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Posted to dev@zookeeper.apache.org by "Yasuhito Fukuda (JIRA)" <ji...@apache.org> on 2015/05/20 11:39:00 UTC
[jira] [Created] (ZOOKEEPER-2193) reconfig command completes even
if parameter is wrong obviously
Yasuhito Fukuda created ZOOKEEPER-2193:
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Summary: reconfig command completes even if parameter is wrong obviously
Key: ZOOKEEPER-2193
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2193
Project: ZooKeeper
Issue Type: Bug
Components: leaderElection, server
Affects Versions: 3.5.0
Environment: CentOS7 + Java7
Reporter: Yasuhito Fukuda
Even if reconfig parameter is wrong, it was confirmed to complete.
refer to the following.
- Ensemble consists of four nodes
{noformat}
[zk: vm-101:2181(CONNECTED) 0] config
server.1=192.168.100.101:2888:3888:participant
server.2=192.168.100.102:2888:3888:participant
server.3=192.168.100.103:2888:3888:participant
server.4=192.168.100.104:2888:3888:participant
version=100000000
{noformat}
- add node by reconfig
{noformat}
[zk: vm-101:2181(CONNECTED) 9] reconfig -add server.5=192.168.100.104:2888:3888:participant;0.0.0.0:2181
Committed new configuration:
server.1=192.168.100.101:2888:3888:participant
server.2=192.168.100.102:2888:3888:participant
server.3=192.168.100.103:2888:3888:participant
server.4=192.168.100.104:2888:3888:participant
server.5=192.168.100.104:2888:3888:participant;0.0.0.0:2181
version=300000007
{noformat}
server.4 and server.5 of the IP address is a duplicate.
In this state, reader election will not work properly.
Besides, it is assumed an ensemble will be undesirable state.
I think that need a parameter validation when reconfig.
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