由于端口被修改导致的DataNode 重启失败
在配置kerberos认证失败后,打算恢复原始的状态,
DataNode 重启失败, 经过排查发现错误日志如下,判断有可能是端口拒绝访问导致的,查看hdfs的 端口配置发现有两处变动的地方,使用恢复按钮进行恢复,之后重启即可.(此处是CM默认的配置,和HDFS原始的端口号不完全一致)
Exception in secureMain java.net.SocketException: Call From hzd-t-vbdl-02 to null:0 failed on socket exception: java.net.SocketException: Permission denied; For more details see: http://wiki.apache.org/hadoop/SocketException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:824) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:797) at org.apache.hadoop.ipc.Server.bind(Server.java:562) at org.apache.hadoop.ipc.Server.bind(Server.java:534) at org.apache.hadoop.hdfs.net.TcpPeerServer.<init>(TcpPeerServer.java:52) at org.apache.hadoop.hdfs.server.datanode.DataNode.initDataXceiver(DataNode.java:1138) at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1414) at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:500) at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2804) at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2707) at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2754) at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2898) at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2922) Caused by: java.net.SocketException: Permission denied at sun.nio.ch.Net.bind0(Native Method) at sun.nio.ch.Net.bind(Net.java:433) at sun.nio.ch.Net.bind(Net.java:425) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) at org.apache.hadoop.ipc.Server.bind(Server.java:545) ... 10 more |