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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-4329) Fix Streaming File Source Timestamps/Watermarks Handling
Date Mon, 05 Sep 2016 09:50:21 GMT

     [ https://issues.apache.org/jira/browse/FLINK-4329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Metzger updated FLINK-4329:
----------------------------------
    Fix Version/s:     (was: 1.1.2)
                   1.1.3

> Fix Streaming File Source Timestamps/Watermarks Handling
> --------------------------------------------------------
>
>                 Key: FLINK-4329
>                 URL: https://issues.apache.org/jira/browse/FLINK-4329
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming Connectors
>    Affects Versions: 1.1.0
>            Reporter: Aljoscha Krettek
>            Assignee: Kostas Kloudas
>             Fix For: 1.2.0, 1.1.3
>
>
> The {{ContinuousFileReaderOperator}} does not correctly deal with watermarks, i.e. they
are just passed through. This means that when the {{ContinuousFileMonitoringFunction}} closes
and emits a {{Long.MAX_VALUE}} that watermark can "overtake" the records that are to be emitted
in the {{ContinuousFileReaderOperator}}. Together with the new "allowed lateness" setting
in window operator this can lead to elements being dropped as late.
> Also, {{ContinuousFileReaderOperator}} does not correctly assign ingestion timestamps
since it is not technically a source but looks like one to the user.



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