[jira] [Commented] (HDDS-2384) Large chunks during write can have memory pressure on DN with multiple clients

["Arpit Agarwal (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDDS-2384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17124236#comment-17124236 ] 

Arpit Agarwal commented on HDDS-2384:
-------------------------------------

This may be covered by other parallel efforts. cc [~shashikant] [~adoroszlai] [~msingh]

> Large chunks during write can have memory pressure on DN with multiple clients
> ------------------------------------------------------------------------------
>
>                 Key: HDDS-2384
>                 URL: https://issues.apache.org/jira/browse/HDDS-2384
>             Project: Hadoop Distributed Data Store
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: Shashikant Banerjee
>            Priority: Major
>              Labels: Triaged, performance
>
> During large file writes, it ends up writing {{16 MB}} chunks.  
> https://github.com/apache/hadoop-ozone/blob/master/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueHandler.java#L691
> In large clusters, 100s of clients may connect to DN. In such cases, depending on the incoming write workload mem load on DN can increase significantly. 



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