Hadoop的jps少了进程

1.主机名与配置文件不一致

启动成功，但是看不到5个进程

• hadoop@node1:~/hadoop$ bin/start-all.sh 
  

• This script is Deprecated. Instead use start-dfs.sh and start-mapred.sh
  

• starting namenode, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-namenode-node1.out
  

• node3: starting datanode, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-node3.out
  

• node2: starting datanode, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-datanode-node2.out
  

• node1: starting secondarynamenode, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-secondarynamenode-node1.out
  

• starting jobtracker, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-jobtracker-node1.out
  

• node3: starting tasktracker, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-node3.out
  

• node2: starting tasktracker, logging to /home/hadoop/hadoop/bin/../logs/hadoop-hadoop-tasktracker-node2.out
  

• hadoop@node1:~/hadoop$ jps
  

• 16993 SecondaryNameNode
  

• 17210 Jps

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• 配置与日志如下：

• hadoop@node1:~/hadoop/conf$ cat core-site.xml 
  

• 
  

• 
  

• 
  

• 
  

• 
  

• hadoop.tmp.dir
  

• /home/hadoop/hadoop/tmp
  

• 
  

• 
  

• 
  

• fs.default.name
  

• hdfs://masternode:54310
  

• 
  

• 
  

• 
  

• hadoop@node1:~/hadoop/conf$ cat hdfs-site.xml 
  

• 
  

• 
  

• 
  

• 
  

• 
  

• dfs.replication
  

• 3
  

• 
  

• 
  

• 
  

• hadoop@node1:~/hadoop/conf$ cat mapred-site.xml 
  

• 
  

• 
  

• 
  

• 
  

• 
  

• mapred.job.tracker
  

• masternode:54311
  

• 
  

• 
  

• 
  

• jobtracker的log文件如下：
  

• 2006-03-11 23:54:44,348 FATAL org.apache.hadoop.mapred.JobTracker: java.net.BindException: Problem binding to masternode/122.72.28.136:54311 : Cannot assign requested address
  

• at org.apache.hadoop.ipc.Server.bind(Server.java:218)
  

• at org.apache.hadoop.ipc.Server$Listener.(Server.java:289)
  

• at org.apache.hadoop.ipc.Server.(Server.java:1443)
  

• at org.apache.hadoop.ipc.RPC$Server.(RPC.java:343)
  

• at org.apache.hadoop.ipc.WritableRpcEngine$Server.(WritableRpcEngine.java:324)
  

• at org.apache.hadoop.ipc.WritableRpcEngine.getServer(WritableRpcEngine.java:284)
  

• at org.apache.hadoop.ipc.WritableRpcEngine.getServer(WritableRpcEngine.java:45)
  

• at org.apache.hadoop.ipc.RPC.getServer(RPC.java:331)
  

• at org.apache.hadoop.mapred.JobTracker.(JobTracker.java:1450)
  

• at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:258)
  

• at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:250)
  

• at org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:245)
  

• at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4164)
  

• Caused by: java.net.BindException: Cannot assign requested address
  

• at sun.nio.ch.Net.bind(Native Method)
  

• at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
  

• at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
  

• at org.apache.hadoop.ipc.Server.bind(Server.java:216)
  

• ... 12 more
  

• 2006-03-11 23:54:44,353 INFO org.apache.hadoop.mapred.JobTracker: SHUTDOWN_MSG: 
  

• /************************************************************
  

• SHUTDOWN_MSG: Shutting down JobTracker at node1/192.168.10.237
  

• ************************************************************/
  

• namenode的log文件如下：
  

• 2006-03-11 23:54:37,009 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: java.net.BindException: Problem binding to masternode/122.72.28.136:54310 : Cannot assign requested address
  

• at org.apache.hadoop.ipc.Server.bind(Server.java:218)
  

• at org.apache.hadoop.ipc.Server$Listener.(Server.java:289)
  

• at org.apache.hadoop.ipc.Server.(Server.java:1443)
  

• at org.apache.hadoop.ipc.RPC$Server.(RPC.java:343)
  

• at org.apache.hadoop.ipc.WritableRpcEngine$Server.(WritableRpcEngine.java:324)
  

• at org.apache.hadoop.ipc.WritableRpcEngine.getServer(WritableRpcEngine.java:284)
  

• at org.apache.hadoop.ipc.WritableRpcEngine.getServer(WritableRpcEngine.java:45)
  

• at org.apache.hadoop.ipc.RPC.getServer(RPC.java:331)
  

• at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:305)
  

• at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:433)
  

• at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:421)
  

• at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1359)
  

• at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368)
  

• Caused by: java.net.BindException: Cannot assign requested address
  

• at sun.nio.ch.Net.bind(Native Method)
  

• at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
  

• at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
  

• at org.apache.hadoop.ipc.Server.bind(Server.java:216)
  

• ... 12 more
  

• 2006-03-11 23:54:37,010 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG: 
  

• /************************************************************
  

• SHUTDOWN_MSG: Shutting down NameNode at node1/192.168.10.237
  

• ************************************************************

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• host如下：

• hadoop@node1:~/hadoop/conf$ cat masters 
  

• node1
  

• hadoop@node1:~/hadoop/conf$ cat slaves 
  

• node2
  

• node3
  

• hadoop@node1:~/hadoop/conf$ cat /etc/hosts
  

• 127.0.0.1       localhost
  

• 192.168.10.237  node1.node1     node1
  

• 192.168.10.238  node2
  

• 192.168.10.239  node3

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• 原因：主机名与配置文件不一致



• 解决办法：



• 1.修改主机名为masternode：具体如何修改查看：ubuntu修改hostname


• 修改后结果如下：

• hadoop@node1:~/hadoop/conf$ cat masters 
  

• masternode

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• ---------------------------------------------------------------------------------------------------------------------------



• 2.主机名错误




• 
  



• 错误如下：



• start-all.sh 没有报错 但是master 和slave都没有启动服务