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https://issues.apache.org/jira/browse/HIVE-4625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13668950#comment-13668950
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Thejas M Nair commented on HIVE-4625:
-------------------------------------
Exception like following is thrown with metastore embedded mode -
{code}
ERROR metadata.Hive (Hive.java:getDelegationToken(2415)) -
java.lang.UnsupportedOperationException: getDelegationToken() can be called
only in thrift (non local) mode
at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getDelegationToken(HiveMetaStoreClient.java:1302)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.invoke(RetryingMetaStoreClient.java:74)
at $Proxy8.getDelegationToken(Unknown Source)
at
org.apache.hadoop.hive.ql.metadata.Hive.getDelegationToken(Hive.java:2413)
at
org.apache.hive.service.cli.CLIService.getDelegationTokenFromMetaStore(CLIService.java:319)
at
org.apache.hive.service.cli.thrift.ThriftCLIService.getSessionHandle(ThriftCLIService.java:153)
at
org.apache.hive.service.cli.thrift.ThriftCLIService.OpenSession(ThriftCLIService.java:116)
at
org.apache.hive.service.cli.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1073)
at
org.apache.hive.service.cli.thrift.TCLIService$Processor$OpenSession.getResult(TCLIService.java:1058)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at
org.apache.hadoop.hive.thrift.HadoopThriftAuthBridge20S$Server$TUGIAssumingProcessor.process(HadoopThriftAuthBridge20S.java:569)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:206)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
{code}
> HS2 should not attempt to get delegation token from metastore if using
> embedded metastore
> -----------------------------------------------------------------------------------------
>
> Key: HIVE-4625
> URL: https://issues.apache.org/jira/browse/HIVE-4625
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2
> Affects Versions: 0.11.0
> Reporter: Thejas M Nair
>
> Hive server2 tries to get delegation token from metastore even if the
> metastore is being used in embedded mode.
> To avoid failure in that case, it uses catch block for
> UnsupportedOperationException thrown that does nothing. But this leads to an
> error being logged by lower levels and can mislead users into thinking that
> there is a problem.
> It should check if delegation token mode is supported with current
> configuration before calling the function.
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