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https://issues.apache.org/jira/browse/FLINK-5056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15668573#comment-15668573
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ASF GitHub Bot commented on FLINK-5056:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2797#discussion_r88127261
--- Diff:
flink-streaming-connectors/flink-connector-filesystem/src/test/java/org/apache/flink/streaming/connectors/fs/bucketing/BucketingSinkFaultTolerance2ITCase.java
---
@@ -61,6 +62,10 @@
* high. This provokes the case that the sink restarts without any
checkpoint having been performed.
* This tests the initial cleanup of pending/in-progress files.
*/
+
+// I suggest to remove this as we no longer clean up lingering files.
+
+@Ignore
public class BucketingSinkFaultTolerance2ITCase extends
StreamFaultToleranceTestBase {
--- End diff --
according to the javadocs we can indeed remove this test. Even without
that, i can't quite figure out where the test actually verified that the files
were deleted :/
> BucketingSink deletes valid data when checkpoint notification is slow.
> ----------------------------------------------------------------------
>
> Key: FLINK-5056
> URL: https://issues.apache.org/jira/browse/FLINK-5056
> Project: Flink
> Issue Type: Bug
> Components: filesystem-connector
> Affects Versions: 1.1.3
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Fix For: 1.2.0
>
>
> Currently if BucketingSink receives no data after a checkpoint and then a
> notification about a previous checkpoint arrives, it clears its state. This
> can
> lead to not committing valid data about intermediate checkpoints for whom
> a notification has not arrived yet. As a simple sequence that illustrates the
> problem:
> -> input data
> -> snapshot(0)
> -> input data
> -> snapshot(1)
> -> no data
> -> notifyCheckpointComplete(0)
> the last will clear the state of the Sink without committing as final the
> data
> that arrived for checkpoint 1.
>
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