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https://issues.apache.org/jira/browse/HADOOP-8202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13237720#comment-13237720
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Todd Lipcon commented on HADOOP-8202:
-------------------------------------
I think maintaining the ability to support mockito spies/mocks for proxies is
important. We use it for simulating all kinds of failure conditions -- I'm
surprised you didn't have a lot of HDFS failures from the same issue.
> stopproxy() is not closing the proxies correctly
> ------------------------------------------------
>
> Key: HADOOP-8202
> URL: https://issues.apache.org/jira/browse/HADOOP-8202
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 0.24.0
> Reporter: Hari Mankude
> Assignee: Hari Mankude
> Priority: Minor
> Attachments: HADOOP-8202-1.patch, HADOOP-8202-2.patch,
> HADOOP-8202.patch, HADOOP-8202.patch
>
>
> I was running testbackupnode and noticed that NNprotocol proxy was not being
> closed. Talked with Suresh and he observed that most of the protocols do not
> implement ProtocolTranslator and hence the logic in stopproxy() does not
> work. Instead, since all of them are closeable, Suresh suggested that
> closeable property should be used at close.
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