Zhu Zhu created FLINK-28136:
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Summary: Implement ExecutionTimeBasedSlowTaskDetector
Key: FLINK-28136
URL: https://issues.apache.org/jira/browse/FLINK-28136
Project: Flink
Issue Type: Sub-task
Components: Runtime / Coordination
Reporter: Zhu Zhu
Fix For: 1.16.0
In the first version of speculative execution, an
ExecutionTimeBasedSlowTaskDetector will be used to detect slow tasks. For
ExecutionTimeBasedSlowTaskDetector, if a task's execution time is much longer
than that of most tasks of the same JobVertex, the task will be identified as
slow. More specifically, it will compute an execution time baseline for each
JobVertex. Tasks which execute longer than or equals to the baseline will be
identified as slow tasks.
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