JacobZheng created SPARK-36903:
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Summary: oom exception occurred during code generation due to a
large number of case when branches
Key: SPARK-36903
URL: https://issues.apache.org/jira/browse/SPARK-36903
Project: Spark
Issue Type: Improvement
Components: Spark Core
Affects Versions: 3.0.1
Reporter: JacobZheng
I have a spark task that contains many case when branches. When I run it, the
driver throws an oom exception in the codegen phase. What I expect is if it is
possible to detect or limit it in the codegen phase to avoid this.
I see that spark 2.2 has a configuration item
spark.sql.codegen.maxCaseBranches. would it help my situation if I try to add
this limit back?
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