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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7636) TestDistributedLogSplitting#testThreeRSAbort fails against hadoop 2.0
Date Fri, 12 Apr 2013 18:34:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13630453#comment-13630453

Colin Patrick McCabe commented on HBASE-7636:

I was not able to find any HDFS logs attached (but maybe I didn't look in the right place?)
 If you can find where the test puts those, your answer is almost certainly in there.  And
it's almost certainly a configuration problem.

In general, configuring short circuit reads is complex.  For old-style short-circuit reads,
you need to set up special permissions on your DataNode storage directories.  You also need
to specify the right user for {{dfs.block.local-path-access.user}}.  For new-style short-circuit
reads, you need to have {{libhadoop.so}} installed, and possibly be running with the native
profile {{-Pnative}} so that Maven will set up {{LD_LIBRARY_PATH}} correctly.  Then you need
to set a valid socket path.

It's probably best to wait until we finish merging the HDFS-347 branch (vote was successful,
now we just need to do the work in svn), and then I'll help you set up the conf for this test.
 You probably want to have a fallback for if native code is not enabled.
> TestDistributedLogSplitting#testThreeRSAbort fails against hadoop 2.0
> ---------------------------------------------------------------------
>                 Key: HBASE-7636
>                 URL: https://issues.apache.org/jira/browse/HBASE-7636
>             Project: HBase
>          Issue Type: Sub-task
>          Components: hadoop2, test
>    Affects Versions: 0.95.0
>            Reporter: Ted Yu
>            Assignee: Jonathan Hsieh
>             Fix For: 0.98.0, 0.95.1
>         Attachments: hbase-7636.v2.patch, hbase-7636.v3.patch
> From https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/364/testReport/org.apache.hadoop.hbase.master/TestDistributedLogSplitting/testThreeRSAbort/
> {code}
> 2013-01-21 11:49:34,276 DEBUG [MASTER_SERVER_OPERATIONS-juno.apache.org,57966,1358768818594-0]
client.HConnectionManager$HConnectionImplementation(956): Looked up root region location,
connection=hconnection 0x12f19fe; serverName=juno.apache.org,55531,1358768819479
> 2013-01-21 11:49:34,278 INFO  [MASTER_SERVER_OPERATIONS-juno.apache.org,57966,1358768818594-0]
catalog.CatalogTracker(576): Failed verification of .META.,,1 at address=juno.apache.org,57582,1358768819456;
org.apache.hadoop.hbase.ipc.HBaseClient$FailedServerException: This server is in the failed
servers list: juno.apache.org/
> {code}

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