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Description of problem:

I am filing this against resource-agents and redis (starting from ras)

In case of a node failure and fencing operation, there is a chance that /var/lib/redis/dump.rdb is 0 bytes (fence during an update for example).

In that case redis will fail to start with a "short read".

redis server should ignore a 0 bytes file and resume operations IMHO.

the resource-agents should check for that condition and wipe the file since the db will be resync from the other nodes in the cluster.

upstream patch posted

https://github.com/ClusterLabs/resource-agents/pull/623

I have verified that the patch from comment #1 is included in redis resource
agent in resource-agents-3.9.5-50.el7.x86_64.

[root@virt-150 ~]# rpm -q resource-agents
resource-agents-3.9.5-50.el7.x86_64
[root@virt-150 ~]# wget -O redis.patched \
https://raw.githubusercontent.com/davidvossel/\
resource-agents/88d7714680418ba00446354aa9d5060090719ca9/heartbeat/redis
[root@virt-150 ~]# diff redis.patched /usr/lib/ocf/resource.d/heartbeat/redis
[root@virt-150 ~]# echo $?
0

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-2015-2190.html