Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/750#discussion_r46290038
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/executiongraph/ExecutionGraph.java
---
@@ -112,19 +114,24 @@
/** The log object used for debugging. */
static final Logger LOG = LoggerFactory.getLogger(ExecutionGraph.class);
-
+
+ private static final int NUMBER_OF_SUCCESSFUL_CHECKPOINTS_TO_RETAIN = 1;
--- End diff --
IntelliJ says that this variable is never used.
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