hadoop 格式化zk报错

[zhlg_1003]

用hdfs zkfc –formatZK 命令格式化 zk报错了
9/08 20:55:59 INFO zookeeper.ZooKeeper: Client environment:os.version=2.6.32-431.el6.x86_64
16/09/08 20:55:59 INFO zookeeper.ZooKeeper: Client environment:user.name=hadoop
16/09/08 20:55:59 INFO zookeeper.ZooKeeper: Client environment:user.home=/home/hadoop
16/09/08 20:55:59 INFO zookeeper.ZooKeeper: Client environment:user.dir=/home/hadoop/datas/hdfs
16/09/08 20:55:59 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=>hddata1:2181,hddata2:2181,hddata3:2181 sessionTimeout=5000 watcher=org.apache.hadoop.ha.ActiveStandbyElector$WatcherWithClientRef@49ec9f34
16/09/08 20:55:59 FATAL tools.DFSZKFailoverController: Got a fatal error, exiting now
java.net.UnknownHostException: >hddata1
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:901)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1295)
at java.net.InetAddress.getAllByName0(InetAddress.java:1248)
at java.net.InetAddress.getAllByName(InetAddress.java:1164)
at java.net.InetAddress.getAllByName(InetAddress.java:1098)
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:631)
at org.apache.hadoop.ha.ActiveStandbyElector.createConnection(ActiveStandbyElector.java:775)
at org.apache.hadoop.ha.ActiveStandbyElector.<init>(ActiveStandbyElector.java:229)
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:415)
at org.apache.hadoop.ha.ZKFailoverController.run(ZKFailoverController.java:168)
at org.apache.hadoop.hdfs.tools.DFSZKFailoverController.main(DFSZKFailoverController.java:181)

[hijack00]

java.net.UnknownHostException: >hddata1 无法解析主机名。将对应的主机名与IP地址的映射写到/etc/hosts文件中。 要确保集群中每台主机上的hosts文件中都有这些主机名的映射，因为他们可能会需要互联。