Zookeeper连接重试设置

remington_young

　　开发HBase应用的时候需要设置连接超时时间，可以通过zookeeper.recovery.retry和zookeeper.recovery.retry.intervalmill设置
　　
　　在ZKUtil.java中：
　　public static RecoverableZooKeeper connect(Configuration conf, String ensemble,
      Watcher watcher, final String identifier)
  throws IOException {
    if(ensemble == null) {
      throw new IOException("Unable to determine ZooKeeper ensemble");
    }
    int timeout = conf.getInt(HConstants.ZK_SESSION_TIMEOUT,
        HConstants.DEFAULT_ZK_SESSION_TIMEOUT);
    if (LOG.isTraceEnabled()) {
      LOG.trace(identifier + " opening connection to ZooKeeper ensemble=" + ensemble);
    }
    int retry = conf.getInt("zookeeper.recovery.retry", 3);//zookeeper连接重试次数
    int retryIntervalMillis =
      conf.getInt("zookeeper.recovery.retry.intervalmill", 1000);//zookeeper连接重试间隔
    zkDumpConnectionTimeOut = conf.getInt("zookeeper.dump.connection.timeout",
        1000);
    return new RecoverableZooKeeper(ensemble, timeout, watcher,
        retry, retryIntervalMillis, identifier);
  }