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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1967) Introduce (Event)time in Streaming
Date Thu, 02 Jul 2015 09:37:05 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14611704#comment-14611704
] 

ASF GitHub Bot commented on FLINK-1967:
---------------------------------------

Github user StephanEwen commented on the pull request:

    https://github.com/apache/flink/pull/879#issuecomment-117978015
  
    We have actually avoided JodaTime and other time libraries for all other times, like checkpoint
interval, heartbeats, timeouts, restart-delays, ... Feels inconsistent to now have the watermark
interval as a jodatime Duration.


> Introduce (Event)time in Streaming
> ----------------------------------
>
>                 Key: FLINK-1967
>                 URL: https://issues.apache.org/jira/browse/FLINK-1967
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Aljoscha Krettek
>            Assignee: Aljoscha Krettek
>
> This requires introducing a timestamp in streaming record and a change in the sources
to add timestamps to records. This will also introduce punctuations (or low watermarks) to
allow windows to work correctly on unordered, timestamped input data. In the process of this,
the windowing subsystem also needs to be adapted to use the punctuations. Furthermore, all
operators need to be made aware of punctuations and correctly forward them. Then, a new operator
must be introduced to to allow modification of timestamps.



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