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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8337) Investigate why disabling hadoop short circuit read is required to make recovery tests pass consistently under hadoop2
Date Wed, 24 Apr 2013 20:39:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13640918#comment-13640918
] 

Andrew Purtell commented on HBASE-8337:
---------------------------------------

bq. I thought being a different user was necessary doing stuff like lease recovery and for
security testing?

We do allocate additional users for testing with various privilege grants in the security
tests.
                
> Investigate why disabling hadoop short circuit read is required to make recovery tests
pass consistently under hadoop2
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8337
>                 URL: https://issues.apache.org/jira/browse/HBASE-8337
>             Project: HBase
>          Issue Type: Sub-task
>          Components: hadoop2, test
>    Affects Versions: 0.98.0, 0.95.1
>            Reporter: Jonathan Hsieh
>            Priority: Critical
>             Fix For: 0.95.1
>
>
> HBASE-7636 makes some TestDistributedLogSplitting pass consistently by disabling hdfs
short circuit reads.  
> HBASE-8349 makes datanode node death recovery pass consistently by disabling hdfs short
circuit reads.
> This will likely require configuration modifications to fix and may have different fixes
for hadoop1, hadoop2 (HDFS-2246), and hadoop3 (HDFS-347)...

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