Package org.apache.twill.zookeeper

Examples of org.apache.twill.zookeeper.ZKClientService.create()

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  public void testBrokerChange() throws Exception {
    // Create a new namespace in ZK for Kafka server for this test case
    String connectionStr = zkServer.getConnectionStr() + "/broker_change";
    ZKClientService zkClient = ZKClientService.Builder.of(connectionStr).build();
    zkClient.startAndWait();
    zkClient.create("/", null, CreateMode.PERSISTENT).get();

    // Start a new kafka server
    File logDir = TMP_FOLDER.newFolder();
    EmbeddedKafkaServer server = new EmbeddedKafkaServer(generateKafkaConfig(connectionStr, logDir));
    server.startAndWait();
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    try {
      final String namespace = Joiner.on('/').join("/twill", RunIds.generate(), "runnables", "Runner1");

      final ZKClientService zkClient = ZKClientService.Builder.of(zkServer.getConnectionStr()).build();
      zkClient.startAndWait();
      zkClient.create(namespace, null, CreateMode.PERSISTENT).get();

      try {
        JsonObject content = new JsonObject();
        content.addProperty("containerId", "container-123");
        content.addProperty("host", "localhost");
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        String path = "/" + zkNamespace;
        LOG.info(String.format("Creating zookeeper namespace %s", path));

        ZKOperations.ignoreError(
          client.create(path, null, CreateMode.PERSISTENT),
          KeeperException.NodeExistsException.class, path).get();

        client.stopAndWait();
        zkConnectStr = String.format("%s/%s", zkConnectStr, zkNamespace);
      } catch (Exception e) {
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