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https://issues.apache.org/jira/browse/FLINK-5800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15867791#comment-15867791
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ASF GitHub Bot commented on FLINK-5800:
---------------------------------------
Github user uce commented on a diff in the pull request:
https://github.com/apache/flink/pull/3312#discussion_r101271401
--- Diff:
flink-streaming-java/src/test/java/org/apache/flink/streaming/util/AbstractStreamOperatorTestHarness.java
---
@@ -513,7 +509,9 @@ public void notifyOfCompletedCheckpoint(long
checkpointId) throws Exception {
/**
* Calls {@link
StreamCheckpointedOperator#restoreState(FSDataInputStream)} if
* the operator implements this interface.
- */ @Deprecated
+ */
+ @Deprecated
+
--- End diff --
empty line
> Make sure that the CheckpointStreamFactory is instantiated once per operator
> only
> ---------------------------------------------------------------------------------
>
> Key: FLINK-5800
> URL: https://issues.apache.org/jira/browse/FLINK-5800
> Project: Flink
> Issue Type: Improvement
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.3.0, 1.2.1
>
>
> Previously, the {{CheckpointSteamFactory}} was created once per checkpoint,
> and its repeated initialization logic (like ensuring existence of the parent
> directory) caused unnecessary load on some file systems at very large scale.
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