org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:218

拼搏现实的明天。 2022-05-27 03:56 265阅读 0赞

在vmware中安装hadoop伪分布式，使用host-only模式使用hbase shell一直正常，后来为了能上网改为了Briged模式。

启动后再命令端看到了关于hbase的异常信息org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)认为是hbase的错误  
一直找不出原因，上网也搜了，有的说是hbase-site.xml的zookeeper的配置，有的说是时钟不一致。唉，又是没好好看日志的原因，原来是hadoop的datanode没启动起来。

datanode失败的原因是旧的namespaceID和namenode格式化的不一致。

总结：好好看日志分析原因，对于新手操作后一定要检查操作达到目的，如可以使用jps检查进程是否启动。

2013-05-13 09:25:17,125 INFO org.apache.zookeeper.server.PrepRequestProcessor: Processed session termination for sessionid: 0x13e9b7d74560002
    2013-05-13 09:25:17,181 INFO org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:34750 which had sessionid 0x13e9b7d74560002
    2013-05-13 09:25:18,193 INFO org.apache.zookeeper.server.NIOServerCnxnFactory: Accepted socket connection from /127.0.0.1:34759
    2013-05-13 09:25:18,194 INFO org.apache.zookeeper.server.ZooKeeperServer: Client attempting to establish new session at /127.0.0.1:34759
    2013-05-13 09:25:18,195 INFO org.apache.zookeeper.server.ZooKeeperServer: Established session 0x13e9b7d74560003 with negotiated timeout 40000 for client /127.0.0.1:34759
    2013-05-13 09:25:22,197 DEBUG org.apache.hadoop.hbase.util.FSUtils: Created version file at hdfs://localhost:9100/hbase set its version at:7
    2013-05-13 09:25:22,199 WARN org.apache.hadoop.hdfs.DFSClient: DataStreamer Exception: org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /hbase/hbase.version could only be replicated to 0 nodes, instead of 1
     at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
     at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAs(Subject.java:396)
     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)
    
     at org.apache.hadoop.ipc.Client.call(Client.java:1070)
     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
     at $Proxy11.addBlock(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
     at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
     at $Proxy11.addBlock(Unknown Source)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829)
    
    2013-05-13 09:25:22,199 WARN org.apache.hadoop.hdfs.DFSClient: Error Recovery for block null bad datanode[0] nodes == null
    2013-05-13 09:25:22,199 WARN org.apache.hadoop.hdfs.DFSClient: Could not get block locations. Source file "/hbase/hbase.version" - Aborting...
    2013-05-13 09:25:22,199 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting shutdown.
    org.apache.hadoop.ipc.RemoteException: java.io.IOException: File /hbase/hbase.version could only be replicated to 0 nodes, instead of 1
     at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:1558)
     at org.apache.hadoop.hdfs.server.namenode.NameNode.addBlock(NameNode.java:696)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAs(Subject.java:396)
     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)
    
