Package org.apache.helix.manager.zk

Examples of org.apache.helix.manager.zk.ZkClient.readData()

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    String zkAddr = "localhost:2189";
    ZkServer zkServer = TestHelper.startZkServer(zkAddr);
    ZkClient zkClient = ZKClientPool.getZkClient(zkAddr);

    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    ZNRecord record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);

    TestHelper.stopZkServer(zkServer);

    // restart zk
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    // restart zk
    zkServer = TestHelper.startZkServer(zkAddr);
    try {
      zkClient = ZKClientPool.getZkClient(zkAddr);
      record = zkClient.readData("/" + testName);
      Assert.fail("should fail on zk no node exception");
    } catch (ZkNoNodeException e) {
      // OK
    } catch (Exception e) {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
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    } catch (Exception e) {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
    }

    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);

    zkClient.close();
    TestHelper.stopZkServer(zkServer);
    System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
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    String zkAddr = "localhost:2189";
    ZkServer zkServer = TestHelper.startZkServer(zkAddr);
    ZkClient zkClient = ZKClientPool.getZkClient(zkAddr);

    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    ZNRecord record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);

    TestHelper.stopZkServer(zkServer);

    // restart zk
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    // restart zk
    zkServer = TestHelper.startZkServer(zkAddr);
    try {
      zkClient = ZKClientPool.getZkClient(zkAddr);
      record = zkClient.readData("/" + testName);
      Assert.fail("should fail on zk no node exception");
    } catch (ZkNoNodeException e) {
      // OK
    } catch (Exception e) {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
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    } catch (Exception e) {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
    }

    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);

    zkClient.close();
    TestHelper.stopZkServer(zkServer);
    System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
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  public void post(String zkServer, Message message, String clusterName, String instanceName) {
    ZkClient client = new ZkClient(zkServer);
    client.setZkSerializer(new ZNRecordSerializer());
    String path = HelixUtil.getMessagePath(clusterName, instanceName) + "/" + message.getId();
    client.delete(path);
    ZNRecord record = client.readData(HelixUtil.getLiveInstancePath(clusterName, instanceName));
    message.setTgtSessionId(SessionId.from(record.getSimpleField(
        LiveInstanceProperty.SESSION_ID.toString()).toString()));
    message.setTgtName(record.getId());
    // System.out.println(message);
    client.createPersistent(path, message.getRecord());
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    String zkAddr = "localhost:2189";
    ZkServer zkServer = TestHelper.startZkSever(zkAddr);
    ZkClient zkClient = ZKClientPool.getZkClient(zkAddr);
   
    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    ZNRecord record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);
   
    TestHelper.stopZkServer(zkServer);
   
    // restart zk
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    // restart zk
    zkServer = TestHelper.startZkSever(zkAddr);
    try
    {
      zkClient = ZKClientPool.getZkClient(zkAddr);
      record = zkClient.readData("/" + testName);
      Assert.fail("should fail on zk no node exception");
    } catch (ZkNoNodeException e)
    {
      // OK
    } catch (Exception e)
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    {
      Assert.fail("should not fail on exception other than ZkNoNodeException");
    }
   
    zkClient.createPersistent("/" + testName, new ZNRecord(testName));
    record = zkClient.readData("/" + testName);
    Assert.assertEquals(record.getId(), testName);
   
    zkClient.close();
    TestHelper.stopZkServer(zkServer);
    System.out.println("END " + testName + " at " + new Date(System.currentTimeMillis()));
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