[jira] [Updated] (HBASE-4884) Allow environment overrides for various HBase processes

["Ryan Thiessen (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Thiessen updated HBASE-4884:
---------------------------------

    Attachment: hbase-4884.txt
    
> 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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