rm2.waitForState(app.getApplicationId(), RMAppState.ACCEPTED);
}
@Test
public void testRMStateStoreDispatcherDrainedOnRMStop() throws Exception {
MemoryRMStateStore memStore = new MemoryRMStateStore() {
volatile boolean wait = true;
@Override
public void serviceStop() throws Exception {
// Unblock app saving request.
wait = false;
super.serviceStop();
}
@Override
protected void handleStoreEvent(RMStateStoreEvent event) {
// Block app saving request.
while (wait);
super.handleStoreEvent(event);
}
};
memStore.init(conf);
// start RM
final MockRM rm1 = new MockRM(conf, memStore);
rm1.start();
// create apps.
final ArrayList<RMApp> appList = new ArrayList<RMApp>();
final int NUM_APPS = 5;
for (int i = 0; i < NUM_APPS; i++) {
RMApp app = rm1.submitApp(200, "name", "user",
new HashMap<ApplicationAccessType, String>(), false,
"default", -1, null, "MAPREDUCE", false);
appList.add(app);
rm1.waitForState(app.getApplicationId(), RMAppState.NEW_SAVING);
}
// all apps's saving request are now enqueued to RMStateStore's dispatcher
// queue, and will be processed once rm.stop() is called.
// Nothing exist in state store before stop is called.
Map<ApplicationId, ApplicationState> rmAppState =
memStore.getState().getApplicationState();
Assert.assertTrue(rmAppState.size() == 0);
// stop rm
rm1.stop();