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Date: Wed, 1 Jun 2011 00:42:47 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-7121) Exceptions while serializing IPC
 call response are not handled well
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     [ https://issues.apache.org/jira/browse/HADOOP-7121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated HADOOP-7121:
--------------------------------

    Status: Patch Available  (was: Open)

> Exceptions while serializing IPC call response are not handled well
> -------------------------------------------------------------------
>
>                 Key: HADOOP-7121
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7121
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Critical
>              Labels: newbie
>             Fix For: 0.22.0
>
>         Attachments: hadoop-7121.txt
>
>
> We had a situation where for some reason the serialization of an RPC call's response was throwing OOME. When this happens, the exception is not caught, and the call never gets a response - the client just hangs. Additionally, the OOME propagated all the way to the top of the IPC handler and caused the handler. Plus, the Handler upon exit only logged to stdout and not to the log4j logs.

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