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Posted to issues@ozone.apache.org by "Ethan Rose (Jira)" <ji...@apache.org> on 2021/10/20 20:41:06 UTC
[jira] [Updated] (HDDS-2384) Large chunks during write can have
memory pressure on DN with multiple clients
[ https://issues.apache.org/jira/browse/HDDS-2384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ethan Rose updated HDDS-2384:
-----------------------------
Target Version/s: 1.3.0 (was: 1.2.0)
I am managing the 1.2.0 release and we currently have more than 600 issues targeted for 1.2.0. I am moving the target field to 1.3.0.
If you are actively working on this jira and believe this should be targeted for the 1.2.0 release, Please reach out to me via Apache email or Slack.
> 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: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Datanode
> 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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