GitHub user gyfora opened a pull request:
https://github.com/apache/flink/pull/1216
[FLINK-2802] [streaming] Remove cyclic watermark dependencies for iterations
This PR contains a simple change so that if timestamps are enabled,
iteration sources automatically emit a `Long.MAX_VALUE` watermark.
While this will not help making event/processing time windows consistent
across cycles (which is inherently problematic due to the cyclic time
dependency), at least these programs will not deadlock.
I still need to add a test to validate the behaviour.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gyfora/flink watermark
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1216.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1216
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commit 3671742d99fe9afdb71a00ed16f5ec47f099b0bb
Author: Gyula Fora <gyf...@apache.org>
Date: 2015-10-02T16:26:32Z
[FLINK-2802] [streaming] Remove cyclic watermark dependencies for iterations
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