[jira] [Updated] (HDDS-1528) Buffer Pool in BlockInputStream

["Janus Chow (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-1528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Janus Chow updated HDDS-1528:
-----------------------------
    Target Version/s: 1.5.0  (was: 1.4.0)

I am managing the 1.4.0 release and we currently have more than 500 issues targeted for 1.4.0. I am moving the target field to 1.5.0.
       
If you are actively working on this jira and believe this should be targeted for the 1.4.0 release, Please reach out to me via Apache email or Slack.

> Buffer Pool in BlockInputStream
> -------------------------------
>
>                 Key: HDDS-1528
>                 URL: https://issues.apache.org/jira/browse/HDDS-1528
>             Project: Apache Ozone
>          Issue Type: Improvement
>            Reporter: Hanisha Koneru
>            Priority: Major
>
> In BlockInputStream, when a new chunk is being read, the data in old buffers is thrown away. So, if we want to read data in chunk1 and then chunk2 and then go back to reading chunk1, we would have to fetch chunk1 again from the DNs.
> Reads can be optimized if we maintain a buffer pool instead instead of only one buffer. This way, we can cache chunk data for re-reads.



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