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From "Jonathan Hsieh (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-8337) Investigate why disabling hadoop short circuit read is required to make recovery tests pass consistently under hadoop2
Date Mon, 06 May 2013 22:50:17 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Hsieh resolved HBASE-8337.
-----------------------------------

       Resolution: Later
    Fix Version/s:     (was: 0.95.1)

Using Colin's explaination to close the issue -- hadoop2's SCR doesn't fall back to normal
access after a failure like hadoop1's.  Should be fixed when we move to hadoop-2.0.5.
                
> 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
>
> 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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