Reed Wanderman-Milne created ZOOKEEPER-1991:
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Summary: zkServer.sh returns with a zero exit status when a
ZooKeeper process is already running
Key: ZOOKEEPER-1991
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1991
Project: ZooKeeper
Issue Type: Bug
Components: scripts
Affects Versions: 3.4.6
Reporter: Reed Wanderman-Milne
Priority: Minor
If ZooKeeper is started with zkServer.sh, and an error is shown that a
ZooKeeper process is already running, the command returns with an exit status
of 0, while it should end with a non-zero exit status.
Example:
$ bin/zkServer.sh start
JMX enabled by default
Using config: /home/reed/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... already running as process 25063.
$ echo $?
0
This can make it difficult for automated scripts to check if creating a new
ZooKeeper process was successful, as it won't catch if a user accidentally
started it before.
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