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From "Chris Trezzo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8923) Add -source flag to balancer usage message
Date Wed, 19 Aug 2015 17:52:46 GMT
Chris Trezzo created HDFS-8923:

             Summary: Add -source flag to balancer usage message
                 Key: HDFS-8923
                 URL: https://issues.apache.org/jira/browse/HDFS-8923
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Chris Trezzo
            Assignee: Chris Trezzo
            Priority: Trivial

HDFS-8826 added a -source flag to the balancer, but the usage message still needs to be updated.
See current usage message in trunk:
   private static final String USAGE = "Usage: hdfs balancer"
       + "\n\t[-policy <policy>]\tthe balancing policy: "
       + BalancingPolicy.Node.INSTANCE.getName() + " or "
       + BalancingPolicy.Pool.INSTANCE.getName()
       + "\n\t[-threshold <threshold>]\tPercentage of disk capacity"
       + "\n\t[-exclude [-f <hosts-file> | <comma-separated list of hosts>]]"
       + "\tExcludes the specified datanodes."
       + "\n\t[-include [-f <hosts-file> | <comma-separated list of hosts>]]"
       + "\tIncludes only the specified datanodes."
       + "\n\t[-idleiterations <idleiterations>]"
       + "\tNumber of consecutive idle iterations (-1 for Infinite) before "
       + "exit."
       + "\n\t[-runDuringUpgrade]"
       + "\tWhether to run the balancer during an ongoing HDFS upgrade."
       + "This is usually not desired since it will not affect used space "
       + "on over-utilized machines.";

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