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Posted to issues@flink.apache.org by "zhangjing (JIRA)" <ji...@apache.org> on 2016/08/15 07:37:20 UTC

[jira] [Assigned] (FLINK-4348) implement communication from ResourceManager to TaskManager

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

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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