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https://issues.apache.org/jira/browse/FLINK-1967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14624941#comment-14624941
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ASF GitHub Bot commented on FLINK-1967:
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Github user aljoscha commented on the pull request:
https://github.com/apache/flink/pull/906#issuecomment-120992739
This is a rework of #879. I reworked it to not use jodi-time anymore. Now
timestamps are just long fields. Also, watermarks are now transmitted in band
with the records, not as events.
I'm currently running some performance tests, once the results are in I'll
post the numbers here.
> 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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