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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    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));
    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));

    Assert.assertEquals(4 * GB, fs.getRootQueueMetrics().getAvailableMB());
  }
 
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    // reconnect n1 with downgraded memory
    n1 = MockNodes.newNodeInfo(0, MockNodes.newResource(2 * GB), 1);
    fs.handle(new NodeRemovedSchedulerEvent(n1));
    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));

    Assert.assertEquals(4 * GB, fs.getRootQueueMetrics().getAvailableMB());
  }
 
  @Test
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    rm.start();
    FifoScheduler fs = (FifoScheduler) rm.getResourceScheduler();

    // Add a node
    RMNode n1 = MockNodes.newNodeInfo(0, MockNodes.newResource(4 * GB), 1);
    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<ContainerStatus> emptyStatus = new ArrayList<ContainerStatus>();
    List<ContainerId> emptyId = new ArrayList<ContainerId>();
    List<ResourceRequest> emptyAsk = new ArrayList<ResourceRequest>();
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    ask2.add(BuilderUtils.newResourceRequest(BuilderUtils.newPriority(0), "*",
        BuilderUtils.newResource(2 * GB), 1));
    fs.allocate(appAttemptId2, ask2, emptyId);
   
    // Trigger container assignment
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyStatus, emptyStatus));
   
    // Get the allocation for the applications and verify headroom
    Allocation allocation1 = fs.allocate(appAttemptId1, emptyAsk, emptyId);
    Assert.assertEquals("Allocation headroom", 1 * GB,
        allocation1.getResourceLimit().getMemory());
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    fs.reinitialize(conf, 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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    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));
    fs.handle(new NodeAddedSchedulerEvent(n1));
    fs.handle(new NodeUpdateSchedulerEvent(n1, emptyList, emptyList));

    Assert.assertEquals(4 * GB, fs.getRootQueueMetrics().getAvailableMB());
  }
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