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

["Tsz-wo Sze (Jira)" <ji...@apache.org>]

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

Tsz-wo Sze moved HDFS-16727 to HDDS-7117:
-----------------------------------------

         Key: HDDS-7117  (was: HDFS-16727)
    Workflow: patch-available, re-open possible  (was: no-reopen-closed, patch-avail)
     Project: Apache Ozone  (was: Hadoop HDFS)

> 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
>            Priority: Major
>         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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