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https://issues.apache.org/jira/browse/KUDU-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17004108#comment-17004108
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YangSong commented on KUDU-2975:
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I do a performance test. The write performance improvement is still significant.
https://docs.google.com/document/d/1ja69Svt8lt-Bjavmch0CpPzzLdkr2IhT8D_wPu45jcI/edit?usp=sharing
> 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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