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https://issues.apache.org/jira/browse/HDDS-7117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz-wo Sze updated HDDS-7117:
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Component/s: Ozone Datanode
> Consider reading chunk files using MappedByteBuffer
> ---------------------------------------------------
>
> Key: HDDS-7117
> URL: https://issues.apache.org/jira/browse/HDDS-7117
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Datanode
> Reporter: Wei-Chiu Chuang
> Assignee: Tsz-wo Sze
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.4.0
>
> Attachments: Screen Shot 2022-08-04 at 7.12.55 AM.png,
> ozone_dn-rhel01.ozone.cisco.local.html, ozone_dn-rhel03.ozone.cisco.local.html
>
>
> Running Impala TPC-DS which stresses Ozone DN read path.
> BufferUtils#assignByteBuffers stands out as one of the offender.
> We can experiment with MappedByteBuffer and see if it makes performance
> better.
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