[jira] [Closed] (FLINK-4556) Make Queryable State Key-Group Aware

["Stephan Ewen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-4556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephan Ewen closed FLINK-4556.
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> Make Queryable State Key-Group Aware
> ------------------------------------
>
>                 Key: FLINK-4556
>                 URL: https://issues.apache.org/jira/browse/FLINK-4556
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 1.2.0
>            Reporter: Aljoscha Krettek
>            Assignee: Stefan Richter
>            Priority: Blocker
>             Fix For: 1.2.0
>
>
> The recent introduction of key-grouped state breaks queryable state because the JobManager does not yet forward the client to the correct TaskManager based on key-group ranges.
> This will either have to be implemented on the JobManager side, i.e. in {{AkkaKvStateLocationLookupService}} or on the {{TaskManager}} when state is registered. The JobManager can know the mapping because it should know the {{parallelism}}/{{maxParallelism}} which it can use to determine where the state for a key-group is stored. The {{TaskManager}} send a {{NotifyKvStateRegistered}} message that already contains a {{keyGroupIndex}} field that is not useful/correct at the moment, though.



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