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Posted to issues@kudu.apache.org by "Xu Yao (JIRA)" <ji...@apache.org> on 2019/05/13 08:22:00 UTC

[jira] [Commented] (KUDU-2823) Rebalance range partition

    [ https://issues.apache.org/jira/browse/KUDU-2823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16838362#comment-16838362 ] 

Xu Yao commented on KUDU-2823:
------------------------------

We implemented a similar feature on 1.6.x. When select tserver to create a tablet, balance according to the number of tablets in the same range partition, not the number of tablets on tserver. I'd like to contribute this patch.

> Rebalance range partition
> -------------------------
>
>                 Key: KUDU-2823
>                 URL: https://issues.apache.org/jira/browse/KUDU-2823
>             Project: Kudu
>          Issue Type: Improvement
>            Reporter: HeLifu
>            Priority: Major
>
> Right now we will add new range every day for a fact table which has range+hash partitions, and then rebalance it as soon as possible. It seems that not only the new added tablets of this table but also the historical tablets will be rebalanced. But the historical tablets already have data, so they are heavy to move and it will increase the disk and network suddenly. So, I think it will be good to rebalance the new added range partitions.



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