tillrohrmann commented on a change in pull request #7320: [FLINK-11171] Avoid
concurrent usage of StateSnapshotTransformer
URL: https://github.com/apache/flink/pull/7320#discussion_r247969937
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/state/StateBackendTestBase.java
##########
@@ -3902,6 +3906,84 @@ public void testParallelAsyncSnapshots() throws
Exception {
}
}
+ @Test
+ public void testNonConcurrentSnapshotTransformerAccess() throws
Exception {
+ Random rnd = new Random();
+ BlockerCheckpointStreamFactory streamFactory = new
BlockerCheckpointStreamFactory(1024 * 1024);
+ AbstractKeyedStateBackend<Integer> backend = null;
+ try {
+ backend = createKeyedBackend(IntSerializer.INSTANCE);
+ InternalValueState<Integer, VoidNamespace, String>
valueState = backend.createInternalState(
+ VoidNamespaceSerializer.INSTANCE,
+ new ValueStateDescriptor<>("test",
StringSerializer.INSTANCE),
+
createSingleThreadAccessCheckingStateSnapshotTransformFactory());
+
+ valueState.setCurrentNamespace(VoidNamespace.INSTANCE);
+
+ for (int i = 0; i < 100; i++) {
+ backend.setCurrentKey(i);
+
valueState.update(StringUtils.getRandomString(rnd,5, 10));
Review comment:
whitespace missing
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