报错信息如下

Logging initialized using configuration in jar:file:/home/hadoop/app/hive-1.1.0-cdh5.7.0/lib/hive-common-1.1.0-cdh5.7.0.jar!/hive-log4j.properties

Exception in thread "main" java.lang.RuntimeException: java.net.ConnectException: Call From hadoop001/192.168.0.108 to hadoop001:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused

        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:539)

        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:687)

        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:626)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:606)

        at org.apache.hadoop.util.RunJar.run(RunJar.java:221)

        at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

Caused by: java.net.ConnectException: Call From hadoop001/192.168.0.108 to hadoop001:8020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused

        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:791)

        at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:731)

        at org.apache.hadoop.ipc.Client.call(Client.java:1475)

        at org.apache.hadoop.ipc.Client.call(Client.java:1408)

        at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)

        at com.sun.proxy.$Proxy19.getFileInfo(Unknown Source)

        at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:757)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:606)

        at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:256)

        at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)

        at com.sun.proxy.$Proxy20.getFileInfo(Unknown Source)

        at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2102)

        at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1215)

        at org.apache.hadoop.hdfs.DistributedFileSystem$19.doCall(DistributedFileSystem.java:1211)

        at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)

        at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1211)

        at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1412)

        at org.apache.hadoop.hive.ql.session.SessionState.createRootHDFSDir(SessionState.java:615)

        at org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:573)

        at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:517)

        ... 8 more

Caused by: java.net.ConnectException: Connection refused

        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

        at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)

        at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)

        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530)

        at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494)

        at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:614)

        at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:713)

        at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:375)

        at org.apache.hadoop.ipc.Client.getConnection(Client.java:1524)

        at org.apache.hadoop.ipc.Client.call(Client.java:1447)

        ... 28 more

怎么解决啊