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https://issues.apache.org/jira/browse/HADOOP-4679?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hairong Kuang resolved HADOOP-4679.
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Resolution: Fixed
Fix Version/s: 0.18.3
Release Note:
1. Only datanode's offerService thread shutdown the datanode to avoid deadlock;
2. Datanode checks disk in case of failure on creating a block file.
Hadoop Flags: [Reviewed]
I just committed this.
> Datanode prints tons of log messages: Waiting for threadgroup to exit, active
> theads is XX
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-4679
> URL: https://issues.apache.org/jira/browse/HADOOP-4679
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.18.3
>
> Attachments: diskError.patch, diskError1.patch, diskError2.patch,
> diskError3-br18.patch, diskError3.patch
>
>
> When a data receiver thread sees a disk error, it immediately calls shutdown
> to shutdown DataNode. But the shutdown method does not return before all data
> receiver threads exit, which will never happen. Therefore the DataNode gets
> into a dead/live lock state, emitting tons of log messages: Waiting for
> threadgroup to exit, active threads is XX.
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