[
https://issues.apache.org/jira/browse/SPARK-40377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17601297#comment-17601297
]
Apache Spark commented on SPARK-40377:
--------------------------------------
User 'LeeeeLiu' has created a pull request for this issue:
https://github.com/apache/spark/pull/37819
> Allow customize maxBroadcastTableBytes and maxBroadcastRows
> -----------------------------------------------------------
>
> Key: SPARK-40377
> URL: https://issues.apache.org/jira/browse/SPARK-40377
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: LeeeeLiu
> Priority: Major
> Attachments: 截屏2022-09-07 20.40.06.png, 截屏2022-09-07 20.40.16.png
>
>
> Recently, we encountered some driver OOM problems. Some tables with large
> data volume were compressed using Snappy and then broadcast join was
> performed, but the actual data volume was too large, which resulted in driver
> OOM.
> The values of maxBroadcastTableBytes and maxBroadcastRows are hardcoded, 8GB
> and 512000000 respectively. Maybe we can allow customization of these values,
> configure smaller values according to different scenarios, and prohibit
> broadcast joins for tables with large data volumes to avoid driver OOM.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
