Chris Trezzo created HDFS-8923:
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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:
{code}
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.";
{code}
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