[jira] [Commented] (HBASE-16122) PerformanceEvaluation should provide user friendly hint when client threads argument is missing

[Ted Yu (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HBASE-16122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353111#comment-15353111
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Ted Yu commented on HBASE-16122:
--------------------------------

Please upload latest patch on this JIRA and get a QA run.

Thanks

> PerformanceEvaluation should provide user friendly hint when client threads 
> argument is missing
> -----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-16122
>                 URL: https://issues.apache.org/jira/browse/HBASE-16122
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Minor
>
> I tried to run this command:
> hbase pe --rows=10000 --nomapred --valueSize=2000000 sequentialWrite
> {code}
> java.util.NoSuchElementException
>       at java.util.LinkedList.removeFirst(LinkedList.java:270)
>       at java.util.LinkedList.remove(LinkedList.java:685)
>       at 
> org.apache.hadoop.hbase.PerformanceEvaluation.parseOpts(PerformanceEvaluation.java:2077)
>       at 
> org.apache.hadoop.hbase.PerformanceEvaluation.run(PerformanceEvaluation.java:2122)
>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
>       at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
>       at 
> org.apache.hadoop.hbase.PerformanceEvaluation.main(PerformanceEvaluation.java:2159)
> {code}
> Number of client threads argument was missing.
> PerformanceEvaluation should print user friendly message informing user of 
> the missing argument.



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