List of discoverService() Examples

Examples of discoverService()

org.apache.twill.api.TwillController.discoverService()
Discovers the set of {@link Discoverable} endpoints that provides service for the given service name. @param serviceName Name of the service to discovery. @return A {@link org.apache.twill.discovery.ServiceDiscovered} object representing the result.

Examples of org.apache.twill.api.TwillController.discoverService()

      }
    }, Threads.SAME_THREAD_EXECUTOR);


    Assert.assertTrue(running.await(30, TimeUnit.SECONDS));


    Iterable<Discoverable> echoServices = controller.discoverService("echo");
    Assert.assertTrue(YarnTestUtils.waitForSize(echoServices, 2, 60));


    for (Discoverable discoverable : echoServices) {
      String msg = "Hello: " + discoverable.getSocketAddress();

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Examples of org.apache.twill.api.TwillController.discoverService()


    // Increase number of instances
    controller.changeInstances("EchoServer", 3);
    Assert.assertTrue(YarnTestUtils.waitForSize(echoServices, 3, 60));


    echoServices = controller.discoverService("echo2");


    // Decrease number of instances
    controller.changeInstances("EchoServer", 1);
    Assert.assertTrue(YarnTestUtils.waitForSize(echoServices, 1, 60));

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