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https://issues.apache.org/jira/browse/HADOOP-309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12469306
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Hadoop QA commented on HADOOP-309:
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-1, because the patch command could not apply the latest attachment
(http://issues.apache.org) as a patch to trunk revision r502030. Please note
that this message is automatically generated and may represent a problem with
the automation system and not the patch.
> NullPointerException in StatusHttpServer
> ----------------------------------------
>
> Key: HADOOP-309
> URL: https://issues.apache.org/jira/browse/HADOOP-309
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.10.1
> Reporter: Konstantin Shvachko
> Assigned To: navychen
> Priority: Minor
> Fix For: 0.10.1
>
> Attachments: 309.patch
>
>
> The NullPointerException happens in the constructor of StatusHttpServer
> because the System property "hadoop.log.dir" is undefined.
> I see it trying to start the Namenode directly without using any scripts.
> Exception in thread "main" java.lang.NullPointerException
> at org.mortbay.util.Resource.newResource(Resource.java:99)
> at
> org.mortbay.http.ResourceCache.setResourceBase(ResourceCache.java:140)
> at org.mortbay.http.HttpContext.setResourceBase(HttpContext.java:2207)
> at
> org.apache.hadoop.mapred.StatusHttpServer.<init>(StatusHttpServer.java:66)
> at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:172)
> at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:97)
> at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:88)
> at org.apache.hadoop.dfs.NameNode.main(NameNode.java:496)
> In general I think the sources should not rely on the system properties and
> environment variables defined in hadoop scripts.
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