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From "Jingsong Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-1393) Update Flink Runner to Flink 1.2.0
Date Sat, 11 Feb 2017 07:37:42 GMT

    [ https://issues.apache.org/jira/browse/BEAM-1393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15862290#comment-15862290
] 

Jingsong Lee commented on BEAM-1393:
------------------------------------

Totally agree!
{{AbstractStreamOperator}} will check the type of {{this}} and invoke {{checkpointKeyGroup}}
in {{snapshotState()}}. ({{initializeState}} is similar) Looking forward to contributing back
to Flink.
I think we do not need store {{pushedBackWatermark}} in state anymore. We can maintain it
in memory and restore it by traversing pushed-back events.


> Update Flink Runner to Flink 1.2.0
> ----------------------------------
>
>                 Key: BEAM-1393
>                 URL: https://issues.apache.org/jira/browse/BEAM-1393
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-flink
>            Reporter: Aljoscha Krettek
>            Assignee: Jingsong Lee
>
> When we update to 1.2.0 we can use the new internal Timer API that is available to Flink
operators: {{InternalTimerService}} and also use broadcast state to store side-input data.



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