Hadoop啟動namenode失敗,埠號衝突問題解決
阿新 • • 發佈:2019-02-12
部署完Hadoop集群后,啟動hadoop叢集,有可能會遇到埠號衝突的問題
ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode. java.net.BindException: Problem binding to [logsrv03:9000] java.net.BindException: 地址已在使用; For more details see: http://wiki.apache.org/hadoop/BindException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:721) at org.apache.hadoop.ipc.Server.bind(Server.java:425) at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:574) at org.apache.hadoop.ipc.Server.<init>(Server.java:2215) at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:938) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.<init>(ProtobufRpcEngine.java:534) at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:509) at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:783) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.<init>(NameNodeRpcServer.java:344) at org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcServer(NameNode.java:673) at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:646) at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:811) at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:795) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1488) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554) Caused by: java.net.BindException: 地址已在使用 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.apache.hadoop.ipc.Server.bind(Server.java:408) ... 13 more
出現原因:啟動hdfs的時候埠號9000被另外一個程式佔用了,出現埠衝突
解決辦法:
1、查詢這個埠號佔用的程式,然後kill掉,重新啟動hadoop
netstat -nltp | grep 埠號
2、在hadoop中配置core-site.xml,改變配置的埠號,重新啟動