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https://issues.apache.org/jira/browse/FLINK-4329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15430434#comment-15430434
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ASF GitHub Bot commented on FLINK-4329:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/2350#discussion_r75647030
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/functions/source/ContinuousFileReaderOperator.java
---
@@ -63,22 +66,22 @@
*/
@Internal
public class ContinuousFileReaderOperator<OUT, S extends Serializable>
extends AbstractStreamOperator<OUT>
- implements OneInputStreamOperator<FileInputSplit, OUT>,
OutputTypeConfigurable<OUT> {
+ implements OneInputStreamOperator<FileInputSplit, OUT>,
OutputTypeConfigurable<OUT>, AsyncExceptionChecker {
private static final long serialVersionUID = 1L;
private static final Logger LOG =
LoggerFactory.getLogger(ContinuousFileReaderOperator.class);
+ @VisibleForTesting
--- End diff --
This doesn't do anything. It's just a marker interface.
> 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: 1.1.1
>
>
> 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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