jiangxb1987 commented on issue #26541: [SPARK-29910][SQL] Optimize speculation performance by adding minimum runtime limit URL: https://github.com/apache/spark/pull/26541#issuecomment-554548014 What you really want is to make `MIN_TIME_TO_SPECULATION` configurable? I'm not sure whether it would be a good idea because it's a fixed global value, so changing the min time should affect all the jobs. Also, if we feel speculation is not necessary then we can set `spark.speculation` to `false`.
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