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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-12559) Provide LoadBalancer with online configuration capability
Date Sun, 23 Nov 2014 15:11:12 GMT

     [ https://issues.apache.org/jira/browse/HBASE-12559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-12559:
---------------------------
    Description: 
StochasticLoadBalancer has many knobs which user can adjust.
It would increase productivity by allowing StochasticLoadBalancer to accept online configuration
changes.

LoadBalancer already implements setConf(Configuration) method which reloads relevant configuration
parameters.
We need to add updateMasterConfiguration() method to Admin which invokes the setConf() method.

  was:
StochasticLoadBalancer has many knobs which user can adjust.
It would increase productivity by allowing StochasticLoadBalancer to accept online configuration
changes.

StochasticLoadBalancer should implement PropagatingConfigurationObserver and reload relevant
configuration parameters in onConfigurationChange() method.


> Provide LoadBalancer with online configuration capability
> ---------------------------------------------------------
>
>                 Key: HBASE-12559
>                 URL: https://issues.apache.org/jira/browse/HBASE-12559
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>             Fix For: 2.0.0
>
>         Attachments: 12559-v1.txt
>
>
> StochasticLoadBalancer has many knobs which user can adjust.
> It would increase productivity by allowing StochasticLoadBalancer to accept online configuration
changes.
> LoadBalancer already implements setConf(Configuration) method which reloads relevant
configuration parameters.
> We need to add updateMasterConfiguration() method to Admin which invokes the setConf()
method.



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