Maxim Gekk created SPARK-24757:
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Summary: Improve error message for broadcast timeouts
Key: SPARK-24757
URL: https://issues.apache.org/jira/browse/SPARK-24757
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 2.3.1
Reporter: Maxim Gekk
Currently, the TimeoutException that is thrown on broadcast joins doesn't give
any clues to user how to resolve the issue. Need to provide such help to users
by pointing out two config parameters: *spark.sql.broadcastTimeout* and
*spark.sql.autoBroadcastJoinThreshold*.
The ticket aims to handle the TimeoutException there:
https://github.com/apache/spark/blob/b7a036b75b8a1d287ac014b85e90d555753064c9/sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/BroadcastExchangeExec.scala#L143
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