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org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-13 09:45:58 26 4
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本文整理了Java中org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker.start()方法的一些代码示例,展示了ZooKeeperNodeTracker.start()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。ZooKeeperNodeTracker.start()方法的具体详情如下:
包路径:org.apache.hadoop.hbase.zookeeper.ZooKeeperNodeTracker
类名称:ZooKeeperNodeTracker
方法名:start

ZooKeeperNodeTracker.start介绍

[英]Starts the tracking of the node in ZooKeeper.

Use #blockUntilAvailable() to block until the node is available or #getData(boolean) to get the data of the node if it is available.
[中]开始跟踪ZooKeeper中的节点。
使用#blockUntilavable()进行阻塞,直到节点可用,或者使用#getData(布尔值)获取节点的数据(如果可用)。

代码示例

代码示例来源:origin: co.cask.hbase/hbase

/**
 * Starts the tracking of the node in ZooKeeper.
 *
 * <p>Use {@link #blockUntilAvailable()} to block until the node is available
 * or {@link #getData(boolean)} to get the data of the node if it is available.
 */
public synchronized void start() {
 this.watcher.registerListener(this);
 try {
  if(ZKUtil.watchAndCheckExists(watcher, node)) {
   byte [] data = ZKUtil.getDataAndWatch(watcher, node);
   if(data != null) {
    this.data = data;
   } else {
    // It existed but now does not, try again to ensure a watch is set
    LOG.debug("Try starting again because there is no data from " + node);
    start();
   }
  }
 } catch (KeeperException e) {
  abortable.abort("Unexpected exception during initialization, aborting", e);
 }
}

代码示例来源:origin: harbby/presto-connectors

/**
 * Starts the tracking of the node in ZooKeeper.
 *
 * <p>Use {@link #blockUntilAvailable()} to block until the node is available
 * or {@link #getData(boolean)} to get the data of the node if it is available.
 */
public synchronized void start() {
 this.watcher.registerListener(this);
 try {
  if(ZKUtil.watchAndCheckExists(watcher, node)) {
   byte [] data = ZKUtil.getDataAndWatch(watcher, node);
   if(data != null) {
    this.data = data;
   } else {
    // It existed but now does not, try again to ensure a watch is set
    LOG.debug("Try starting again because there is no data from " + node);
    start();
   }
  }
 } catch (KeeperException e) {
  abortable.abort("Unexpected exception during initialization, aborting", e);
 }
}

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