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https://issues.apache.org/jira/browse/HIVE-25073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harshit Gupta reassigned HIVE-25073:
------------------------------------
Assignee: Harshit Gupta
> Optimise HiveAlterHandler::alterPartitions
> ------------------------------------------
>
> Key: HIVE-25073
> URL: https://issues.apache.org/jira/browse/HIVE-25073
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Reporter: Rajesh Balamohan
> Assignee: Harshit Gupta
> Priority: Major
>
> Table details are populated again and again for each partition, which can be
> avoided.
> https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HMSHandler.java#L5892
> https://github.com/apache/hive/blob/master/standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HiveAlterHandler.java#L808
> Following stacktrace may be relevant for apache master as well.
> {noformat}
> at org.datanucleus.store.query.Query.executeWithArray(Query.java:1744)
> at org.datanucleus.api.jdo.JDOQuery.executeInternal(JDOQuery.java:368)
> at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:255)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:2113)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.getMTable(ObjectStore.java:2152)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.alterPartitionNoTxn(ObjectStore.java:4951)
> at
> org.apache.hadoop.hive.metastore.ObjectStore.alterPartitions(ObjectStore.java:5057)
> at sun.reflect.GeneratedMethodAccessor68.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.$Proxy27.alterPartitions(Unknown Source)
> at
> org.apache.hadoop.hive.metastore.HiveAlterHandler.alterPartitions(HiveAlterHandler.java:798)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.alter_partitions_with_environment_context(HiveMetaStore.java:5695)
> at
> org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.alter_partitions_req(HiveMetaStore.java:5647)
> at sun.reflect.GeneratedMethodAccessor67.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invokeInternal(RetryingHMSHandler.java:147)
> at
> org.apache.hadoop.hive.metastore.RetryingHMSHandler.invoke(RetryingHMSHandler.java:108)
> at com.sun.proxy.$Proxy28.alter_partitions_req(Unknown Source)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$alter_partitions_req.getResult(ThriftHiveMetastore.java:18557)
> at
> org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Processor$alter_partitions_req.getResult(ThriftHiveMetastore.java:18541)
> at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
> at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
> at
> org.apache.hadoop.hive.metastore.security.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:643)
> at
> org.apache.hadoop.hive.metastore.security.HadoopThriftAuthBridge$Server$TUGIAssumingProcessor$1.run(HadoopThriftAuthBridge.java:638)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> {noformat}
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