[jira] [Updated] (FLINK-6743) .window(TumblingEventTimeWindows.of(Time.days(1), Time.hours(-8))) doesn't work

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

     [ https://issues.apache.org/jira/browse/FLINK-6743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lix updated FLINK-6743:
-----------------------
    Affects Version/s: 1.2.0
          Environment: Flink 1.2.0.  (was: Flink 1.2.0 and above.)

> .window(TumblingEventTimeWindows.of(Time.days(1), Time.hours(-8))) doesn't work
> -------------------------------------------------------------------------------
>
>                 Key: FLINK-6743
>                 URL: https://issues.apache.org/jira/browse/FLINK-6743
>             Project: Flink
>          Issue Type: Bug
>          Components: DataStream API
>    Affects Versions: 1.2.0
>         Environment: Flink 1.2.0.
>            Reporter: Lix
>
> The tutorial on the official website says that we can use
> ```
> // daily tumbling event-time windows offset by -8 hours.
> input
>     .keyBy(<key selector>)
>     .window(TumblingEventTimeWindows.of(Time.days(1), Time.hours(-8)))
>     .<windowed transformation>(<window function>);
> ```
> when our timezone is UTC+8, which is in China. But when I tried to run this code, it just reported an error:
> ```
> Exception in thread "main" java.lang.IllegalArgumentException: TumblingProcessingTimeWindows parameters must satisfy  0 <= offset < size
> 	at org.apache.flink.streaming.api.windowing.assigners.TumblingProcessingTimeWindows.<init>(TumblingProcessingTimeWindows.java:54)
> 	at org.apache.flink.streaming.api.windowing.assigners.TumblingProcessingTimeWindows.of(TumblingProcessingTimeWindows.java:111)
> ```
> How then, should I write my code to make a tumbling window which clears every day at 00:00, when my timezone is UTC+8?



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