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https://issues.apache.org/jira/browse/FLINK-4348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhangjing reassigned FLINK-4348:
--------------------------------

    Assignee: zhangjing

> implement communication from ResourceManager to TaskManager
> -----------------------------------------------------------
>
>                 Key: FLINK-4348
>                 URL: https://issues.apache.org/jira/browse/FLINK-4348
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Cluster Management
>            Reporter: Kurt Young
>            Assignee: zhangjing
>
> There are mainly 3 logics initiated from RM to TM:
> * Heartbeat, RM use heartbeat to sync with TM's slot status
> * SlotRequest, when RM decides to assign slot to JM, should first try to send 
> request to TM for slot. TM can either accept or reject this request.
> * FailureNotify, in some corner cases, TM will be marked as invalid by 
> cluster manager master(e.g. yarn master), but TM itself does not realize. RM 
> should send failure notify to TM and TM can terminate itself



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