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https://issues.apache.org/jira/browse/FLINK-9293?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen closed FLINK-9293.
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> SlotPool should check slot id when accepting a slot offer with existing
> allocation id
> -------------------------------------------------------------------------------------
>
> Key: FLINK-9293
> URL: https://issues.apache.org/jira/browse/FLINK-9293
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Affects Versions: 1.5.0
> Reporter: shuai.xu
> Assignee: shuai.xu
> Priority: Blocker
> Labels: flip-6
> Fix For: 1.5.0
>
>
> For flip-6, there may be two or more slot assigned to the same slot
> allocation. For example, taskExecutor1 register, and assign allocationID1 to
> its slot1, but from taskExecutor1 side, the registeration timeout, and it
> register again, RM will fail the allocationID1 and assign slot2 on
> taskExecutor2 to it. but taskExecutor1 has already accept the allocationID1.
> So taskExecutor1 and taskExecutor2 both offer slot to jobmaster with the
> allocationID1. Now slot pool just accept all the slot offer, and this may one
> slot leak.
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