zhuzhurk commented on code in PR #21898:
URL: https://github.com/apache/flink/pull/21898#discussion_r1101427951
##########
docs/content/docs/deployment/speculative_execution.md:
##########
@@ -62,6 +62,15 @@ To make speculative execution work better for different
jobs, you can tune below
- [`execution.batch.speculative.max-concurrent-executions`]({{< ref
"docs/deployment/config"
>}}#execution-batch-speculative-speculative-max-concurrent-e)
- [`execution.batch.speculative.block-slow-node-duration`]({{< ref
"docs/deployment/config"
>}}#execution-batch-speculative-speculative-block-slow-node)
+Currently, speculative execution uses the slow task detector based on
execution time to detect slow tasks.
+The detector will periodically count all finished executions, if the finished
execution ratio reaches the
+configured ratio(`slow-task-detector.execution-time.baseline-ratio`), the
baseline will be defined as
+the median multiplied by the configured
multiplier(`slow-task-detector.execution-time.baseline-multiplier`),
Review Comment:
median -> execution time median
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