Github user StefanRRichter commented on a diff in the pull request:
https://github.com/apache/flink/pull/3925#discussion_r116977867
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/heap/HeapKeyedStateBackend.java
---
@@ -385,6 +386,19 @@ private void
restorePartitionedState(Collection<KeyedStateHandle> state) throws
serializationProxy.read(inView);
+ // check for key serializer compatibility; this
also reconfigures the
+ // key serializer to be compatible, if it is
required and is possible
+ if
(StateMigrationUtil.resolveCompatibilityResult(
+
serializationProxy.getKeySerializer(),
+
TypeSerializerSerializationProxy.ClassNotFoundDummyTypeSerializer.class,
+
serializationProxy.getKeySerializerConfigSnapshot(),
+ (TypeSerializer) keySerializer)
+ .isRequiresMigration()) {
+
+ throw new RuntimeException("The new key
serializer is not compatible to read previous keys. " +
--- End diff --
Same here.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
