[jira] [Created] (FLINK-5499) Try to reuse the resource location of previous execution attempt when allocate slot

["Zhijiang Wang (JIRA)" <ji...@apache.org>]

Zhijiang Wang created FLINK-5499:
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             Summary: Try to reuse the resource location of previous 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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