Got a fatal error, exiting now java.net.UnknownHostException异常

Question

问题描述

格式化Zookeeper的时候提示如下错误信息：
FATAL org.apache.hadoop.hdfs.tools.DFSZKFailoverController: Got a fatal error, exiting now
java.net.UnknownHostException: tuge3:2181:tuge4: Temporary failure in name resolution

    at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
    at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:929)
    at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1324)
    at java.net.InetAddress.getAllByName0(InetAddress.java:1277)
    at java.net.InetAddress.getAllByName(InetAddress.java:1193)
    at java.net.InetAddress.getAllByName(InetAddress.java:1127)
    at org.apache.zookeeper.client.StaticHostProvider.<init>(StaticHostProvider.java:61)
    at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:445)
    at org.apache.zookeeper.ZooKeeper.<init>(ZooKeeper.java:380)
    at org.apache.hadoop.ha.ActiveStandbyElector.getNewZooKeeper(ActiveStandbyElector.java:628)
    at org.apache.hadoop.ha.ActiveStandbyElector.createConnection(ActiveStandbyElector.java:767)
    at org.apache.hadoop.ha.ActiveStandbyElector.<init>(ActiveStandbyElector.java:227)
    at org.apache.hadoop.ha.ZKFailoverController.initZK(ZKFailoverController.java:350)
    at org.apache.hadoop.ha.ZKFailoverController.doRun(ZKFailoverController.java:191)
    at org.apache.hadoop.ha.ZKFailoverController.access$000(ZKFailoverController.java:61)
    at org.apache.hadoop.ha.ZKFailoverController$1.run(ZKFailoverController.java:172)
    at org.apache.hadoop.ha.ZKFailoverController$1.run(ZKFailoverController.java:168)
    at org.apache.hadoop.security.SecurityUtil.doAsLoginUserOrFatal(SecurityUtil.java:412)
    at org.apache.hadoop.ha.ZKFailoverController.run(ZKFailoverController.java:168)
    at org.apache.hadoop.hdfs.tools.DFSZKFailoverController.main(DFSZKFailoverController.java:181)

有人遇到过么，谢谢