[
https://issues.apache.org/jira/browse/SPARK-36423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-36423:
------------------------------------
Assignee: Apache Spark
> Randomize blocks within a push request before pushing to improve block merge
> ratio
> ----------------------------------------------------------------------------------
>
> Key: SPARK-36423
> URL: https://issues.apache.org/jira/browse/SPARK-36423
> Project: Spark
> Issue Type: Sub-task
> Components: Shuffle, Spark Core
> Affects Versions: 3.2.0
> Reporter: Min Shen
> Assignee: Apache Spark
> Priority: Major
>
> On the client side, we are currently randomizing the order of push requests
> before processing each request. In addition we can further randomize the
> order of blocks within each push request before pushing them.
> In our benchmark, this has resulted in a 60%-70% reduction of blocks that
> fail to be merged due to bock collision (the existing block merge ratio is
> already pretty good in general, and this further improves it).
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
