tillrohrmann commented on a change in pull request #9242:
[FLINK-13408][runtime] Schedule
StandaloneResourceManager.setFailUnfulfillableRequest whenever the leadership
is acquired
URL: https://github.com/apache/flink/pull/9242#discussion_r308268973
##########
File path:
flink-runtime/src/test/java/org/apache/flink/runtime/resourcemanager/StandaloneResourceManagerTest.java
##########
@@ -83,6 +83,24 @@ public void testNoStartupPeriod() throws Exception {
rm.close();
}
+ @Test
+ public void testStartUpPeriodAfterLeadershipSwitch() throws Exception {
+ final TestingStandaloneResourceManager rm =
createResourceManager(Time.milliseconds(1L));
+
+ final Deadline deadline1 =
Deadline.fromNow(Duration.ofSeconds(10L));
+ assertHappensUntil(() ->
rm.isFailingUnfulfillableRequestAsync().join(), deadline1);
+
+ rm.rmServices.revokeLeadership();
+
+ final Deadline deadline2 =
Deadline.fromNow(Duration.ofSeconds(10L));
+ assertHappensUntil(() ->
!rm.rmServices.slotManager.isFailingUnfulfillableRequest(), deadline2);
Review comment:
This pattern is problematic. We are accessing state of the `SlotManager`
which is owned by the `ResourceManager` and which should only be accessed from
the `RpcEndpoint's` main thread. Otherwise we might run into visibility issues.
I would suggest to rather test the behaviour of the RM via its public API
instead of inspecting its internal state.
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