dawidwys commented on a change in pull request #7747: [FLINK-11653][DataStream]
Add configuration to enforce custom UID's o…
URL: https://github.com/apache/flink/pull/7747#discussion_r258971541
##########
File path:
flink-core/src/main/java/org/apache/flink/api/common/ExecutionConfig.java
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@@ -612,6 +614,41 @@ public boolean hasGenericTypesDisabled() {
return disableGenericTypes;
}
+ /**
+ * Enables the Flink runtime to auto-generated UID's for operators.
+ *
+ * @see #disableAutoGeneratedUIDs()
+ */
+ public void enableAutoGeneratedUIDs() {
+ disableAutoGeneratedUid = false;
+ }
+
+ /**
+ * Disable's auto-generated UID's forces users to manually specify UID's
+ * on their datastreams using {@code DataStream#uid} or {@code
DataStream#setUidHash}.
+ *
+ * <p>It is highly recommended that user's specify UID's before
deploying to
+ * production since they are used to match state in savepoints to
operators
+ * in a job. Because auto-generated ID's are likely to change when
modifying
+ * a job, specifying custom ID's allow an application to evolve overtime
Review comment:
```suggestion
* a job, specifying custom IDs allow an application to evolve overtime
```
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