     at org.apache.hadoop.ipc.Client.call(Client.java:1070)
     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
     at $Proxy11.addBlock(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
     at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
     at $Proxy11.addBlock(Unknown Source)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.locateFollowingBlock(DFSClient.java:3510)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutputStream(DFSClient.java:3373)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2600(DFSClient.java:2589)
     at org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.run(DFSClient.java:2829)
    2013-05-13 09:25:22,200 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
    2013-05-13 09:25:22,200 DEBUG org.apache.hadoop.hbase.master.HMaster: Stopping service threads
    2013-05-13 09:25:22,200 INFO org.apache.hadoop.ipc.HBaseServer: Stopping server on 50705
    2013-05-13 09:25:22,200 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 0 on 50705: exiting
    2013-05-13 09:25:22,200 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 1 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 2 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 3 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 4 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 5 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 6 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 7 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 8 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server handler 9 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: REPL IPC Server handler 0 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: REPL IPC Server handler 1 on 50705: exiting
    2013-05-13 09:25:22,201 INFO org.apache.hadoop.ipc.HBaseServer: REPL IPC Server handler 2 on 50705: exiting
    2013-05-13 09:25:22,202 INFO org.apache.hadoop.ipc.HBaseServer: Stopping IPC Server listener on 50705
    2013-05-13 09:25:22,204 INFO org.apache.hadoop.ipc.HBaseServer: Stopping IPC Server Responder
    2013-05-13 09:25:22,204 INFO org.apache.hadoop.ipc.HBaseServer: Stopping IPC Server Responder
    2013-05-13 09:25:22,217 INFO org.apache.zookeeper.server.PrepRequestProcessor: Processed session termination for sessionid: 0x13e9b7d74560000
    2013-05-13 09:25:22,222 INFO org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:34745 which had sessionid 0x13e9b7d74560000
    2013-05-13 09:25:22,222 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down
    2013-05-13 09:25:22,222 INFO org.apache.zookeeper.ZooKeeper: Session: 0x13e9b7d74560000 closed
    2013-05-13 09:25:22,222 INFO org.apache.hadoop.hbase.master.HMaster: HMaster main thread exiting
    2013-05-13 09:25:22,224 INFO org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:34747 which had sessionid 0x13e9b7d74560001
    2013-05-13 09:25:22,225 INFO org.apache.zookeeper.ClientCnxn: Unable to read additional data from server sessionid 0x13e9b7d74560001, likely server has closed socket, closing socket connection and attempting reconnect
    2013-05-13 09:25:22,225 INFO org.apache.zookeeper.server.NIOServerCnxn: Closed socket connection for client /127.0.0.1:34759 which had sessionid 0x13e9b7d74560003
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.NIOServerCnxnFactory: NIOServerCnxn factory exited run method
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.ZooKeeperServer: shutting down
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.SessionTrackerImpl: Shutting down
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.PrepRequestProcessor: Shutting down
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.PrepRequestProcessor: PrepRequestProcessor exited loop!
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.SyncRequestProcessor: Shutting down
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.SyncRequestProcessor: SyncRequestProcessor exited!
    2013-05-13 09:25:22,226 INFO org.apache.zookeeper.server.FinalRequestProcessor: shutdown of request processor complete
    2013-05-13 09:25:22,227 INFO org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster: Shutdown MiniZK cluster with all ZK servers
    2013-05-13 09:25:23,012 INFO org.apache.hadoop.hbase.master.SplitLogManager$TimeoutMonitor: fakeDistnode,50705,1368408291524.splitLogManagerTimeoutMonitor exiting
    2013-05-13 09:25:23,855 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:23,855 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:24,001 INFO org.apache.zookeeper.server.SessionTrackerImpl: SessionTrackerImpl exited loop!
    2013-05-13 09:25:25,508 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:25,508 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:27,405 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:27,406 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:28,709 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:28,709 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:30,717 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:30,717 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:32,456 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:32,456 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:34,039 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:34,039 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:35,267 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:35,267 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:36,875 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:36,875 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:38,104 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:38,104 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:39,811 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:39,811 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:41,420 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:41,421 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:42,648 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:42,648 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:44,112 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:44,113 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:45,828 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:45,828 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:47,413 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:47,413 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:48,671 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:48,671 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:50,292 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:50,292 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:51,484 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:51,484 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:52,734 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:52,734 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:54,821 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:54,821 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:56,125 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:56,125 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:57,730 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:57,730 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:25:59,184 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:25:59,184 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:26:00,710 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:26:00,711 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:26:02,694 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:26:02,694 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:26:03,915 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:26:03,915 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:26:05,741 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:26:05,741 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused
     at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
     at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
     at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)
     at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)
    2013-05-13 09:26:07,440 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (Unable to locate a login configuration)
    2013-05-13 09:26:07,440 WARN org.apache.zookeeper.ClientCnxn: Session 0x13e9b7d74560001 for server null, unexpected error, closing socket connection and attempting reconnect
    java.net.ConnectException: Connection refused

本文转载自csdn文章：[org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:218][org.apache.zookeeper.ClientCnxn_ Opening socket connection to server localhost_127.0.0.1_218]

[org.apache.zookeeper.ClientCnxn_ Opening socket connection to server localhost_127.0.0.1_218]: https://blog.csdn.net/lzlchangqi/article/details/8919385