[jira] [Assigned] (FLINK-6667) Pass a callback type to the RestartStrategy, rather than the full ExecutionGraph

["Fang Yong (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-6667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fang Yong reassigned FLINK-6667:
--------------------------------

    Assignee: Fang Yong

> Pass a callback type to the RestartStrategy, rather than the full ExecutionGraph
> --------------------------------------------------------------------------------
>
>                 Key: FLINK-6667
>                 URL: https://issues.apache.org/jira/browse/FLINK-6667
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Distributed Coordination
>    Affects Versions: 1.3.0
>            Reporter: Stephan Ewen
>            Assignee: Fang Yong
>
> To let the {{ResourceStrategy}} work across multiple {{FailoverStrategy}} implementations, it needs to be passed a "callback" to call to trigger the restart of tasks/regions/etc.
> Such a "callback" would be a nice abstraction to use for global restarts as well, to not expose the full execution graph.
> Ideally, the callback is one-shot, so it cannot accidentally be used to call restart() multiple times.
> This would also make the testing of RestartStrategies much easier.



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