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https://issues.apache.org/jira/browse/HADOOP-2907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12572757#action_12572757
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szetszwo edited comment on HADOOP-2907 at 2/26/08 8:23 PM:
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One easy improvement: The class of DataNode.childSockets should be Set, instead
Map.
was (Author: szetszwo):
One easy improvement: The class of DataNode.childSockets should be Set or
Hashtable, instead Map.
> dead datanodes because of OutOfMemoryError
> ------------------------------------------
>
> Key: HADOOP-2907
> URL: https://issues.apache.org/jira/browse/HADOOP-2907
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.16.0
> Reporter: Christian Kunz
>
> We see more dead datanodes than in previous releases. The common exception is
> found in the out file:
> Exception in thread "[EMAIL PROTECTED]" java.lang.OutOfMemoryError: Java heap
> space
> Exception in thread "DataNode: [dfs.data.dir-value]"
> java.lang.OutOfMemoryError: Java heap space
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