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From "Karan Mehta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18117) Increase resiliency by allowing more parameters for online config change
Date Fri, 26 May 2017 21:18:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16026864#comment-16026864
] 

Karan Mehta commented on HBASE-18117:
-------------------------------------

Another potential issue is to ensure that future uses of the online parameter will implement
the {{ConfigurationObserver}}. I couldn't find any such enforcement in the current framework.
Could you please confirm?
[~gaurav.menghani]

> Increase resiliency by allowing more parameters for online config change
> ------------------------------------------------------------------------
>
>                 Key: HBASE-18117
>                 URL: https://issues.apache.org/jira/browse/HBASE-18117
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Karan Mehta
>            Assignee: Karan Mehta
>
> HBASE-8544 adds the feature to change config online without having a server restart.
This JIRA is to work on new parameters for the utilizing that feature.
> As [~apurtell] suggested, following are the useful and frequently changing parameters
in production.
> - RPC limits, timeouts, and other performance relevant settings
> - Replication limits and batch sizes
> - Region carrying limit
> - WAL retention and cleaning parameters
> I will try to make the RPC timeout parameter online as a part of this JIRA. If it seems
suitable then we can extend it to other params.



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