hadoop2.8.5 搭建QJM的HA集群，NameNode迁移不完全生效

[金山老师]

使用hadoop2.8.5 jdk1.8 机器Centos7搭建QJM的 HA集群第一个Namenode关闭，能切换到第二个Namenode，但是NN2关闭，NN1还是standby状态。 求助各位是什么原因？？？？

【zoo.cfg】

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/home/zookeeper_data
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

server.1=node1:2888:3888
server.2=node2:2888:3888
server.3=node3:2888:3888

配置文件如下;

【hosts】

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.81.211	node1
192.168.81.212	node2
192.168.81.213	node3
192.168.81.214	node4
192.168.81.215	node5
192.168.81.216	node6

【hadoop-env.sh】

export JAVA_HOME=/home/weblogic/jdk1.8.0_181

【core-site.xml】

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://sxt</value>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>/home/hadoop_tmp</value>
    </property>
	
	 <property>
	   <name>ha.zookeeper.quorum</name>
	   <value>node1:2181,node2:2181,node3:2181</value>
	 </property>
</configuration>

hdfs-site.xml

<configuration>
	<property>
	  <name>dfs.nameservices</name>
	  <value>sxt</value>
	</property>
		
	<property>
	  <name>dfs.ha.namenodes.sxt</name>
	  <value>nn1,nn2</value>
	</property>
	
	<property>
	  <name>dfs.namenode.rpc-address.sxt.nn1</name>
	  <value>node1:8020</value>
	</property>
	<property>
	  <name>dfs.namenode.rpc-address.sxt.nn2</name>
	  <value>node2:8020</value>
	</property>
	<property>
	  <name>dfs.namenode.http-address.sxt.nn1</name>
	  <value>node1:50070</value>
	</property>
	<property>
	  <name>dfs.namenode.http-address.sxt.nn2</name>
	  <value>node2:50070</value>
	</property>
	
	<!-- journalNode集群-->
	<property>
	  <name>dfs.namenode.shared.edits.dir</name>
	  <value>qjournal://node2:8485;node3:8485;node4:8485/sxt</value>
	</property>
	
	<!--代理类，故障迁移 -->
	<property>
	  <name>dfs.client.failover.proxy.provider.sxt</name>
	  <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
	</property>
	
	
	
	<property>
      <name>dfs.ha.fencing.methods</name>
      <value>sshfence</value>
    </property>

    <property>
      <name>dfs.ha.fencing.ssh.private-key-files</name>
      <value>/root/.ssh/id_rsa</value>
    </property>
	
	<property>
	  <name>fs.defaultFS</name>
	  <value>hdfs://sxt</value>
	</property>

	<property>
	  <name>dfs.journalnode.edits.dir</name>
	  <value>/opt/journal/data</value>
	</property>


	 <property>
	   <name>dfs.ha.automatic-failover.enabled</name>
	   <value>true</value>
	 </property>
		
	

</configuration>

【slaves】

node2
node3
node4