https://community.cloudera.com/t5/Support-Questions/Hive-JDBC-Connection-string-with-KNOX-and-Kerberos/m-p/173201#M135477 <P><A rel="user" href="https://community.cloudera.com/users/292/skothari.html" nodeid="292">@skothari</A> </P><P>Getting the below:</P><P>16/09/28 18:23:43 [main]: ERROR jdbc.HiveConnection: Error opening session</P><P>org.apache.thrift.transport.TTransportException: HTTP Response code: 401</P><P>at org.apache.thrift.transport.THttpClient.flushUsingHttpClient(THttpClient.java:262)</P><P>at org.apache.thrift.transport.THttpClient.flush(THttpClient.java:313)</P><P>at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:73)</P><P>at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:62)</P><P>at org.apache.hive.service.cli.thrift.TCLIService$Client.send_OpenSession(TCLIService.java:154)</P><P>at org.apache.hive.service.cli.thrift.TCLIService$Client.OpenSession(TCLIService.java:146)</P><P>at org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:552)</P><P>at org.apache.hive.jdbc.HiveConnection.&lt;init&gt;(HiveConnection.java:170)</P><P>at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:105)</P><P>at java.sql.DriverManager.getConnection(DriverManager.java:571)</P><P>at java.sql.DriverManager.getConnection(DriverManager.java:187)</P><P>at org.apache.hive.beeline.DatabaseConnection.connect(DatabaseConnection.java:146)</P><P>at org.apache.hive.beeline.DatabaseConnection.getConnection(DatabaseConnection.java:211)</P><P>at org.apache.hive.beeline.Commands.connect(Commands.java:1190)</P><P>at org.apache.hive.beeline.Commands.connect(Commands.java:1086)</P><P>at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</P><P>at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</P><P>at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</P><P>at java.lang.reflect.Method.invoke(Method.java:606)</P><P>at org.apache.hive.beeline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:52)</P><P>at org.apache.hive.beeline.BeeLine.dispatch(BeeLine.java:989)</P><P>at org.apache.hive.beeline.BeeLine.execute(BeeLine.java:832)</P><P>at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:790)</P><P>at org.apache.hive.beeline.BeeLine.mainWithInputRedirection(BeeLine.java:490)</P><P>at org.apache.hive.beeline.BeeLine.main(BeeLine.java:473)</P><P>at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</P><P>at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)</P><P>at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)</P><P>at java.lang.reflect.Method.invoke(Method.java:606)</P><P>at org.apache.hadoop.util.RunJar.run(RunJar.java:233)</P><P>at org.apache.hadoop.util.RunJar.main(RunJar.java:148) HTTP Response code: 401 (state=08S01,code=0)</P> Thu, 29 Sep 2016 01:24:42 GMT mliem 2016-09-29T01:24:42Z