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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3537) Datanode not starting up with java.lang.StringIndexOutOfBoundsException in NetworkTopology.remove
Date Fri, 20 Jun 2008 01:01:47 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12606608#action_12606608
] 

Hadoop QA commented on HADOOP-3537:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12384323/unresolvedDatanode.patch
  against trunk revision 669646.

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

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no tests are needed for this patch.

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

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

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

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

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

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

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2702/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2702/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2702/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2702/console

This message is automatically generated.

> Datanode not starting up with  java.lang.StringIndexOutOfBoundsException in NetworkTopology.remove
> --------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3537
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3537
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Koji Noguchi
>            Assignee: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.18.0
>
>         Attachments: unresolvedDatanode.patch
>
>
> When we brought up one of our clusters, couple of datanodes failed to start up with this
error messages on the log.
> 2008-06-11 17:25:06,418 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: Initializing JVM
Metrics with processName=DataNode, sessionId=null
> 2008-06-11 17:26:06,748 INFO org.apache.hadoop.dfs.DataNode: Problem connecting to server:
namenode/11.111.11.111:8020
> 2008-06-11 17:27:07,763 INFO org.apache.hadoop.dfs.DataNode: Problem connecting to server:
namenode/11.111.11.111:8020
> 2008-06-11 17:28:08,778 INFO org.apache.hadoop.dfs.DataNode: Problem connecting to server:
namenode/11.111.11.111:8020
> 2008-06-11 17:29:09,793 INFO org.apache.hadoop.dfs.DataNode: Problem connecting to server:
namenode/11.111.11.111:8020
> 2008-06-11 17:29:43,235 ERROR org.apache.hadoop.dfs.DataNode: org.apache.hadoop.ipc.RemoteException:
java.io.IOException: java.lang.StringIndexOutOfBoundsException: String index out of range:
-1
>   at java.lang.String.substring(String.java:1938)
>   at java.lang.String.substring(String.java:1905)
>   at org.apache.hadoop.net.NetworkTopology$InnerNode.getNextAncestorName(NetworkTopology.java:119)
>   at org.apache.hadoop.net.NetworkTopology$InnerNode.remove(NetworkTopology.java:201)
>   at org.apache.hadoop.net.NetworkTopology.remove(NetworkTopology.java:354)
>   at org.apache.hadoop.dfs.FSNamesystem.registerDatanode(FSNamesystem.java:2071)
>   at org.apache.hadoop.dfs.NameNode.register(NameNode.java:536)
>   at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source)
>   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>   at java.lang.reflect.Method.invoke(Method.java:597)
>   at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:446)
>   at org.apache.hadoop.ipc.Server$Handler.run(Server.java:896)
>   at org.apache.hadoop.ipc.Client.call(Client.java:557)
>   at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:212)
>   at org.apache.hadoop.dfs.$Proxy4.register(Unknown Source)
>   at org.apache.hadoop.dfs.DataNode.register(DataNode.java:456)
>   at org.apache.hadoop.dfs.DataNode.runDatanodeDaemon(DataNode.java:2694)
>   at org.apache.hadoop.dfs.DataNode.createDataNode(DataNode.java:2729)
>   at org.apache.hadoop.dfs.DataNode.main(DataNode.java:2850)

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