Nachiket Vaidya created HIVE-13836:
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Summary: DbNotifications giving an error = Invalid state.
Transaction has already started
Key: HIVE-13836
URL: https://issues.apache.org/jira/browse/HIVE-13836
Project: Hive
Issue Type: Bug
Reporter: Nachiket Vaidya
Priority: Critical
I used pyhs2 python client to create tables/partitions in hive. I was working
fine until I moved to multithreaded scripts which created 8 connections and ran
DDL queries concurrently.
I got the error as
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2016-05-04 17:49:26,226 ERROR
org.apache.hadoop.hive.metastore.RetryingHMSHandler: [pool-4-thread-194]:
HMSHandler Fatal error: Invalid state. Transaction has already started
org.datanucleus.transaction.NucleusTransactionException: Invalid state.
Transaction has already started
at
org.datanucleus.transaction.TransactionManager.begin(TransactionManager.java:47)
at org.datanucleus.TransactionImpl.begin(TransactionImpl.java:131)
at
org.datanucleus.api.jdo.JDOTransaction.internalBegin(JDOTransaction.java:88)
at org.datanucleus.api.jdo.JDOTransaction.begin(JDOTransaction.java:80)
at
org.apache.hadoop.hive.metastore.ObjectStore.openTransaction(ObjectStore.java:463)
at
org.apache.hadoop.hive.metastore.ObjectStore.addNotificationEvent(ObjectStore.java:7522)
at sun.reflect.GeneratedMethodAccessor20.invoke(Unknown Source)
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:114)
at com.sun.proxy.$Proxy10.addNotificationEvent(Unknown Source)
at
org.apache.hive.hcatalog.listener.DbNotificationListener.enqueue(DbNotificationListener.java:261)
at
org.apache.hive.hcatalog.listener.DbNotificationListener.onCreateTable(DbNotificationListener.java:123)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_core(HiveMetaStore.java:1483)
at
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.create_table_with_environment_context(HiveMetaStore.java:1502)
at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:138)
at
org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:99)
at com.sun.proxy.$Proxy14.create_table_with_environment_context(Unknown
Source)
at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$create_table_with_environment_context.getResult(ThriftHiveMetastore.java:9267)
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