zentol commented on a change in pull request #19121:
URL: https://github.com/apache/flink/pull/19121#discussion_r829068119
##########
File path:
flink-kubernetes/src/main/java/org/apache/flink/kubernetes/highavailability/KubernetesStateHandleStore.java
##########
@@ -496,12 +498,14 @@ public boolean releaseAndTryRemove(String key) throws
Exception {
Objects.requireNonNull(configMap.getData().remove(key));
}
return Optional.of(configMap);
+ } else {
+ stateHandleDoesNotExist.set(true);
}
return Optional.empty();
})
.thenCompose(
updated -> {
- if (updated && stateHandleRefer.get() != null) {
+ if (stateHandleRefer.get() != null) {
Review comment:
Why are we now assuming that update == true if the ref isn't null? Even
if it's currently the case, that seems to rely on implementation details of the
KubeClient.
##########
File path:
flink-kubernetes/src/main/java/org/apache/flink/kubernetes/highavailability/KubernetesStateHandleStore.java
##########
@@ -464,13 +465,14 @@ public StringResourceVersion exists(String key) throws
Exception {
* It returns the {@link RetrievableStateHandle} stored under the given
state node if any.
*
* @param key Key to be removed from ConfigMap
- * @return True if the state handle is removed successfully
+ * @return True if the state handle isn't listed anymore.
* @throws Exception if removing the key or discarding the state failed
*/
@Override
public boolean releaseAndTryRemove(String key) throws Exception {
checkNotNull(key, "Key in ConfigMap.");
- final AtomicReference<RetrievableStateHandle<T>> stateHandleRefer =
new AtomicReference<>();
+ final AtomicReference<StateObject> stateHandleRefer = new
AtomicReference<>();
+ final AtomicBoolean stateHandleDoesNotExist = new AtomicBoolean(false);
Review comment:
:/
it's not really nice that we need this secondary channel to get results from
the update function.
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/jobmanager/DefaultJobGraphStoreTest.java
##########
@@ -220,14 +221,23 @@ public void testGlobalCleanupWithNonExistName() throws
Exception {
.globalCleanupAsync(testingJobGraph.getJobID(),
Executors.directExecutor())
.join();
- try {
- removeFuture.get(timeout, TimeUnit.MILLISECONDS);
- fail(
- "We should get an expected timeout because we are removing
a non-existed job graph.");
- } catch (TimeoutException ex) {
- // expected
- }
- assertThat(removeFuture.isDone(), is(false));
+ removeFuture.join();
+ assertThat(removeFuture.isDone(), is(true));
Review comment:
there's no way for this to fail.
##########
File path:
flink-kubernetes/src/test/java/org/apache/flink/kubernetes/highavailability/KubernetesStateHandleStoreTest.java
##########
@@ -803,6 +803,34 @@ public void testRemove() throws Exception {
};
}
+ @Test
+ public void testRemoveOfNonExistingState() throws Exception {
+ new Context() {
+ {
+ runTest(
+ () -> {
+ leaderCallbackGrantLeadership();
+
+ final KubernetesStateHandleStore<
+
TestingLongStateHandleHelper.LongStateHandle>
+ store =
+ new KubernetesStateHandleStore<>(
+ flinkKubeClient,
+ LEADER_CONFIGMAP_NAME,
+ longStateStorage,
+ filter,
+ LOCK_IDENTITY);
+ assertThat(store.getAllAndLock().size(), is(0));
+ assertThat(store.releaseAndTryRemove(key),
is(true));
+ assertThat(store.getAllAndLock().size(), is(0));
+
+ // State should also be discarded.
Review comment:
shouldn't the count then be 1?...
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