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From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-4348) Implement communication from ResourceManager to TaskManager
Date Fri, 19 Aug 2016 09:56:20 GMT

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

Till Rohrmann updated FLINK-4348:
---------------------------------
    Summary: Implement communication from ResourceManager to TaskManager  (was: implement
communication from ResourceManager to TaskManager)

> 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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