// Add a node
RMNode node1 =
MockNodes
.newNodeInfo(1, Resources.createResource(1024), 1, "127.0.0.1");
NodeAddedSchedulerEvent nodeEvent1 = new NodeAddedSchedulerEvent(node1);
scheduler.handle(nodeEvent1);
// Queue 1 requests full capacity of node
createSchedulingRequest(1024, "queue1", "user1", 1);
scheduler.update();
NodeUpdateSchedulerEvent updateEvent = new NodeUpdateSchedulerEvent(node1);
scheduler.handle(updateEvent);
// Make sure queue 1 is allocated app capacity
assertEquals(1024, scheduler.getQueueManager().getQueue("queue1").
getResourceUsage().getMemory());
// Now queue 2 requests likewise
ApplicationAttemptId attId = createSchedulingRequest(1024, "queue2", "user1", 1);
scheduler.update();
scheduler.handle(updateEvent);
// Make sure queue 2 is waiting with a reservation
assertEquals(0, scheduler.getQueueManager().getQueue("queue2").
getResourceUsage().getMemory());
assertEquals(1024, scheduler.getSchedulerApp(attId).getCurrentReservation().getMemory());
// Now another node checks in with capacity
RMNode node2 =
MockNodes
.newNodeInfo(1, Resources.createResource(1024), 2, "127.0.0.2");
NodeAddedSchedulerEvent nodeEvent2 = new NodeAddedSchedulerEvent(node2);
NodeUpdateSchedulerEvent updateEvent2 = new NodeUpdateSchedulerEvent(node2);
scheduler.handle(nodeEvent2);
scheduler.handle(updateEvent2);
// Make sure this goes to queue 2