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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7708) Balancer should delete its pid file when it completes rebalance
Date Fri, 30 Jan 2015 02:46:34 GMT
Akira AJISAKA created HDFS-7708:
-----------------------------------

             Summary: Balancer should delete its pid file when it completes rebalance
                 Key: HDFS-7708
                 URL: https://issues.apache.org/jira/browse/HDFS-7708
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: balancer & mover
    Affects Versions: 2.6.0
            Reporter: Akira AJISAKA


When balancer completes rebalance and exits, it does not delete its pid file. Starting balancer
again, then "kill -0 pid" to confirm the process is running.

The problem is:
* If another process is running as the same pid as `cat pidfile`, balancer fails to start
with following message:
{code}
  balancer is running as process 3443. Stop it first.
{code}



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