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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (BEAM-162) assert fail using session windows
Date Thu, 31 Mar 2016 18:21:25 GMT

    [ https://issues.apache.org/jira/browse/BEAM-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15220369#comment-15220369
] 

Kenneth Knowles commented on BEAM-162:
--------------------------------------

Elaborating on Ben's comment, only the trigger's {{onFire()}} should be capable of closing
a window.

> assert fail using session windows
> ---------------------------------
>
>                 Key: BEAM-162
>                 URL: https://issues.apache.org/jira/browse/BEAM-162
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-core
>            Reporter: Mark Shields
>            Assignee: Mark Shields
>
> java.lang.IllegalStateException: Window [2016-03-31T05:35:31.158Z..2016-03-31T06:05:31.158Z)
should have been added
> at com.google.cloud.dataflow.sdk.repackaged.com.google.common.base.Preconditions.checkState(Preconditions.java:199)
> at com.google.cloud.dataflow.sdk.util.ReduceFnRunner.processElement(ReduceFnRunner.java:440)
> at com.google.cloud.dataflow.sdk.util.ReduceFnRunner.processElements(ReduceFnRunner.java:282)
> at com.google.cloud.dataflow.sdk.util.GroupAlsoByWindowViaWindowSetDoFn.processElement(GroupAlsoByWindowViaWindowSetDoFn.java:83)
> at com.google.cloud.dataflow.sdk.util.SimpleDoFnRunner.invokeProcessElement(SimpleDoFnRunner.java:49)
> at com.google.cloud.dataflow.sdk.util.DoFnRunnerBase.processElement(DoFnRunnerBase.java:138)
> at com.google.cloud.dataflow.sdk.util.LateDataDroppingDoFnRunner.processElement(LateDataDroppingDoFnRunner.java:67)
> at com.google.cloud.dataflow.sdk.runners.worker.SimpleParDoFn.processElement(SimpleParDoFn.java:191)
> at com.google.cloud.dataflow.sdk.runners.worker.ForwardingParDoFn.processElement(ForwardingParDoFn.java:42)
> at com.google.cloud.dataflow.sdk.runners.worker.DataflowWorkerLoggingParDoFn.processElement(DataflowWorkerLoggingParDoFn.java:47)
> at com.google.cloud.dataflow.sdk.util.common.worker.ParDoOperation.process(ParDoOperation.java:53)



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