HIVE error. -- H060 Unable to open Hive session

[#1]

I had to restart my AWS server which caused it's public dns changed . so for opening the ambari-server I had to connect to new dns:8080 port, and I was able to connect easily. But when I am connecting to the hive view it is giving below error.

H060 Unable to open Hive session: org.apache.thrift.protocol.TProtocolException:Required field 'serverProtocolVersion'is unset!Struct:TOpenSessionResp(status:TStatus(statusCode:ERROR_STATUS, infoMessages:[*org.apache.

[#2]

I can't able to open hive session. I get the following error when i tried to open hive session.

Restarted hive and ambari-server but no luck. please help me

hive Logging initialized using configuration in file:/etc/hive/2.5.0.0-1245/0/hive-log4j.properties Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgumentException: java.net.UnknownHostException: sandbox at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:523) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:680) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:624) 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:233) at org.apache.hadoop.util.RunJar.main(RunJar.java:148) Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: sandbox at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:411) at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:311) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:688) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:629) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:159) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2761) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:99) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2795) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2777) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:386) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:179) at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:506) ... 8 more Caused by: java.net.UnknownHostException: sandbox ... 21 more

Thanks