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From "Rakesh R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8399) Erasure Coding: BlockManager is unnecessarily computing recovery work for the deleted blocks
Date Thu, 14 May 2015 18:23:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8399?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14544146#comment-14544146
] 

Rakesh R commented on HDFS-8399:
--------------------------------

It looks like test case failure is unrelated to my patch. Also, the findbugs will be handled
in HDFS-8294.

> Erasure Coding: BlockManager is unnecessarily computing recovery work for the deleted
blocks
> --------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8399
>                 URL: https://issues.apache.org/jira/browse/HDFS-8399
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>         Attachments: HDFS-8399-HDFS-7285-00.patch
>
>
> Following exception occurred in the {{ReplicationMonitor}}. As per the initial analysis,
I could see the exception is coming for the blocks of the deleted file.
> {code}
> 2015-05-14 14:14:40,485 FATAL util.ExitUtil (ExitUtil.java:terminate(127)) - Terminate
called
> org.apache.hadoop.util.ExitUtil$ExitException: java.lang.AssertionError: Absolute path
required
> 	at org.apache.hadoop.hdfs.server.namenode.INode.getPathNames(INode.java:744)
> 	at org.apache.hadoop.hdfs.server.namenode.INode.getPathComponents(INode.java:723)
> 	at org.apache.hadoop.hdfs.server.namenode.FSDirectory.getINodesInPath(FSDirectory.java:1655)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getECSchemaForPath(FSNamesystem.java:8435)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeRecoveryWorkForBlocks(BlockManager.java:1572)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeBlockRecoveryWork(BlockManager.java:1402)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3894)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3846)
> 	at java.lang.Thread.run(Thread.java:722)
> 	at org.apache.hadoop.util.ExitUtil.terminate(ExitUtil.java:126)
> 	at org.apache.hadoop.util.ExitUtil.terminate(ExitUtil.java:170)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3865)
> 	at java.lang.Thread.run(Thread.java:722)
> Exception in thread "org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor@1255079"
org.apache.hadoop.util.ExitUtil$ExitException: java.lang.AssertionError: Absolute path required
> 	at org.apache.hadoop.hdfs.server.namenode.INode.getPathNames(INode.java:744)
> 	at org.apache.hadoop.hdfs.server.namenode.INode.getPathComponents(INode.java:723)
> 	at org.apache.hadoop.hdfs.server.namenode.FSDirectory.getINodesInPath(FSDirectory.java:1655)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getECSchemaForPath(FSNamesystem.java:8435)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeRecoveryWorkForBlocks(BlockManager.java:1572)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeBlockRecoveryWork(BlockManager.java:1402)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.computeDatanodeWork(BlockManager.java:3894)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3846)
> 	at java.lang.Thread.run(Thread.java:722)
> 	at org.apache.hadoop.util.ExitUtil.terminate(ExitUtil.java:126)
> 	at org.apache.hadoop.util.ExitUtil.terminate(ExitUtil.java:170)
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$ReplicationMonitor.run(BlockManager.java:3865)
> 	at java.lang.Thread.run(Thread.java:722)
> {code}



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