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Posted to issues@flink.apache.org by "Aljoscha Krettek (JIRA)" <ji...@apache.org> on 2016/08/08 12:00:25 UTC
[jira] [Created] (FLINK-4329) Streaming File Source Must Correctly
Handle Timestamps/Watermarks
Aljoscha Krettek created FLINK-4329:
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Summary: Streaming File Source Must Correctly Handle Timestamps/Watermarks
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
Fix For: 1.1.1
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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