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Posted to common-dev@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2008/09/24 16:36:44 UTC
[jira] Created: (HADOOP-4263) NPE in text.encode when writing an
invalid(?) JobProfile
NPE in text.encode when writing an invalid(?) JobProfile
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Key: HADOOP-4263
URL: https://issues.apache.org/jira/browse/HADOOP-4263
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Reporter: Steve Loughran
Priority: Minor
I see an NPE in one of my tests in Text.encode(String), further up the stack is JobProfile.write(), which appears to write a null user
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[jira] Commented: (HADOOP-4263) NPE in text.encode when writing an
invalid(?) JobProfile
Posted by "Steve Loughran (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12634154#action_12634154 ]
Steve Loughran commented on HADOOP-4263:
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stack trace. It looks like JobProfile.user is null
08/09/24 15:28:36 [IPC Server handler 6 on 8012] INFO ipc.Server : IPC Server handler 6 on 8012 caught: java.lang.NullPointerException
at org.apache.hadoop.io.Text.encode(Text.java:388)
at org.apache.hadoop.io.Text.encode(Text.java:369)
at org.apache.hadoop.io.Text.writeString(Text.java:409)
at org.apache.hadoop.mapred.JobProfile.write(JobProfile.java:165)
at org.apache.hadoop.io.ObjectWritable.writeObject(ObjectWritable.java:159)
at org.apache.hadoop.io.ObjectWritable.write(ObjectWritable.java:70)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:903)
Given that the NPE was caught, and throwing an exception is about the only course of action, this could be viewed as working as intended. Alternatively, JobProfile could so some better validation of data and fail with something more meaningful. But is the extra performance hit (and extra test) worth the effort?
> NPE in text.encode when writing an invalid(?) JobProfile
> --------------------------------------------------------
>
> Key: HADOOP-4263
> URL: https://issues.apache.org/jira/browse/HADOOP-4263
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Steve Loughran
> Priority: Minor
>
> I see an NPE in one of my tests in Text.encode(String), further up the stack is JobProfile.write(), which appears to write a null user
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