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https://issues.apache.org/jira/browse/HADOOP-2324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12549817
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Jim Kellerman commented on HADOOP-2324:
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TestTableMapReduce failed in Hadoop-Patch #1303 - investigating
> [hbase] Fix assertion failures in TestTableMapReduce
> ----------------------------------------------------
>
> Key: HADOOP-2324
> URL: https://issues.apache.org/jira/browse/HADOOP-2324
> Project: Hadoop
> Issue Type: Bug
> Components: contrib/hbase
> Affects Versions: 0.16.0
> Reporter: Jim Kellerman
> Assignee: Jim Kellerman
> Priority: Minor
> Fix For: 0.16.0
>
>
> TestTableMapReduce consists of two tests: a very simple one that verifies
> that it is working, and a larger test that verifies that it works when the
> table consists of multiple regions.
> There are two failure modes:
> 1) an assertion failure in the verify method
> 2) the test times out because something does not shut down cleanly.
> to figure out what is causing these failures, the first step will be to do
> copious logging in the test. Once the root cause is determined, we can
> address it.
> Unfortunately, some of the testing will have to be done via Hudson, because
> that is the only environment in which it fails. We routinely test under
> Windows, Fedora Core 6, MacOsX, and Ubuntu. Windows and Ubuntu have both
> single and dual processor configurations. FC6 and MacOS run on dual core
> machines.
> Only Hudson seems crippled enough to demonstrate these problems. (A good
> thing since they are real problems)
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