Package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo

Examples of org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.handle()

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    fs.handle(new NodeUpdateSchedulerEvent(n1));
    Allocation allocation3 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation3", 0, allocation3.getContainers().size());
   
    // verify n2 is not qualified to be allocated
    fs.handle(new NodeUpdateSchedulerEvent(n2));
    Allocation allocation4 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation4", 0, allocation4.getContainers().size());
   
    // verify n3 is not qualified to be allocated
    fs.handle(new NodeUpdateSchedulerEvent(n3));
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    fs.handle(new NodeUpdateSchedulerEvent(n2));
    Allocation allocation4 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation4", 0, allocation4.getContainers().size());
   
    // verify n3 is not qualified to be allocated
    fs.handle(new NodeUpdateSchedulerEvent(n3));
    Allocation allocation5 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation5", 0, allocation5.getContainers().size());
   
    fs.handle(new NodeUpdateSchedulerEvent(n4));
    Allocation allocation6 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
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    // verify n3 is not qualified to be allocated
    fs.handle(new NodeUpdateSchedulerEvent(n3));
    Allocation allocation5 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation5", 0, allocation5.getContainers().size());
   
    fs.handle(new NodeUpdateSchedulerEvent(n4));
    Allocation allocation6 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation6", 1, allocation6.getContainers().size());
   
    containerList = allocation6.getContainers();
    for (Container container : containerList) {
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    FifoScheduler fs = (FifoScheduler) rm.getResourceScheduler();

    // Add a node
    RMNode n1 =
        MockNodes.newNodeInfo(0, MockNodes.newResource(4 * GB), 1, "127.0.0.2");
    fs.handle(new NodeAddedSchedulerEvent(n1));
   
    // Add two applications
    ApplicationId appId1 = BuilderUtils.newApplicationId(100, 1);
    ApplicationAttemptId appAttemptId1 = BuilderUtils.newApplicationAttemptId(
        appId1, 1);
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    ApplicationId appId1 = BuilderUtils.newApplicationId(100, 1);
    ApplicationAttemptId appAttemptId1 = BuilderUtils.newApplicationAttemptId(
        appId1, 1);
    SchedulerEvent event1 = new AppAddedSchedulerEvent(appAttemptId1, "queue",
        "user");
    fs.handle(event1);

    ApplicationId appId2 = BuilderUtils.newApplicationId(200, 2);
    ApplicationAttemptId appAttemptId2 = BuilderUtils.newApplicationAttemptId(
        appId2, 1);
    SchedulerEvent event2 = new AppAddedSchedulerEvent(appAttemptId2, "queue",
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    ApplicationId appId2 = BuilderUtils.newApplicationId(200, 2);
    ApplicationAttemptId appAttemptId2 = BuilderUtils.newApplicationAttemptId(
        appId2, 1);
    SchedulerEvent event2 = new AppAddedSchedulerEvent(appAttemptId2, "queue",
        "user");
    fs.handle(event2);

    List<ContainerId> emptyId = new ArrayList<ContainerId>();
    List<ResourceRequest> emptyAsk = new ArrayList<ResourceRequest>();

    // Set up resource requests
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    ask2.add(BuilderUtils.newResourceRequest(BuilderUtils.newPriority(0),
        ResourceRequest.ANY, BuilderUtils.newResource(2 * GB, 1), 1));
    fs.allocate(appAttemptId2, ask2, emptyId, null, null);
   
    // Trigger container assignment
    fs.handle(new NodeUpdateSchedulerEvent(n1));
   
    // Get the allocation for the applications and verify headroom
    Allocation allocation1 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("Allocation headroom", 1 * GB,
        allocation1.getResourceLimit().getMemory());
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    fs.reinitialize(conf, null, null);

    RMNode n1 = MockNodes.newNodeInfo(0, MockNodes.newResource(4 * GB), 1);
    RMNode n2 = MockNodes.newNodeInfo(0, MockNodes.newResource(2 * GB), 2);

    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeAddedSchedulerEvent(n2));
    List<ContainerStatus> emptyList = new ArrayList<ContainerStatus>();
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));
    Assert.assertEquals(6 * GB, fs.getRootQueueMetrics().getAvailableMB());

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    RMNode n1 = MockNodes.newNodeInfo(0, MockNodes.newResource(4 * GB), 1);
    RMNode n2 = MockNodes.newNodeInfo(0, MockNodes.newResource(2 * GB), 2);

    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeAddedSchedulerEvent(n2));
    List<ContainerStatus> emptyList = new ArrayList<ContainerStatus>();
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));
    Assert.assertEquals(6 * GB, fs.getRootQueueMetrics().getAvailableMB());

    // reconnect n1 with downgraded memory
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    RMNode n2 = MockNodes.newNodeInfo(0, MockNodes.newResource(2 * GB), 2);

    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeAddedSchedulerEvent(n2));
    List<ContainerStatus> emptyList = new ArrayList<ContainerStatus>();
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));
    Assert.assertEquals(6 * GB, fs.getRootQueueMetrics().getAvailableMB());

    // reconnect n1 with downgraded memory
    n1 = MockNodes.newNodeInfo(0, MockNodes.newResource(2 * GB), 1);
    fs.handle(new NodeRemovedSchedulerEvent(n1));
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