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https://issues.apache.org/jira/browse/FLINK-28131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xingbo Huang closed FLINK-28131.
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Resolution: Done
> FLIP-168: Speculative Execution for Batch Job
> ---------------------------------------------
>
> Key: FLINK-28131
> URL: https://issues.apache.org/jira/browse/FLINK-28131
> Project: Flink
> Issue Type: New Feature
> Components: Runtime / Coordination
> Reporter: Zhu Zhu
> Assignee: Zhu Zhu
> Priority: Major
> Fix For: 1.16.0
>
>
> Speculative executions is helpful to mitigate slow tasks caused by
> problematic nodes. The basic idea is to start mirror tasks on other nodes
> when a slow task is detected. The mirror task processes the same input data
> and produces the same data as the original task.
> More detailed can be found in
> [FLIP-168|[https://cwiki.apache.org/confluence/display/FLINK/FLIP-168%3A+Speculative+Execution+for+Batch+Job].]
>
> This is the umbrella ticket to track all the changes of this feature.
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