Package org.apache.hadoop.yarn.server.nodemanager.containermanager

Examples of org.apache.hadoop.yarn.server.nodemanager.containermanager.AuxServices

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        ServiceA.class, Service.class);
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Bsrv"),
        ServiceB.class, Service.class);
    conf.setInt("A.expected.init", 1);
    conf.setInt("B.expected.stop", 1);
    final AuxServices aux = new AuxServices();
    aux.init(conf);
    aux.start();

    ApplicationId appId = RecordFactoryProvider.getRecordFactory(null).newRecordInstance(ApplicationId.class);
    appId.setId(65);
    ByteBuffer buf = ByteBuffer.allocate(6);
    buf.putChar('A');
    buf.putInt(65);
    buf.flip();
    AuxServicesEvent event = new AuxServicesEvent(
        AuxServicesEventType.APPLICATION_INIT, "user0", appId, "Asrv", buf);
    aux.handle(event);
    appId.setId(66);
    event = new AuxServicesEvent(
        AuxServicesEventType.APPLICATION_STOP, "user0", appId, "Bsrv", null);
    // verify all services got the stop event
    aux.handle(event);
    Collection<AuxServices.AuxiliaryService> servs = aux.getServices();
    for (AuxServices.AuxiliaryService serv: servs) {
      ArrayList<Integer> appIds = ((LightService)serv).getAppIdsStopped();
      assertEquals("app not properly stopped", 1, appIds.size());
      assertTrue("wrong app stopped", appIds.contains((Integer)66));
    }
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    conf.setStrings(YarnConfiguration.NM_AUX_SERVICES, new String[] { "Asrv", "Bsrv" });
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Asrv"),
        ServiceA.class, Service.class);
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Bsrv"),
        ServiceB.class, Service.class);
    final AuxServices aux = new AuxServices();
    aux.init(conf);

    int latch = 1;
    for (Service s : aux.getServices()) {
      assertEquals(INITED, s.getServiceState());
      if (s instanceof ServiceA) { latch *= 2; }
      else if (s instanceof ServiceB) { latch *= 3; }
      else fail("Unexpected service type " + s.getClass());
    }
    assertEquals("Invalid mix of services", 6, latch);
    aux.start();
    for (Service s : aux.getServices()) {
      assertEquals(STARTED, s.getServiceState());
    }

    aux.stop();
    for (Service s : aux.getServices()) {
      assertEquals(STOPPED, s.getServiceState());
    }
  }
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    conf.setStrings(YarnConfiguration.NM_AUX_SERVICES, new String[] { "Asrv", "Bsrv" });
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Asrv"),
        ServiceA.class, Service.class);
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Bsrv"),
        ServiceB.class, Service.class);
    final AuxServices aux = new AuxServices();
    aux.init(conf);

    int latch = 1;
    for (Service s : aux.getServices()) {
      assertEquals(INITED, s.getServiceState());
      if (s instanceof ServiceA) { latch *= 2; }
      else if (s instanceof ServiceB) { latch *= 3; }
      else fail("Unexpected service type " + s.getClass());
    }
    assertEquals("Invalid mix of services", 6, latch);
    aux.start();
    for (Service s : aux.getServices()) {
      assertEquals(STARTED, s.getServiceState());
    }

    Map<String, ByteBuffer> meta = aux.getMeta();
    assertEquals(2, meta.size());
    assertEquals("A", new String(meta.get("Asrv").array()));
    assertEquals("B", new String(meta.get("Bsrv").array()));

    aux.stop();
    for (Service s : aux.getServices()) {
      assertEquals(STOPPED, s.getServiceState());
    }
  }
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    conf.setStrings(YarnConfiguration.NM_AUX_SERVICES, new String[] { "Asrv", "Bsrv" });
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Asrv"),
        ServiceA.class, Service.class);
    conf.setClass(String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, "Bsrv"),
        ServiceB.class, Service.class);
    final AuxServices aux = new AuxServices();
    aux.init(conf);
    aux.start();

    Service s = aux.getServices().iterator().next();
    s.stop();
    assertEquals("Auxiliary service stopped, but AuxService unaffected.",
        STOPPED, aux.getServiceState());
    assertTrue(aux.getServices().isEmpty());
  }
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