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https://issues.apache.org/jira/browse/KUDU-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17903908#comment-17903908
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derek.huang commented on KUDU-3476:
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Hi, I am wondering is there a plan to include this strategy in rebalancers? It
can really help solve the hotspotting issue. Thanks.
> Make replica placement range and table aware
> --------------------------------------------
>
> Key: KUDU-3476
> URL: https://issues.apache.org/jira/browse/KUDU-3476
> Project: Kudu
> Issue Type: New Feature
> Components: master, tserver
> Reporter: Mahesh Reddy
> Assignee: Mahesh Reddy
> Priority: Major
> Fix For: 1.17.0
>
>
> The current replica placement algorithm uses the power of two choices
> algorithm. This algorithm randomly selects tservers and places the replica on
> the tserver with less replicas. This can lead to potential hotspotting as it
> doesn't discriminate by range or table so many tablets from the same
> range/table can be disproportionally distributed.
> With this new feature, the replicas will be placed in a way that the tablets
> per range will be equally distributed amongst the available tservers. If
> multiple tservers have the same amount of replicas per range, then the
> tserver with less replicas for that table will be selected. If multiple
> tservers have the same amount of replicas for that table, the tserver with
> less total replicas will be chosen.
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