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https://issues.apache.org/jira/browse/HBASE-8715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13680895#comment-13680895
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Sergey Shelukhin commented on HBASE-8715:
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HBase uses HDFS as main backing storage, so this will have to go thru it to
actual file system level; does there need to be an HDFS JIRA to plumb this thru?
> HBase should support IO QOS
> ---------------------------
>
> Key: HBASE-8715
> URL: https://issues.apache.org/jira/browse/HBASE-8715
> Project: HBase
> Issue Type: New Feature
> Reporter: Pritam Damania
> Priority: Minor
>
> The operating system exposes system calls like ioprio_set/get to set
> priorities for various threads doing IO.
> HBase can use this to accordingly prioritize operations like
> flushes/compactions/WAL write etc to use the disk bandwidth more efficiently.
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