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https://issues.apache.org/jira/browse/FLINK-15660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186447#comment-17186447
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Chesnay Schepler commented on FLINK-15660:
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The code in question will likely be refactored once we have finalized FLIP-138
and it's follow-ups.
> Redundant AllocationID verification for allocateSlot in TaskSlotTable
> ---------------------------------------------------------------------
>
> Key: FLINK-15660
> URL: https://issues.apache.org/jira/browse/FLINK-15660
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.10.0
> Reporter: xiajun
> Priority: Major
> Attachments: image-2020-01-19-15-46-42-664.png
>
>
> !image-2020-01-19-15-46-42-664.png!
>
> In function TaskSlotTable::allocateSlot, first we will check whether
> allocationId is exist, when exist we will refused this allocation, this was
> introduced by FLINK-14589 . But in -FLINK-14189-, when allocationId exist, we
> think this is valid, which is contradictory with the first check.
> The code is following:
> [https://github.com/apache/flink/blob/310452e800355f0dcc4bc9dd26e9cecba263f3d6/flink-runtime/src/main/java/org/apache/flink/runtime/taskexecutor/slot/TaskSlotTable.java#L261]
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