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https://issues.apache.org/jira/browse/FLINK-5499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhijiang Wang updated FLINK-5499:
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Summary: Try to reuse the resource location of prior execution attempt when
allocate slot (was: Try to reuse the resource location of previous execution
attempt when allocate slot)
> Try to reuse the resource location of prior execution attempt when allocate
> slot
> --------------------------------------------------------------------------------
>
> Key: FLINK-5499
> URL: https://issues.apache.org/jira/browse/FLINK-5499
> Project: Flink
> Issue Type: Improvement
> Components: JobManager
> Reporter: Zhijiang Wang
>
> Currently when schedule execution to request to allocate slot from SlotPool,
> the TaskManagerLocation parameter is empty collection. So for task fail over
> scenario, the new execution attempt may be deployed to different task
> managers. If setting rockDB as state backend, the performance is better if
> the data can be restored from local machine. So we try to reuse the
> TaskManagerLocation of prior execution attempt when allocating slot from
> SlotPool. If the TaskManagerLocation is empty from prior executions, the
> behavior is the same with current status.
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