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https://issues.apache.org/jira/browse/HBASE-22494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16851465#comment-16851465
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binlijin commented on HBASE-22494:
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I think it need add a new GroupingStrategy and some thing to differ the write
workloads(like TableDescriptor metadata).
If do it automatically, we should change region to support switch wal when
running.
> Use different wals for different write workload table
> -----------------------------------------------------
>
> Key: HBASE-22494
> URL: https://issues.apache.org/jira/browse/HBASE-22494
> Project: HBase
> Issue Type: Improvement
> Components: wal
> Reporter: binlijin
> Priority: Major
>
> I observe some cluster have many wal files because there are different tables
> have different
> write workloads, there share the same wal, and write heavy workloads table
> make wal files increasing fast, but write light workloads table make wal
> files archive slow...
> There is a possible way is that make them in different namespace and use
> multiwal(namespace Strategies) to make them use different wals, but it need
> to design it at first before providing service.
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