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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9491) Implement timer data structure based on RocksDB
Date Mon, 02 Jul 2018 09:54:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16529633#comment-16529633
] 

ASF GitHub Bot commented on FLINK-9491:
---------------------------------------

Github user StefanRRichter commented on the issue:

    https://github.com/apache/flink/pull/6228
  
    @sihuazhou thanks for the fast review. I addressed all your comments.


> Implement timer data structure based on RocksDB
> -----------------------------------------------
>
>                 Key: FLINK-9491
>                 URL: https://issues.apache.org/jira/browse/FLINK-9491
>             Project: Flink
>          Issue Type: Sub-task
>          Components: State Backends, Checkpointing
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.6.0
>
>
> We can now implement timer state that is stored in RocksDB for users that run the {{RocksDBKeyedStateBackend}}.
As explained in the design document (https://docs.google.com/document/d/1XbhJRbig5c5Ftd77d0mKND1bePyTC26Pz04EvxdA7Jc/edit#heading=h.17v0k3363r6q)
this should also give us asynchronous and incremental snapshots for timer state that is larger
than main memory.
> We need to think about a way in which to user can select either to run timers on RocksDB
or on the heap when using the {{RocksDBKeyedStateBackend}}.



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