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https://issues.apache.org/jira/browse/HBASE-16122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353019#comment-15353019
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Konstantin Ryakhovskiy commented on HBASE-16122:
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patch added: https://reviews.apache.org/r/49316/
added try-catch block and re-throw IllegalArgumentException with more
user-friendly message.
tests are added
Is the patch appropriate and sufficient?
> 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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