Example usage for org.apache.hadoop.yarn.event DrainDispatcher start

Introduction

In this page you can find the example usage for org.apache.hadoop.yarn.event DrainDispatcher start.

Prototype

@Override
public void start() 

Source Link

Usage

From source file:org.apache.tez.dag.app.rm.node.TestAMNodeMap.java

License:Apache License

@Test
@SuppressWarnings({ "resource", "rawtypes" })
public void testHealthUpdateKnownNode() {

    DrainDispatcher dispatcher = new DrainDispatcher();
    dispatcher.init(new Configuration());
    dispatcher.start();
    EventHandler eventHandler = dispatcher.getEventHandler();

    AppContext appContext = mock(AppContext.class);

    AMNodeMap amNodeMap = new AMNodeMap(eventHandler, appContext);

    NodeId nodeId = NodeId.newInstance("host1", 2342);
    amNodeMap.nodeSeen(nodeId);/*from   w  w  w.ja  va 2 s.  c  o m*/

    NodeReport nodeReport = generateNodeReport(nodeId, NodeState.UNHEALTHY);
    amNodeMap.handle(new AMNodeEventStateChanged(nodeReport));
    dispatcher.await();
    assertEquals(AMNodeState.UNHEALTHY, amNodeMap.get(nodeId).getState());
    dispatcher.stop();
}

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