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Posted to issues@ozone.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/08/11 03:05:00 UTC

[jira] [Updated] (HDDS-7117) Consider reading chunk files using MappedByteBuffer

     [ https://issues.apache.org/jira/browse/HDDS-7117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HDDS-7117:
---------------------------------
    Labels: pull-request-available  (was: )

> Consider reading chunk files using MappedByteBuffer
> ---------------------------------------------------
>
>                 Key: HDDS-7117
>                 URL: https://issues.apache.org/jira/browse/HDDS-7117
>             Project: Apache Ozone
>          Issue Type: Improvement
>            Reporter: Wei-Chiu Chuang
>            Assignee: Tsz-wo Sze
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: Screen Shot 2022-08-04 at 7.12.55 AM.png, 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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