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Posted to issues@kudu.apache.org by "Todd Lipcon (Jira)" <ji...@apache.org> on 2019/10/17 17:26:00 UTC

[jira] [Commented] (KUDU-2975) Spread WAL across multiple data directories

    [ https://issues.apache.org/jira/browse/KUDU-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16953946#comment-16953946 ] 

Todd Lipcon commented on KUDU-2975:
-----------------------------------

agreed this would be good to do. I think [~awong] had done some investigation/write-up of what would be required to do this at one point, right?

> Spread WAL across multiple data directories
> -------------------------------------------
>
>                 Key: KUDU-2975
>                 URL: https://issues.apache.org/jira/browse/KUDU-2975
>             Project: Kudu
>          Issue Type: New Feature
>          Components: fs, tablet, tserver
>            Reporter: LiFu He
>            Priority: Major
>         Attachments: network.png, tserver-WARNING.png, util.png
>
>
> Recently, we deployed a new kudu cluster and every node has 12 SSD. Then, we created a big table and loaded data to it through flink.  We noticed that the util of one SSD which is used to store WAL is 100% but others are free. So, we suggest to spread WAL across multiple data directories.



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