[
https://issues.apache.org/jira/browse/SPARK-22537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wenchen Fan reassigned SPARK-22537:
-----------------------------------
Assignee: Chenzhao Guo
> Aggregation of map output statistics on driver faces single point bottleneck
> ----------------------------------------------------------------------------
>
> Key: SPARK-22537
> URL: https://issues.apache.org/jira/browse/SPARK-22537
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 2.2.0
> Reporter: Chenzhao Guo
> Assignee: Chenzhao Guo
> Fix For: 2.3.0
>
>
> In adaptive execution, the map output statistics of all mappers will be
> aggregated after a stage is successfully executed. Driver takes the
> aggregation job while it will get slow when the number of mapper * shuffle
> partitions is large.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
