Github user gyfora commented on a diff in the pull request:
https://github.com/apache/flink/pull/812#discussion_r32091115
--- Diff:
flink-staging/flink-streaming/flink-streaming-core/src/main/java/org/apache/flink/streaming/api/environment/StreamExecutionEnvironment.java
---
@@ -241,6 +241,31 @@ public StreamExecutionEnvironment
enableCheckpointing(long interval) {
streamGraph.setCheckpointingInterval(interval);
return this;
}
+
+ /**
+ * Method for force-enabling fault-tolerance. Activates monitoring and
+ * backup of streaming operator states even for jobs containing
iterations.
+ *
+ * Please note that the checkpoint/restore guarantees for iterative
jobs are
+ * only best-effort at the moment. Records inside the loops may be lost
+ * during failure.
+ * <p/>
+ * <p/>
+ * Setting this option assumes that the job is used in production and
thus
+ * if not stated explicitly otherwise with calling with the
+ * {@link #setNumberOfExecutionRetries(int numberOfExecutionRetries)}
method
+ * in case of failure the job will be resubmitted to the cluster
+ * indefinitely.
+ *
+ * @param interval
+ * Time interval between state checkpoints in millis
+ */
+ public StreamExecutionEnvironment enableCheckpointing(long interval,
boolean force) {
--- End diff --
I added a test for this
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