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https://issues.apache.org/jira/browse/FLINK-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14567853#comment-14567853
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ASF GitHub Bot commented on FLINK-2098:
---------------------------------------
Github user mbalassi commented on a diff in the pull request:
https://github.com/apache/flink/pull/742#discussion_r31460859
--- Diff:
flink-staging/flink-streaming/flink-streaming-connectors/flink-connector-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/api/persistent/PersistentKafkaSource.java
---
@@ -61,10 +63,14 @@
*
* Note that the autocommit feature of Kafka needs to be disabled for
using this source.
*/
-public class PersistentKafkaSource<OUT> extends
RichParallelSourceFunction<OUT> implements
+public class PersistentKafkaSource<OUT> extends RichSourceFunction<OUT>
implements
ResultTypeQueryable<OUT>,
CheckpointCommitter,
+ ParallelSourceFunction<OUT>,
CheckpointedAsynchronously<long[]> {
--- End diff --
Please have a RichParallelSourceFunction instead.
> Checkpoint barrier initiation at source is not aligned with snapshotting
> ------------------------------------------------------------------------
>
> Key: FLINK-2098
> URL: https://issues.apache.org/jira/browse/FLINK-2098
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Stephan Ewen
> Assignee: Aljoscha Krettek
> Priority: Blocker
> Fix For: 0.9
>
>
> The stream source does not properly align the emission of checkpoint barriers
> with the drawing of snapshots.
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