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From "Jonas Traub (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4121) Add timeunit (ms) to docs for timestamps and watermarks
Date Mon, 27 Jun 2016 09:18:52 GMT
Jonas Traub created FLINK-4121:

             Summary: Add timeunit (ms) to docs for timestamps and watermarks
                 Key: FLINK-4121
                 URL: https://issues.apache.org/jira/browse/FLINK-4121
             Project: Flink
          Issue Type: Improvement
          Components: DataStream API
            Reporter: Jonas Traub
            Priority: Trivial

I'm teaching a class where students are supposed to implement Flink streaming programs. It
seems to be unclear for them, that the time unit of timestamps and watermarks is milliseconds.

They just see TimeWindow.seconds(...) or something similar and assume the timestamps to be
of the same unit (seconds) which is obviously not the case.

I just checked the documentation and there is no explicit specification of the time unit used
for timestamps.

After short talk with [~aljoscha], I'll open a mini-PR to address this issue.

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