Zhu Zhu created FLINK-31005:
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Summary: Release Testing: Verify FLIP-281 Supports speculative
execution of sinks
Key: FLINK-31005
URL: https://issues.apache.org/jira/browse/FLINK-31005
Project: Flink
Issue Type: Sub-task
Components: Runtime / Coordination
Reporter: Zhu Zhu
Fix For: 1.17.0
This task aims to verify [FLIP-281 Supports speculative execution of
sinks|https://issues.apache.org/jira/browse/FLINK-30725].
The documentation can be found
[here|https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/speculative_execution/#enable-sinks-for-speculative-execution]
.
Things to verify:
1. If a sink implements the decorative interface
{{SupportsConcurrentExecutionAttempts}, Speculative executions can be
performed, otherwise not. Sinks to verify includes SinkFunction, OutputFormat
and Sink(V2).
2. These built-in sinks supports speculative execution: DiscardingSink,
PrintSinkFunction, PrintSink, FileSink, FileSystemOutputFormat, HiveTableSink
If it's hard to construct a case that speculative execution would happen,
especially for those built-in sinks, the speculative execution configuration
can be tuned to allow it easier to happen, e.g. set
{{slow-task-detector.execution-time.baseline-lower-bound}} and
{{slow-task-detector.execution-time.baseline-ratio}} to {{0}}.
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