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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    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 AppAttemptAddedSchedulerEvent(appAttemptId1, "queue", "user");
    fs.handle(event1);

    ApplicationId appId2 = BuilderUtils.newApplicationId(200, 2);
    ApplicationAttemptId appAttemptId2 = BuilderUtils.newApplicationAttemptId(
        appId2, 1);
    SchedulerEvent event2 =
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    ApplicationId appId2 = BuilderUtils.newApplicationId(200, 2);
    ApplicationAttemptId appAttemptId2 = BuilderUtils.newApplicationAttemptId(
        appId2, 1);
    SchedulerEvent event2 =
        new AppAttemptAddedSchedulerEvent(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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    ask1.add(BuilderUtils.newResourceRequest(BuilderUtils.newPriority(0),
        ResourceRequest.ANY, BuilderUtils.newResource(GB, 1), 1));
    fs.allocate(appAttemptId1, ask1, emptyId, Collections.singletonList(host_1_0), null);
   
    // Trigger container assignment
    fs.handle(new NodeUpdateSchedulerEvent(n3));
   
    // Get the allocation for the application and verify no allocation on blacklist node
    Allocation allocation1 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
   
    Assert.assertEquals("allocation1", 0, allocation1.getContainers().size());
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    Allocation allocation1 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
   
    Assert.assertEquals("allocation1", 0, allocation1.getContainers().size());

    // verify host_1_1 can get allocated as not in blacklist
    fs.handle(new NodeUpdateSchedulerEvent(n4));
    Allocation allocation2 = fs.allocate(appAttemptId1, emptyAsk, emptyId, null, null);
    Assert.assertEquals("allocation2", 1, allocation2.getContainers().size());
    List<Container> containerList = allocation2.getContainers();
    for (Container container : containerList) {
      Assert.assertEquals("Container is allocated on n4",
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    ask2.add(BuilderUtils.newResourceRequest(BuilderUtils.newPriority(0),
        ResourceRequest.ANY, BuilderUtils.newResource(GB, 1), 1));
    fs.allocate(appAttemptId1, ask2, emptyId, Collections.singletonList("rack0"), null);
   
    // verify n1 is not qualified to be allocated
    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));
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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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