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https://issues.apache.org/jira/browse/HADOOP-7317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13090389#comment-13090389
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Uma Maheswara Rao G commented on HADOOP-7317:
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Hi Todd,
Any comments on this?
> RPC.stopProxy doesn't actually close proxy
> ------------------------------------------
>
> Key: HADOOP-7317
> URL: https://issues.apache.org/jira/browse/HADOOP-7317
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Fix For: 0.22.0
>
>
> Discovered while investigating HDFS-1965, it turns out that the
> reference-counting done in WritableRpcEngine.ClientCache doesn't map
> one-to-one with open TCP connections. This means that it's easy to
> accidentally leave TCP connections open longer than expected so long as the
> client has any other connections open at all.
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