Xuefu Zhang created HIVE-5492:
---------------------------------
Summary: Explain query fails with NPE if a client doesn't call
getResultSetSchema()
Key: HIVE-5492
URL: https://issues.apache.org/jira/browse/HIVE-5492
Project: Hive
Issue Type: Bug
Components: Thrift API
Affects Versions: 0.11.0
Reporter: Xuefu Zhang
Assignee: Xuefu Zhang
Fix For: 0.13.0
If a thrift client makes an explain query and fetches results without calling
getResultSetSchema() first, NullPointerException will occur in Hive.
{code}
org.apache.hive.service.cli.HiveSQLException: java.lang.NullPointerException
at
org.apache.hive.service.cli.operation.SQLOperation.getNextRowSet(SQLOperation.java:262)
at
org.apache.hive.service.cli.operation.OperationManager.getOperationNextRowSet(OperationManager.java:179)
at
org.apache.hive.service.cli.session.HiveSessionImpl.fetchResults(HiveSessionImpl.java:422)
at
org.apache.hive.service.cli.CLIService.fetchResults(CLIService.java:333)
at
org.apache.hive.service.cli.thrift.ThriftCLIService.FetchResults(ThriftCLIService.java:413)
at
org.apache.hive.service.cli.thrift.TCLIService$Processor$FetchResults.getResult(TCLIService.java:1613)
at
org.apache.hive.service.cli.thrift.TCLIService$Processor$FetchResults.getResult(TCLIService.java:1598)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at
org.apache.hive.service.auth.TUGIContainingProcessor$1.run(TUGIContainingProcessor.java:40)
at
org.apache.hive.service.auth.TUGIContainingProcessor$1.run(TUGIContainingProcessor.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1477)
at
org.apache.hadoop.hive.shims.HadoopShimsSecure.doAs(HadoopShimsSecure.java:527)
at
org.apache.hive.service.auth.TUGIContainingProcessor.process(TUGIContainingProcessor.java:37)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:244)
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:724)
Caused by: java.lang.NullPointerException
at org.apache.hive.service.cli.Row.<init>(Row.java:45)
at org.apache.hive.service.cli.RowSet.addRow(RowSet.java:61)
at
org.apache.hive.service.cli.operation.SQLOperation.getNextRowSet(SQLOperation.java:254)
... 19 more
{code}
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