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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3505) omissions in HOD documentation
Date Thu, 19 Jun 2008 10:59:46 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12606327#action_12606327

Hemanth Yamijala commented on HADOOP-3505:

Actually changes in Hadoop 0.18 now allow HOD to take relative paths on the command line.
Likewise, if an incorrect conf is present, the errors are reported back to the client. However,
we should document that the tarball should not contain a modified conf, so that users know
this proactively.

In addition to the above, the following changes are identified after reviewing the bugs fixed
for HOD in Hadoop 0.18:
- HADOOP-3376: Hyperlink Maui in the documentation, crediting Cluster Resources for the software.
Also, Torque and Maui should be capitalized in the documentation.
- HADOOP-3464: Add 2 new error scenarios in the trouble shooting section. One should describe
the error that comes when ringmaster fails, the other when the jobtracker fails. For the latter,
we should mention that administrators can review other log messages in the ringmaster log
to see which other machines had problems bringing up the jobtracker, apart from the one that
is reported on the command line.
- HADOOP-3483: Remove any limitations we have specified about creating a cluster directory.
Now, we create it automatically.
- HADOOP-3184: Document in the Config guide about ringmaster.max-master-failures parameter.

> omissions in HOD documentation
> ------------------------------
>                 Key: HADOOP-3505
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3505
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: contrib/hod, documentation
>            Reporter: Ari Rabkin
>            Assignee: Hemanth Yamijala
>            Priority: Blocker
>             Fix For: 0.18.0
> There's a couple HOD limitations that really trip up the unwary.
> Two I've encountered are that  hod can't take relative paths on the command line, and
that if you pass hod a tarball with a modified /conf, then the cluster will fail mysteriously
to be initialized.
> I don't see any references to either in the documentation, and it'd be great to write
this down.

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