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From "Ryan Thiessen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4884) Allow environment overrides for various HBase processes
Date Tue, 29 Nov 2011 04:47:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159081#comment-13159081

Ryan Thiessen commented on HBASE-4884:

I don't know what this means in the context of my patch.  I am pretty sure that I didn't generate
162 warning messages, or 67 new bugs, or make three core tests fail.
> Allow environment overrides for various HBase processes
> -------------------------------------------------------
>                 Key: HBASE-4884
>                 URL: https://issues.apache.org/jira/browse/HBASE-4884
>             Project: HBase
>          Issue Type: Improvement
>          Components: shell
>            Reporter: Ryan Thiessen
>            Priority: Minor
>         Attachments: hbase-4884.txt
>   Original Estimate: 0h
>  Remaining Estimate: 0h
> The current shell scripts have no mechanism for granting different environments to various
HBase subcomponents.  Sometimes we want to customize these, for example to run the thrift
command with a lower HBASE_HEAPSIZE than what we grant the regionservers.
> Checking for the presence of an override file and then sourcing it if present allows
me to override this heapsize or any other variable.
> Test process:
> * tested with file missing. no problem, used default conf/hbase-env.sh settings.
> * tested with conf/hbase-env-thrift.sh file with heap size of 1234. ps axww showed -Xmx1234m
> * started regionserver using bin/hadoop-daemon.sh
> * started hbase shell
> * ran some jruby scripts via bin/hbase org.jruby.Main
> * running in production for approx 2 weeks.

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