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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7428) IPC connection is orphaned with null 'out' member
Date Thu, 30 Jun 2011 18:16:28 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13057964#comment-13057964
] 

Hudson commented on HADOOP-7428:
--------------------------------

Integrated in Hadoop-Common-trunk-Commit #669 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/669/])
    HADOOP-7428. IPC connection is orphaned with null 'out' member. Contributed by Todd Lipcon

eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1141638
Files : 
* /hadoop/common/trunk/common/CHANGES.txt
* /hadoop/common/trunk/common/src/test/core/org/apache/hadoop/ipc/TestIPC.java
* /hadoop/common/trunk/common/src/java/org/apache/hadoop/ipc/Client.java


> IPC connection is orphaned with null 'out' member
> -------------------------------------------------
>
>                 Key: HADOOP-7428
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7428
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hadoop-7428.txt
>
>
> We had a situation a JT ended up in a state where a certain user could not submit a job,
due to an NPE on the following line in {{sendParam}}:
> {code}
> synchronized (Connection.this.out) {
> {code}
> Looking at the code, my guess is that an RTE was thrown in setupIOstreams, which only
catches IOE. This could leave the connection in a half-setup state which is never cleaned
up and also cannot perform IPCs.

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