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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3649) Allow configurable prefix for hbase table names (like prod, exp, test etc)
Date Thu, 18 Aug 2016 11:23:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-3649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15426288#comment-15426288
] 

Varun Saxena commented on YARN-3649:
------------------------------------

In my personal opinion, default values should be such that they can be directly used on a
production cluster until and unless they depend on deployment i.e. network, queue config,
which feature to enable/disable, etc.
Or some config which you know, works well for your deployment. Config change should be minimum
once the feature is enabled.

Take for instance, {{yarn.nodemanager.delete.debug-delay.sec}}. This is mainly a debug config
to be used in a non production cluster. But default value for it is 0.

As ours is an alpha quality feature release, dev makes sense in the short term but prod might
make more sense in the longer term IMO.
Let us see what others think of it.

BTW, you have missed the test class in the latest patch.
Other than that patch at a high level looks fine.

> Allow configurable prefix for hbase table names (like prod, exp, test etc)
> --------------------------------------------------------------------------
>
>                 Key: YARN-3649
>                 URL: https://issues.apache.org/jira/browse/YARN-3649
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelineserver
>            Reporter: Vrushali C
>            Assignee: Vrushali C
>              Labels: YARN-5355
>         Attachments: YARN-3649-YARN-2928.01.patch, YARN-3649-YARN-5355.002.patch, YARN-3649-YARN-5355.01.patch
>
>
> As per [~jrottinghuis]'s suggestion in YARN-3411, it will be a good idea to have a configurable
prefix for hbase table names.  
> This way we can easily run a staging, a test, a production and whatever setup in the
same HBase instance / without having to override every single table in the config.
> One could simply overwrite the default prefix and you're off and running.
> For prefix, potential candidates are "tst" "prod" "exp" etc. Once can then still override
one tablename if needed, but managing one whole setup will be easier.



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