Thanks for the reply. Below are the results of each one you asked to execute. 1) [root@server1 hdfs]# ps aux | grep -i namenode
root 27093 0.0 0.0 103308 900 pts/0 S+ 19:40 0:00 grep -i namenode
2) [root@server1 hdfs]# nano hadoop-hdfs-namenode-server1.ddns.net.log 2016-06-03 14:03:11,218 INFO impl.MetricsSystemImpl (MetricsSystemImpl.java:stop(211)) - Stopping NameNode metrics system...
2016-06-03 14:03:11,219 INFO impl.MetricsSinkAdapter (MetricsSinkAdapter.java:publishMetricsFromQueue(141)) - timeline thre$
2016-06-03 14:03:11,219 INFO impl.MetricsSystemImpl (MetricsSystemImpl.java:stop(217)) - NameNode metrics system stopped.
2016-06-03 14:03:11,219 INFO impl.MetricsSystemImpl (MetricsSystemImpl.java:shutdown(607)) - NameNode metrics system shutdo$
2016-06-03 14:03:11,220 ERROR namenode.NameNode (NameNode.java:main(1712)) - Failed to start namenode.
java.net.BindException: Port in use: server1.ddns.net:50070
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:919)
at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:856)
at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:142)
at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:892)
at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:716)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:951)
at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:935)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1641)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1707)
Caused by: java.net.BindException: Address already in use
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:444)
at sun.nio.ch.Net.bind(Net.java:436)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
at org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:914)
... 8 more
2016-06-03 14:03:11,223 INFO util.ExitUtil (ExitUtil.java:terminate(124)) - Exiting with status 1
2016-06-03 14:03:11,260 INFO namenode.NameNode (LogAdapter.java:info(47)) - SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at server1.ddns.net/141.178.0.16 In my core-site.xml, below is the entry <property>
<name>fs.defaultFS</name>
<value>hdfs://server1.ddns.net:8020</value>
</property>
In my hdfs-site.xml, below are the entry <property>
<name>dfs.https.port</name>
<value>50470</value>
</property>
<property>
<name>dfs.namenode.http-address</name>
<value>server1.ddns.net:50070</value>
</property>
<property>
<name>dfs.namenode.https-address</name>
<value>server1.ddns.net:50470</value>
</property>
<property>
<name>dfs.namenode.rpc-address</name>
<value>server1.ddns.net:8020</value>
</property>
<property>
<name>dfs.namenode.safemode.threshold-pct</name>
<value>1</value>
</property>
... View more
