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org.apache.thrift.protocol.TProtocolException: Cannot write a TUnion with no set value!	at org.apache.thrift.TUnion$TUnionStandardScheme.write(TUnion.java:240)	at org.apache.thrift.TUnion$TUnionStandardScheme.write(TUnion.java:213)	at org.apache.thrift.TUnion.write(TUnion.java:152)	at org.apache.hive.service.cli.thrift.TGetInfoResp$TGetInfoRespStandardScheme.write(TGetInfoResp.java:456)	at org.apache.hive.service.cli.thrift.TGetInfoResp$TGetInfoRespStandardScheme.write(TGetInfoResp.java:406)	at org.apache.hive.service.cli.thrift.TGetInfoResp.write(TGetInfoResp.java:341)	at org.apache.hive.service.cli.thrift.TCLIService$GetInfo_result$GetInfo_resultStandardScheme.write(TCLIService.java:3754)	at org.apache.hive.service.cli.thrift.TCLIService$GetInfo_result$GetInfo_resultStandardScheme.write(TCLIService.java:3718)	at org.apache.hive.service.cli.thrift.TCLIService$GetInfo_result.write(TCLIService.java:3669)	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:53)	at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)	at org.apache.hive.service.auth.TSetIpAddressProcessor.process(TSetIpAddressProcessor.java:55)	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:744)