Zakelly commented on code in PR #27069:
URL: https://github.com/apache/flink/pull/27069#discussion_r2396494566
##########
flink-runtime/src/main/java/org/apache/flink/runtime/state/KeyedStateBackend.java:
##########
@@ -166,6 +167,13 @@ default boolean isSafeToReuseKVState() {
return false;
}
+ /**
+ * @return fixed lower-case string identifying the type of the underlying
state backend, e.g.
+ * rocksdb, hashmap, forst, batch, or unknown.
+ */
+ @Experimental
+ String getBackendTypeIdentifier();
Review Comment:
Shall we give default implementation returning 'unknown'?
##########
flink-runtime/src/main/java/org/apache/flink/runtime/state/KeyedStateBackend.java:
##########
@@ -166,6 +167,13 @@ default boolean isSafeToReuseKVState() {
return false;
}
+ /**
+ * @return fixed lower-case string identifying the type of the underlying
state backend, e.g.
+ * rocksdb, hashmap, forst, batch, or unknown.
+ */
+ @Experimental
+ String getBackendTypeIdentifier();
Review Comment:
Shall we give a default implementation returning 'unknown'?
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