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org.apache.helix.manager.zk.ZkClient.createEphemeral()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-14 10:00:49 32 4
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本文整理了Java中org.apache.helix.manager.zk.ZkClient.createEphemeral()方法的一些代码示例,展示了ZkClient.createEphemeral()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。ZkClient.createEphemeral()方法的具体详情如下:
包路径:org.apache.helix.manager.zk.ZkClient
类名称:ZkClient
方法名:createEphemeral

ZkClient.createEphemeral介绍

暂无

代码示例

代码示例来源:origin: org.apache.helix/helix-core

zkClient.createEphemeral("/" + clusterName + "/CONFIGS/CLUSTER/verify");
} catch (ZkNodeExistsException ex) {
 LOG.error("There is already a verification in progress", ex);

代码示例来源:origin: apache/helix

@Test
public void testCloseZkClient() {
 String className = TestHelper.getTestClassName();
 String methodName = TestHelper.getTestMethodName();
 String clusterName = className + "_" + methodName;
 System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
 ZkClient client =
   new ZkClient(ZK_ADDR, HelixZkClient.DEFAULT_SESSION_TIMEOUT,
     HelixZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
 String path = String.format("/%s", clusterName);
 client.createEphemeral(path);
 client.close();
 Assert.assertFalse(_gZkClient.exists(path), "Ephemeral node: " + path
   + " should be removed after ZkClient#close()");
 System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

代码示例来源:origin: apache/helix

@Test
public void testZkSessionExpiry() throws Exception {
 String className = TestHelper.getTestClassName();
 String methodName = TestHelper.getTestMethodName();
 String clusterName = className + "_" + methodName;
 System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
 ZkClient client =
   new ZkClient(ZK_ADDR, HelixZkClient.DEFAULT_SESSION_TIMEOUT,
     HelixZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
 String path = String.format("/%s", clusterName);
 client.createEphemeral(path);
 String oldSessionId = ZkTestHelper.getSessionId(client);
 ZkTestHelper.expireSession(client);
 String newSessionId = ZkTestHelper.getSessionId(client);
 Assert.assertNotSame(newSessionId, oldSessionId);
 Assert.assertFalse(client.exists(path), "Ephemeral znode should be gone after session expiry");
 client.close();
 System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

代码示例来源:origin: apache/helix

@Test
public void testCloseZkClientInZkClientEventThread() throws Exception {
 String className = TestHelper.getTestClassName();
 String methodName = TestHelper.getTestMethodName();
 String clusterName = className + "_" + methodName;
 System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
 final CountDownLatch waitCallback = new CountDownLatch(1);
 final ZkClient client =
   new ZkClient(ZK_ADDR, HelixZkClient.DEFAULT_SESSION_TIMEOUT,
     HelixZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
 String path = String.format("/%s", clusterName);
 client.createEphemeral(path);
 client.subscribeDataChanges(path, new IZkDataListener() {
  @Override
  public void handleDataDeleted(String dataPath) throws Exception {
  }
  @Override
  public void handleDataChange(String dataPath, Object data) throws Exception {
   client.close();
   waitCallback.countDown();
  }
 });
 client.writeData(path, new ZNRecord("test"));
 waitCallback.await();
 Assert.assertFalse(_gZkClient.exists(path), "Ephemeral node: " + path
   + " should be removed after ZkClient#close() in its own event-thread");
 System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
}

代码示例来源:origin: org.apache.helix/helix-core

retry = false;
try {
 _zkclient.createEphemeral(liveInstancePath, liveInstance.getRecord());
 LOG.info("LiveInstance created, path: " + liveInstancePath + ", sessionId: " + liveInstance.getSessionId());
} catch (ZkNodeExistsException e) {
 _zkclient.createEphemeral(liveInstancePath, liveInstance.getRecord());
 LOG.info("LiveInstance created, path: " + liveInstancePath + ", sessionId: " + liveInstance.getSessionId());
} catch (Exception e) {

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