jps 5192 Jps 5017 SecondaryNameNode

Question

老师，我输入了jps以后
只有
jps
5192 Jps
5017 SecondaryNameNode
这两个我进程

[hadoop@hadoop000 sbin]$ ./start-dfs.sh
19/07/08 16:48:34 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform… using builtin-java classes where applicable
Starting namenodes on [hadoop000]
hadoop000: ssh: connect to host hadoop000 port 22: No route to host
hadoop000: ssh: connect to host hadoop000 port 22: No route to host
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-secondarynamenode-hadoop000.out
19/07/08 16:48:42 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform… using builtin-java classes where applicable
启动hdfs时候的信息是这样的，我需要怎么去解决这个问题？

Answer 1

Michael_PK 2019-07-08 17:09:40

hadoop home目录下面有个log S的目录，里面有日志。看着情况好像是ssh有点问题，你把ssh重新装下，然后检查下IP和hostname的映射关系是否正确

• 提问者 chipinzhen #1

  老师 ssh应该没有问题，请问是把/etc/hosts 里面hadoop的ip改成ifconfig下的ip吗

• Michael_PK 回复 提问者 chipinzhen #2

  对的，都得一致

• 提问者 chipinzhen 回复 Michael_PK #3

  WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
  Starting namenodes on [hadoop000]
  hadoop000: Warning: Permanently added the RSA host key for IP address '192.168.3.36' to the list of known hosts.
  hadoop000: starting namenode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-namenode-hadoop000.out
  hadoop000: starting datanode, logging to /home/hadoop/app/hadoop-2.6.0-cdh5.7.0/logs/hadoop-hadoop-datanode-hadoop000.out
  Starting secondary namenodes [0.0.0.0]
  0.0.0.0: secondarynamenode running as process 5017. Stop it first.
  19/07/08 21:27:32 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
  [hadoop@hadoop000 sbin]$ jps
  5017 SecondaryNameNode
  7811 NameNode
  8175 Jps
  
  
  老师 我在把etc/hosts下面的 hadoop 的ip改为本机ip后 DataNode好像还是没有启动额

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