1u0 commented on a change in pull request #8741: [FLINK-12752] Add Option to
Pass Seed for JobID Hash for StandaloneJobClusterEntrypoint
URL: https://github.com/apache/flink/pull/8741#discussion_r297702281
##########
File path: flink-core/src/main/java/org/apache/flink/api/common/JobID.java
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@@ -64,27 +67,48 @@ public JobID(long lowerPart, long upperPart) {
public JobID(byte[] bytes) {
super(bytes);
}
-
+
//
------------------------------------------------------------------------
// Static factory methods
//
------------------------------------------------------------------------
/**
* Creates a new (statistically) random JobID.
- *
+ *
* @return A new random JobID.
*/
public static JobID generate() {
return new JobID();
}
+ /**
+ * Creates a new JobID based on the given seed. The JobIDs returned by
two invocations of this
+ * method with the same seed will be equal.
+ *
+ * @param seed the seed to base the generation of the JobID
+ *
+ * @return A new JobID based on the given seed.
+ */
+ public static JobID fromSeed(String seed) {
Review comment:
Just, imo, I'd move this method outside of `JobID` class
(`StandaloneJobClusterEntryPoint` is probable host candidate):
- this method is now less "generic" as before (although, before it was also
specific);
- it's computationally not cheap, and may be unintentionally used in other
places.
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