Dirkjan Bussink created ZOOKEEPER-1593:
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             Summary: Add Debian style /etc/default/zookeeper support to init 
script
                 Key: ZOOKEEPER-1593
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1593
             Project: ZooKeeper
          Issue Type: Improvement
          Components: scripts
    Affects Versions: 3.4.5
         Environment: Debian Linux 6.0
            Reporter: Dirkjan Bussink
            Priority: Minor


In our configuration we use a different data directory for Zookeeper. The 
problem is that the current Debian init.d script has the default location 
hardcoded:

ZOOPIDDIR=/var/lib/zookeeper/data
ZOOPIDFILE=${ZOOPIDDIR}/zookeeper_server.pid

By using the standard Debian practice of allowing for a /etc/default/zookeeper 
we can redefine these variables to point to the correct location:

ZOOPIDDIR=/var/lib/zookeeper/data
ZOOPIDFILE=${ZOOPIDDIR}/zookeeper_server.pid

[ -r /etc/default/zookeeper ] && . /etc/default/zookeeper

This currently can't be done through /usr/libexec/zkEnv.sh, since that is 
loaded before ZOOPIDDIR and ZOOPIDFILE are set. Any change there would 
therefore undo the setup made in for example /etc/zookeeper/zookeeper-env.sh.




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