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Posted to issues@kudu.apache.org by "shenxingwuying (Jira)" <ji...@apache.org> on 2022/02/22 10:01:00 UTC

[jira] [Commented] (KUDU-3061) Balance tablet leaders across TServers

    [ https://issues.apache.org/jira/browse/KUDU-3061?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17495988#comment-17495988 ] 

shenxingwuying commented on KUDU-3061:
--------------------------------------

This work can assign to me. Now I am thinking do the work.

My basic idea is every tablet server leaders' number : replicas' number should be  1:3.

If needed ,  I can write a doc to describe my detail thought.  

 

Adding another thread in master do the work, only leader can run the leader rebalance.

The work should based on replica rebalances work enabled.

> Balance tablet leaders across TServers
> --------------------------------------
>
>                 Key: KUDU-3061
>                 URL: https://issues.apache.org/jira/browse/KUDU-3061
>             Project: Kudu
>          Issue Type: New Feature
>          Components: api, tablet
>    Affects Versions: 1.11.1
>            Reporter: Adam Voga
>            Priority: Major
>              Labels: performance, roadmap-candidate, scalability
>
> The number of leader tablets per tablet server can become imbalanced over time, putting additional pressure on a few nodes.
> A CLI tool or an extension to the existing balancer should be added to take care of this.
> Currently the only option is running leader_step_down manually. 



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