本文整理了Java中org.jumbune.remoting.common.ZKUtils.getActiveNameNode()
方法的一些代码示例,展示了ZKUtils.getActiveNameNode()
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。ZKUtils.getActiveNameNode()
方法的具体详情如下:
包路径:org.jumbune.remoting.common.ZKUtils
类名称:ZKUtils
方法名:getActiveNameNode
[英]Gets the active namenode name.
[中]获取活动名称节点名称。
代码示例来源:origin: Impetus/jumbune
/**
* Gets the leader name node from zookeeper.
* @param zkHosts
*
* @return the leader name node from zookeeper
*/
public static byte[] getLeaderNameNodeFromZK(String[] zkHosts) {
final int retryTimes = 10;
byte[] nameHostName = null;
int retryCount = 1;
do {
List<String> nameNodeNameList = getNodeChildrenList(zkHosts, ZKConstants.HADOOP_NODE_PATH);
for (String nameNodeName : nameNodeNameList) {
nameHostName = getActiveNameNode(zkHosts,
ZKConstants.HADOOP_NODE_PATH + File.separator + nameNodeName + ZKConstants.ACTIVE_BREAD_CRUMB);
}
if (nameHostName == null) {
try {
LOGGER.warn("found active NN null from ZK, retrying after " + 100 * retryCount + " millisecs");
Thread.sleep(100 * retryCount);
} catch (InterruptedException e) {
}
}
retryCount++;
} while (nameHostName == null && retryCount <= retryTimes);
return nameHostName;
}
代码示例来源:origin: Impetus/jumbune
/**
* Gets the leader name node from zookeeper.
* @param zkHosts
*
* @return the leader name node from zookeeper
*/
public static byte[] getLeaderNameNodeFromZK(String[] zkHosts) {
final int retryTimes = 10;
byte[] nameHostName = null;
int retryCount = 1;
do {
List<String> nameNodeNameList = getNodeChildrenList(zkHosts, ZKConstants.HADOOP_NODE_PATH);
for (String nameNodeName : nameNodeNameList) {
nameHostName = getActiveNameNode(zkHosts,
ZKConstants.HADOOP_NODE_PATH + File.separator + nameNodeName + ZKConstants.ACTIVE_BREAD_CRUMB);
}
if (nameHostName == null) {
try {
LOGGER.warn("found active NN null from ZK, retrying after " + 100 * retryCount + " millisecs");
Thread.sleep(100 * retryCount);
} catch (InterruptedException e) {
}
}
retryCount++;
} while (nameHostName == null && retryCount <= retryTimes);
return nameHostName;
}
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