[jira] [Closed] (FLINK-20837) Refactor dynamic SlotID

["Xintong Song (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-20837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xintong Song closed FLINK-20837.
--------------------------------
    Resolution: Done

Merged via
* master (1.13): 8dc257dcd3907cd42c15bd1748e4e1954e15696c

> Refactor dynamic SlotID
> -----------------------
>
>                 Key: FLINK-20837
>                 URL: https://issues.apache.org/jira/browse/FLINK-20837
>             Project: Flink
>          Issue Type: Sub-task
>            Reporter: Yangze Guo
>            Assignee: Yangze Guo
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.13.0
>
>
> In FLINK-14189, we specified that the SlotID whose slot number is -1 represents the dynamic slot. However, the SlotID with a negative slot number will be treated as invalid in other components, e.g. SlotPool and SlotManager. We have to remove a lot of sanity checks with this change, which is error-prone. The evidence is that there are still some sanity checks that have not been removed, e.g. sanity checks in AllocatedSlotInfo.
> We propose to assign an increasing number larger than the numberOfSlot to dynamic slots. In this way, we can decouple the JM and RM with the dynamic slot logic.



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