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Posted to mapreduce-issues@hadoop.apache.org by "Sangjin Lee (JIRA)" <ji...@apache.org> on 2013/05/10 01:32:13 UTC

[jira] [Updated] (MAPREDUCE-5232) log classpath and other key properties on child JVM start

     [ https://issues.apache.org/jira/browse/MAPREDUCE-5232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sangjin Lee updated MAPREDUCE-5232:
-----------------------------------

    Attachment: MAPREDUCE-5232-branch-2.patch

Patch for branch-2
                
> 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
>         Attachments: MAPREDUCE-5232-branch-2.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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