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Posted to issues@hbase.apache.org by "Xiaolin Ha (Jira)" <ji...@apache.org> on 2021/03/08 07:35:00 UTC

[jira] [Updated] (HBASE-25517) Support parallel balance RSGroups

     [ https://issues.apache.org/jira/browse/HBASE-25517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiaolin Ha updated HBASE-25517:
-------------------------------
    Summary: Support parallel balance RSGroups  (was: Reduce race conditions between balance of RSGroups and support concurrently balance RSGroups)

> Support parallel balance RSGroups
> ---------------------------------
>
>                 Key: HBASE-25517
>                 URL: https://issues.apache.org/jira/browse/HBASE-25517
>             Project: HBase
>          Issue Type: Improvement
>          Components: Balancer
>            Reporter: Xiaolin Ha
>            Assignee: Xiaolin Ha
>            Priority: Major
>
> When we call balanceRSGroup(), it waits for the lock of balancer, which may be occupied by the overall cluster balance(). Sometimes the balance of cluster will take a long time because it need to compute the costs or act the balance region plans. 
> In RSGroup, we don't need to block a balance of one group due to other group balances. 
> All group are mini clusters, and the balance of their regions should support concurrently execution and reduce the race conditions between them.



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