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From 付盼 (JIRA) <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7689) Process cannot exit when there is many RPC readers more that actual client
Date Sun, 21 Jul 2013 07:26:49 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

付盼 updated HADOOP-7689:

    Affects Version/s:     (was: 0.21.0)
> Process cannot exit when there is many RPC readers more that actual client
> --------------------------------------------------------------------------
>                 Key: HADOOP-7689
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7689
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>            Reporter: Denny Ye
>              Labels: rpc
>         Attachments: HADOOP-7689.patch
> I met a strange issue that process cannot exit when I run RPC test cases in my Eclipse.
> Conditions:
> 1. Only one Server and one client(local)
> 2. I have set many readers(conf.setInt("ipc.server.read.threadpool.size", 5)), it great
than client number.
> After any test cases, the process cannot exit. I tested with several cases and found
the root cause.
> RPC serves socket with reader(transferring binary to Call), and even shutdown the thread
pool. But all the free readers are blocked at "readSelector.select()" (they are useless by
> Those threads and process cannot exit always.
> It can be fixed by invoking corresponding selector for each reader.The same thing was
done at 0.20 version.   

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