Deegue created SPARK-29910:
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Summary: Add minimum runtime limit to speculation
Key: SPARK-29910
URL: https://issues.apache.org/jira/browse/SPARK-29910
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.0.0
Reporter: Deegue
The minimum runtime to speculation used to be a fixed value 100ms. It means
tasks finished in seconds will also be speculated and more executors will be
required.
To resolve this, we add `spark.speculation.minRuntime` to control the minimum
runtime limit for speculation.
We can reduce normal tasks to be speculated by adjusting
`spark.speculation.minRuntime`.
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