[jira] [Commented] (FLINK-4357) Implement TaskManager side of slot allocation from ResourceManager

["Till Rohrmann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-4357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15436953#comment-15436953 ] 

Till Rohrmann commented on FLINK-4357:
--------------------------------------

I think we also need some kind of {{SlotManager}} on the {{TaskManager}} to manage which slot has been assigned to which {{JobManager}}. Furthermore, the slots will offer access to the respective {{JobManagers}} for the tasks which are running in them.

> Implement TaskManager side of slot allocation from ResourceManager
> ------------------------------------------------------------------
>
>                 Key: FLINK-4357
>                 URL: https://issues.apache.org/jira/browse/FLINK-4357
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Cluster Management
>            Reporter: Zhijiang Wang
>            Assignee: Zhijiang Wang
>
> The {{ResourceManager}} may tell the {{TaskManager}} to give a slot to a specific {{JobManager}}. 
> The slot allocation messages are fenced via ({{RmLeaderID}}, {{JobID}}, {{AllocationID}}, {{ResourceID}}). 
> The TM will ack the request ({{RmLeaderID}},{{AllocationID}}) to the RM and then offer that slot to the JM. If not accepted by JM, the TM notifies the RM that the slot is in fact available.



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