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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3541) Deadlock between recovery, xceiver and packet responder
Date Tue, 26 Jun 2012 05:35:44 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3541?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401184#comment-13401184
] 

Uma Maheswara Rao G commented on HDFS-3541:
-------------------------------------------

for the comment:
{quote}
2.This chunk of code confuses me, since you don't use written again after the loop, and there
doesn't seem to be any need to call write(...) many times:
{quote}
try using util APIs already available for writing data.

@Kihwal, good point, worth asserting block finalization. 
                
> Deadlock between recovery, xceiver and packet responder
> -------------------------------------------------------
>
>                 Key: HDFS-3541
>                 URL: https://issues.apache.org/jira/browse/HDFS-3541
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>    Affects Versions: 0.23.3, 2.0.1-alpha
>            Reporter: suja s
>            Assignee: Vinay
>         Attachments: DN_dump.rar, HDFS-3541.patch
>
>
> Block Recovery initiated while write in progress at Datanode side. Found a lock between
recovery, xceiver and packet responder.

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