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Posted to notifications@accumulo.apache.org by "Christopher Tubbs (JIRA)" <ji...@apache.org> on 2013/01/02 17:12:12 UTC
[jira] [Created] (ACCUMULO-925) Launch scripts should use a PIDfile
Christopher Tubbs created ACCUMULO-925:
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Summary: Launch scripts should use a PIDfile
Key: ACCUMULO-925
URL: https://issues.apache.org/jira/browse/ACCUMULO-925
Project: Accumulo
Issue Type: Improvement
Components: scripts
Reporter: Christopher Tubbs
Assignee: Christopher Tubbs
Fix For: 1.6.0
Start scripts should create PIDfiles to store the PID of running processes in a well known location (example: /var/run/accumulo/tserver.pid or $ACCUMULO_HOME/tserver.pid), for the following benefits:
# Identify running services on a machine without executing and parsing the system process list, so stop scripts can kill them when they are unresponsive.
# Prevent multiple instances of the same application from starting up (an environment variable for the location of the PIDfile can be used to allow multiple instances if it is desirable to do so).
# Potentially provide an alternate mechanism for terminating a process by deleting its PIDfile rather than its lock in Zookeeper.
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