[jira] [Created] (HIVE-14173) NPE was thrown after enabling directsql in the middle of session

["Chaoyu Tang (JIRA)" <ji...@apache.org>]

Chaoyu Tang created HIVE-14173:
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             Summary: NPE was thrown after enabling directsql in the middle of session
                 Key: HIVE-14173
                 URL: https://issues.apache.org/jira/browse/HIVE-14173
             Project: Hive
          Issue Type: Bug
          Components: Metastore
            Reporter: Chaoyu Tang
            Assignee: Chaoyu Tang


hive.metastore.try.direct.sql is initially set to false in HMS hive-site.xml, then changed to true using set metaconf command in the middle of a session, running a query will be thrown NPE with error message is as following:
{code}
2016-07-06T17:44:41,489 ERROR [pool-5-thread-2]: metastore.RetryingHMSHandler (RetryingHMSHandler.java:invokeInternal(192)) - MetaException(message:java.lang.NullPointerException)
	at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.newMetaException(HiveMetaStore.java:5741)
	at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.rethrowException(HiveMetaStore.java:4771)
	at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions_by_expr(HiveMetaStore.java:4754)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:140)
	at org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:99)
	at com.sun.proxy.$Proxy18.get_partitions_by_expr(Unknown Source)
	at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions_by_expr.getResult(ThriftHiveMetastore.java:12048)
	at org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$get_partitions_by_expr.getResult(ThriftHiveMetastore.java:12032)
	at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
	at org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:110)
	at org.apache.hadoop.hive.metastore.TUGIBasedProcessor$1.run(TUGIBasedProcessor.java:106)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
	at org.apache.hadoop.hive.metastore.TUGIBasedProcessor.process(TUGIBasedProcessor.java:118)
	at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
	at org.apache.hadoop.hive.metastore.ObjectStore$GetHelper.<init>(ObjectStore.java:2667)
	at org.apache.hadoop.hive.metastore.ObjectStore$GetListHelper.<init>(ObjectStore.java:2825)
	at org.apache.hadoop.hive.metastore.ObjectStore$4.<init>(ObjectStore.java:2410)
	at org.apache.hadoop.hive.metastore.ObjectStore.getPartitionsByExprInternal(ObjectStore.java:2410)
	at org.apache.hadoop.hive.metastore.ObjectStore.getPartitionsByExpr(ObjectStore.java:2400)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:101)
	at com.sun.proxy.$Proxy17.getPartitionsByExpr(Unknown Source)
	at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions_by_expr(HiveMetaStore.java:4749)
	... 20 more
{code}



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