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https://issues.apache.org/jira/browse/HDFS-6174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13950568#comment-13950568
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sathish commented on HDFS-6174:
-------------------------------
Actually this is happening due to the following code snippet.
{code}
if ((args.length == 0) || ("-files".equals(args[0]))) {
printUsage(System.err);
ToolRunner.printGenericCommandUsage(System.err);
}
{code}
Here actually in printUsage() method itself they are printing the generic
command usage informtion,here they added one more step for printing the
usage.so it is printing twice
> In Fsck command with zero arguments generic command usage is printing twice
> ---------------------------------------------------------------------------
>
> Key: HDFS-6174
> URL: https://issues.apache.org/jira/browse/HDFS-6174
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.3.0
> Reporter: sathish
> Assignee: sathish
> Priority: Minor
>
> While executing Fsck command if we pass zero arguments generic command usage
> is printing twice.
> if we execute the command like this ./hdfs fsck we are getting the generic
> command usage twice
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