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https://issues.apache.org/jira/browse/HADOOP-9924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
shanyu zhao updated HADOOP-9924:
--------------------------------
Attachment: HADOOP-9924.addendum.patch
There is a corner case the previous patch does not handler correctly. When
there's empty string included in the classpath, "new Path(classPathEntry)" will
through an exception.
The manifest of this problem is that when you try to run a pig job, the job
will fail because the application master is failed to start.
The addendum patch will handle the empty string scenario. Unit test cases are
updated to test this scenario as well.
> FileUtil.createJarWithClassPath() does not generate relative classpath
> correctly
> --------------------------------------------------------------------------------
>
> Key: HADOOP-9924
> URL: https://issues.apache.org/jira/browse/HADOOP-9924
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.1.0-beta, 0.23.9
> Reporter: shanyu zhao
> Assignee: shanyu zhao
> Fix For: 2.1.1-beta
>
> Attachments: HADOOP-9924-2.patch, HADOOP-9924-3.patch,
> HADOOP-9924-4.patch, HADOOP-9924.addendum.patch, HADOOP-9924.patch
>
>
> On Windows, FileUtil.createJarWithClassPath() is called to generate a
> manifest jar file to pack classpath - to avoid the problem of classpath being
> too long.
> However, the relative classpath is not handled correctly. It relies on Java's
> File(relativePath) to resolve the relative path. But it really should be
> using the given pwd parameter to resolve the relative path.
> To reproduce this bug, you can try some pig job on Windows, it will fail and
> the pig log on the application master will look like this:
> 2013-08-29 23:25:55,498 INFO [main]
> org.apache.hadoop.service.AbstractService: Service
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster failed in state INITED; cause:
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException:
> java.lang.RuntimeException: java.lang.ClassNotFoundException: Class
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat
> not found
> org.apache.hadoop.yarn.exceptions.YarnRuntimeException:
> java.lang.RuntimeException: java.lang.ClassNotFoundException: Class
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat
> not found
> This is because the PigOutputFormat class is in the job.jar file but the
> classpath manifest has:
> file:/c:/apps/dist/hadoop-2.1.0-beta/bin/job.jar/job.jar
> When it really should be:
> file:/<job container folder>/job.jar/job.jar
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