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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1973) NPE at JobTracker startup..
Date Wed, 17 Oct 2007 07:40:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535438
] 

Hadoop QA commented on HADOOP-1973:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12367853/patch-1973.txt
against trunk revision r585366.

    @author +1.  The patch does not contain any @author tags.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests +1.  The patch passed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/961/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/961/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/961/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/961/console

This message is automatically generated.

> NPE at JobTracker startup..
> ---------------------------
>
>                 Key: HADOOP-1973
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1973
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.15.0
>            Reporter: Gautam Kowshik
>            Assignee: Amareshwari Sri Ramadasu
>            Priority: Blocker
>             Fix For: 0.15.0
>
>         Attachments: patch-1973.txt, patch-1973.txt
>
>
> At JT startup a bunch of these were thrown.. and the JT shutdown. 
> 2007-10-01 07:48:36,501 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot
find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:40205'; reinitializing
the tasktracker
> 2007-10-01 07:48:36,504 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot
find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:57935'; reinitializing
the tasktracker
> 2007-10-01 07:48:36,520 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot
find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:46305'; reinitializing
the tasktracker
> 2007-10-01 07:48:36,523 WARN org.apache.hadoop.mapred.JobTracker: Serious problem, cannot
find record of 'previous' heartbeat for '[tracker_address]:/127.0.0.1:55988'; reinitializing
the tasktracker
> 2007-10-01 07:48:36,524 INFO org.apache.hadoop.ipc.Server: IPC Server handler 28 on 50020,
call getFilesystemName() from [tracker_ip]:47361: error: java.io.IOException: java.lang.NullPointerException
> java.io.IOException: java.lang.NullPointerException
>         at org.apache.hadoop.mapred.JobTracker.getFilesystemName(JobTracker.java:1458)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:340)
>         at org.apache.hadoop.ipc.Server$Handler.run(Server.java:596)

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