Github user eliaslevy commented on a diff in the pull request:
https://github.com/apache/flink/pull/6076#discussion_r193619225
--- Diff: docs/dev/event_time.md ---
@@ -213,10 +213,33 @@ arrive after the system's event time clock (as
signaled by the watermarks) has a
timestamp. See [Allowed Lateness]({{ site.baseurl
}}/dev/stream/operators/windows.html#allowed-lateness) for more information on
how to work
with late elements in event time windows.
+## Idling sources
--- End diff --
Good point. Probably a good idea to include the here the description in
[StreamStatus](https://ci.apache.org/projects/flink/flink-docs-release-1.5/api/java/org/apache/flink/streaming/runtime/streamstatus/StreamStatus.html).
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