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https://issues.apache.org/jira/browse/HIVE-24776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harshit Gupta reassigned HIVE-24776:
------------------------------------
Assignee: Harshit Gupta
> Reduce HMS DB calls during stats updates
> ----------------------------------------
>
> Key: HIVE-24776
> URL: https://issues.apache.org/jira/browse/HIVE-24776
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Assignee: Harshit Gupta
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> When adding large number of partitions (100s/1000s) in a table, it ends up
> making lots of getTable calls which are not needed.
> Lines mentioned below may vary slightly in apache-master.
> {noformat}
> at
> org.datanucleus.api.jdo.JDOPersistenceManager.jdoRetrieve(JDOPersistenceManager.java:620)
> at
> org.datanucleus.api.jdo.JDOPersistenceManager.retrieve(JDOPersistenceManager.java:637)
> at
> org.datanucleus.api.jdo.JDOPersistenceManager.retrieve(JDOPersistenceManager.java:646)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:2112)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:2150)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.ensureGetMTable(ObjectStore.java:4578)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.ensureGetTable(ObjectStore.java:4588)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.updatePartitionColumnStatistics(ObjectStore.java:9264)
> at sun.reflect.GeneratedMethodAccessor92.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:97)
> at com.sun.proxy.$Proxy27.updatePartitionColumnStatistics(Unknown
> Source)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.updatePartitonColStatsInternal(HiveMetaStore.java:6679)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.updatePartColumnStatsWithMerge(HiveMetaStore.java:8655)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.set_aggr_stats_for(HiveMetaStore.java:8592)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:108)
> at com.sun.proxy.$Proxy28.set_aggr_stats_for(Unknown Source)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$set_aggr_stats_for.getResult(ThriftHiveMetastore.java:19060)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$set_aggr_stats_for.getResult(ThriftHiveMetastore.java:19044)
> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
> {noformat}
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