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https://issues.apache.org/jira/browse/FLINK-31052?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhu Zhu updated FLINK-31052:
Description:
This task aims to verify
[FLINK-30707|https://issues.apache.org/jira/browse/FLINK-30707] which improves
the slow task detection.
The slow task detection now takes the input data volume of tasks into account.
Tasks which has a longer execution time but consumes more data may not be
considered as slow. This improvement helps to eliminate the negative impacts of
data skew on slow task detecting.
The documentation of speculative execution can be found
[here|https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/speculative_execution/#speculative-execution]
.
One can verify it by creating intended data skew.
was:
This task aims to verify [FLINK-30707 which improves the slow task
detection|https://issues.apache.org/jira/browse/FLINK-30707].
The slow task detection now takes the input data volume of tasks into account.
Tasks which has a longer execution time but consumes more data may not be
considered as slow. This improvement helps to eliminate the negative impacts of
data skew on slow task detecting.
The documentation of speculative execution can be found
[here|https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/speculative_execution/#speculative-execution]
.
One can verify it by creating intended data skew.
> Release Testing: Verify FLINK-30707 Improve slow task detection
> ---
>
> Key: FLINK-31052
> URL: https://issues.apache.org/jira/browse/FLINK-31052
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
>Reporter: Zhu Zhu
>Priority: Blocker
> Fix For: 1.17.0
>
>
> This task aims to verify
> [FLINK-30707|https://issues.apache.org/jira/browse/FLINK-30707] which
> improves the slow task detection.
> The slow task detection now takes the input data volume of tasks into
> account. Tasks which has a longer execution time but consumes more data may
> not be considered as slow. This improvement helps to eliminate the negative
> impacts of data skew on slow task detecting.
> The documentation of speculative execution can be found
> [here|https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/speculative_execution/#speculative-execution]
> .
> One can verify it by creating intended data skew.
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