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https://issues.apache.org/jira/browse/MAPREDUCE-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13905007#comment-13905007
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Sangjin Lee commented on MAPREDUCE-5232:
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[~vinodkv], I was browsing the branch-2 branch, and found that this was not
merged to branch-2 (it is merged to trunk, however). Could you kindly merge
this to branch-2 too? Let me know if you need anything from me on this. Thanks!
> log classpath and other key properties on child JVM start
> ---------------------------------------------------------
>
> Key: MAPREDUCE-5232
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5232
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv1, mrv2
> Affects Versions: 2.0.4-alpha
> Reporter: Sangjin Lee
> Assignee: Sangjin Lee
> Fix For: 3.0.0
>
> Attachments: MAPREDUCE-5232-branch-2.patch,
> MAPREDUCE-5232-branch-2.patch, MAPREDUCE-5232-branch-2.patch,
> MAPREDUCE-5232.patch, MAPREDUCE-5232.patch, MAPREDUCE-5232.patch
>
>
> It would be great if we log vital information such as classpath, etc. upon a
> mapreduce child JVM start. This would help a great deal in terms of
> troubleshooting classpath issues, etc. Today it is pretty difficult to debug
> this unless you preserve the container script.
> Maybe it can log things like classpath, os name/version, java version, etc.
> at the beginning of the child JVM start.
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