Zookeeper stop fails if start called twice
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Key: ZOOKEEPER-1061
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1061
Project: ZooKeeper
Issue Type: Bug
Components: scripts
Affects Versions: 3.3.2
Reporter: Ted Dunning
Fix For: 3.3.3
The zkServer.sh script doesn't check properly to see if a previously started
server is still running. If you call start twice, the second invocation
will over-write the PID file with a process that then fails due to port
occupancy.
This means that stop will subsequently fail.
Here is a reference that describes how init scripts should normally work:
http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
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