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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-415) Unchecked exception thrown inside of BlockReceiver cause some threads hang
Date Fri, 10 Jul 2009 21:19:14 GMT

     [ https://issues.apache.org/jira/browse/HDFS-415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raghu Angadi updated HDFS-415:
------------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
           Status: Resolved  (was: Patch Available)

I just committed this. Thanks Konstantin.

> Unchecked exception thrown inside of BlockReceiver cause some threads hang
> --------------------------------------------------------------------------
>
>                 Key: HDFS-415
>                 URL: https://issues.apache.org/jira/browse/HDFS-415
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Konstantin Boudnik
>            Assignee: Konstantin Boudnik
>             Fix For: 0.21.0
>
>         Attachments: copy.txt.log, HADOOP-6073.patch, HADOOP-6073.patch, x2
>
>
> One is able to inject all sorts of faults into Hadoop's classes using new fault injection
framework (HADOOP-6003). 
> I've been injecting unchecked exception (RuntimeException) into BlockReceiver.receivePacket()
method before any
>   of write() operations (e.g. line 401, 449, 463, 529) and running some of the existing
HDFS tests. The injection of unchecked exceptions causes DataXceiver to die silently and without
any traces.
> From a debugger run it seems like some threads are being left alive or not notified about
the exception.

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