第一次启动hive报如下错误:Exception in thread “main” java.lang.RuntimeException: java.net.ConnectException: Call From bdc112/192.168.10.112 to bdc112:8020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
详细报错如下
Exception in thread "main" java.lang.RuntimeException: java.net.ConnectException: Call From bdc112/192.168.10.112 to bdc112:8020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:651) at org.apache.hadoop.hive.ql.session.SessionState.beginStart(SessionState.java:591) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:747) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:683) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.util.RunJar.run(RunJar.java:318) at org.apache.hadoop.util.RunJar.main(RunJar.java:232) Caused by: java.net.ConnectException: Call From bdc112/192.168.10.112 to bdc112:8020 failed on connection exception: java.net.ConnectException: 拒绝连接; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused 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:831) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:755) at org.apache.hadoop.ipc.Client.getRpcResponse(Client.java:1549) at org.apache.hadoop.ipc.Client.call(Client.java:1491) at org.apache.hadoop.ipc.Client.call(Client.java:1388) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:118) at com.sun.proxy.$Proxy28.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:904) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157) at org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359) at com.sun.proxy.$Proxy29.getFileInfo(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1661) at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1577) at org.apache.hadoop.hdfs.DistributedFileSystem$29.doCall(DistributedFileSystem.java:1574) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1589) at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1683) at org.apache.hadoop.hive.ql.exec.Utilities.ensurePathIsWritable(Utilities.java:4486) at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:760) at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:701) at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:627) ... 9 more Caused by: java.net.ConnectException: 拒绝连接 at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:700) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:804) at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:421) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1606) at org.apache.hadoop.ipc.Client.call(Client.java:1435) ... 34 more
报错截图如下:
其实原因很简单,由上图的报错可知(标有红框框),意思不能连接到我们的hadoop集群,检查自己的hadoop集群是否启动成功或启动完整。
启动hadoop后的集群和我这个差不多就可以了,即4-3-3.
[lqs@bdc112 hive]$ bin/hive
再次启动
出现如上图的内容,则启动成功!