 10:58 UTC, Asaf Hirshberg 		no flags Details
redis.log (51.37 KB, text/plain)
2015-08-26 11:00 UTC, Asaf Hirshberg 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:1791 0 normal SHIPPED_LIVE resource-agents bug fix and enhancement update 2015-09-15 13:36:49 UTC

Description Jan Kurik 2015-08-04 13:00:39 UTC 
This bug has been copied from bug #1231032 and has been proposed
to be backported to 7.1 z-stream (EUS).
Comment 5 Asaf Hirshberg 2015-08-12 09:21:09 UTC 
Created attachment 1061889 [details]
cat /var/log | grep redis
Comment 9 Asaf Hirshberg 2015-08-26 10:57:46 UTC 
Verified,


[root@overcloud-controller-2 ~]# rpm -qa |grep resource
resource-agents-3.9.5-40.el7_1.7.x86_64

1. rm /var/lib/redis/dump.rdb && touch /var/lib/redis/dump.rdb
2. Verify the redis agent successfully starts on that node.

[root@overcloud-controller-2 ~]# pcs status
Cluster name: tripleo_cluster
....
Master/Slave Set: redis-master [redis]
     Masters: [ overcloud-controller-0 ]
     Slaves: [ overcloud-controller-1 overcloud-controller-2 ]
....

redis logs attached
Comment 10 Asaf Hirshberg 2015-08-26 10:58:47 UTC 
Created attachment 1067222 [details]
redis.log
Comment 11 Asaf Hirshberg 2015-08-26 11:00:07 UTC 
Created attachment 1067225 [details]
redis.log
Comment 14 errata-xmlrpc 2015-09-15 09:38:00 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-2015-1791.html
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