[
https://issues.apache.org/jira/browse/SPARK-26542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dongjoon Hyun closed SPARK-26542.
---------------------------------
> Support the coordinator to demerminte post-shuffle partitions more reasonably
> -----------------------------------------------------------------------------
>
> Key: SPARK-26542
> URL: https://issues.apache.org/jira/browse/SPARK-26542
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.3.2
> Reporter: chenliang
> Priority: Major
> Fix For: 2.3.0
>
>
> For SparkSQL ,when we open AE by 'set spark.sql.adapative.enable=true'，the
> ExchangeCoordinator will introduced to determine the number of post-shuffle
> partitions. But in some certain conditions,the coordinator performed not very
> well, there are always some tasks retained and they worked with Shuffle Read
> Size / Records 0.0B/0 ,We could increase the
> spark.sql.adaptive.shuffle.targetPostShuffleInputSize to solve this,but this
> action is unreasonable as targetPostShuffleInputSize Should not be set too
> large.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
