Details
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Bug
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Status: Resolved
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Trivial
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Resolution: Fixed
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None
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None
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Reviewed
Description
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.";