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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6073) Unchecked exception thrown inside of BlockReceiver cause some threads hang
Date Wed, 17 Jun 2009 21:42:07 GMT
Unchecked exception thrown inside of BlockReceiver cause some threads hang
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                 Key: HADOOP-6073
                 URL: https://issues.apache.org/jira/browse/HADOOP-6073
             Project: Hadoop Core
          Issue Type: Bug
            Reporter: Konstantin Boudnik
         Attachments: copy.txt.log, 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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