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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5859) FindBugs : fix "wait() or sleep() with locks held" warnings in hdfs
Date Tue, 02 Jun 2009 17:55:07 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715605#action_12715605
] 

Kan Zhang commented on HADOOP-5859:
-----------------------------------

After discussing with Raghu, I'm uploading a new patch where a new flag is added so that end-of-block
is sent only when all data has been sent and ack'ed from datanode.

This patch doesn't include any new test since it's only a refactoring and no new feature is
added.

> FindBugs : fix "wait() or sleep() with locks held" warnings in hdfs
> -------------------------------------------------------------------
>
>                 Key: HADOOP-5859
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5859
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: 5859-21.patch, 5859-22.patch, 5859-26.patch, 5859-33.patch, 5859-35.patch,
5859-36.patch, 5859-38.patch, 5859-4.patch, 5859-5.patch, 5859-8.patch
>
>
> This JIRA fixes the following warnings:
> SWL	org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.closeInternal() calls Thread.sleep()
with a lock held
> TLW	wait() with two locks held in org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.flushInternal()
> TLW	wait() with two locks held in org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.flushInternal()
> TLW	wait() with two locks held in org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.writeChunk(byte[],
int, int, byte[])

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