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From "Phabricator (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4916) LoadTest MR Job
Date Wed, 21 Dec 2011 23:01:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174473#comment-13174473
] 

Phabricator commented on HBASE-4916:
------------------------------------

jdcryans has commented on the revision "HBASE-4916 [jira] LoadTest MR Job".

  Doing further testing, I got this while running an online merge (that took 1721 seconds
to run because it counts parent regions):

  Exception in thread "pool-2-thread-186" java.lang.NullPointerException
  	at org.apache.hadoop.hbase.loadtest.RandomDataGenerator.verify(RandomDataGenerator.java:106)
  	at org.apache.hadoop.hbase.loadtest.GetOperation.postAction(GetOperation.java:45)
  	at org.apache.hadoop.hbase.loadtest.Operation.run(Operation.java:126)
  	at org.apache.hadoop.hbase.loadtest.Workload$Executor$BoundedExecutor$1.run(Workload.java:269)
  	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
  	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

REVISION DETAIL
  https://reviews.facebook.net/D741

                
> LoadTest MR Job
> ---------------
>
>                 Key: HBASE-4916
>                 URL: https://issues.apache.org/jira/browse/HBASE-4916
>             Project: HBase
>          Issue Type: Sub-task
>          Components: client, regionserver
>            Reporter: Nicolas Spiegelberg
>            Assignee: Christopher Gist
>             Fix For: 0.94.0
>
>         Attachments: HBASE-4916.D741.1.patch
>
>
> Add a script to start a streaming map-reduce job where each map tasks runs an instance
of the load tester for a partition of the key-space. Ensure that the load tester takes a parameter
indicating the start key for write operations.

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