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https://issues.apache.org/jira/browse/HADOOP-5161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12670293#action_12670293
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dhruba borthakur commented on HADOOP-5161:
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In the 0.18 branch, there is a call to childSockets.put(s, s) in the
constructor of DataXceiver. I guess it might have got removed when the re-org
of source code happened. This could cause some unit tests to fail, especially
those unit tests that create/delete multiple instances of datanode.
> Accepted sockets do not get placed in DataXceiverServer#childSockets
> --------------------------------------------------------------------
>
> Key: HADOOP-5161
> URL: https://issues.apache.org/jira/browse/HADOOP-5161
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Hairong Kuang
> Fix For: 0.21.0
>
>
> DAtaXceiver#childSockets is a map that keeps track of all open sockets that
> are accepted by DataXceiverServer but no socket does get added to this map.
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