[jira] [Commented] (FLINK-6244) Emit timeouted Patterns as Side Output

["Kostas Kloudas (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-6244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15953590#comment-15953590 ] 

Kostas Kloudas commented on FLINK-6244:
---------------------------------------

The only problem I can find, and we have to think of how to handle, is backwards compatibility. 
The already existing {{CEP}} programs (if any) would expect the timed-out patterns in the old format ({{Either}}).

I would suggest that the best way to see how to proceed is to open a discussion in the dev mailing list with the proposed change.
This will allow us to see 1) if anybody uses the CEP library, and 2) if users that already have a running job are ok with the change.

What do you think?

> Emit timeouted Patterns as Side Output
> --------------------------------------
>
>                 Key: FLINK-6244
>                 URL: https://issues.apache.org/jira/browse/FLINK-6244
>             Project: Flink
>          Issue Type: Improvement
>          Components: CEP
>    Affects Versions: 1.3.0
>            Reporter: Dawid Wysakowicz
>             Fix For: 1.3.0
>
>
> Now that we have SideOuputs I think timeouted patterns should be emitted into them rather than producing a stream of `Either`



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