org.apache.hadoop.hive.metastore

Class HMSMetricsListener

java.lang.Object

org.apache.hadoop.hive.metastore.MetaStoreEventListener

org.apache.hadoop.hive.metastore.HMSMetricsListener

All Implemented Interfaces:

org.apache.hadoop.conf.Configurable

public class HMSMetricsListener
extends MetaStoreEventListener

Report metrics of metadata added, deleted by this Hive Metastore. The listener is only attached when the metrics are enabled.

Constructor Summary

Constructors

Constructor and Description
HMSMetricsListener(org.apache.hadoop.conf.Configuration config)

Method Summary

Modifier and Type	Method and Description
void	onAddPartition(AddPartitionEvent partitionEvent)
void	onAllocWriteId(AllocWriteIdEvent allocWriteIdEvent, Connection dbConn, SQLGenerator sqlGenerator) This will be called to alloc a new write id.
void	onCreateDatabase(CreateDatabaseEvent dbEvent)
void	onCreateTable(CreateTableEvent tableEvent)
void	onDropDatabase(DropDatabaseEvent dbEvent)
void	onDropPartition(DropPartitionEvent partitionEvent)
void	onDropTable(DropTableEvent tableEvent)

Methods inherited from class org.apache.hadoop.hive.metastore.MetaStoreEventListener

doesAddEventsToNotificationLogTable, getConf, onAbortTxn, onAcidWrite, onAddCheckConstraint, onAddDefaultConstraint, onAddForeignKey, onAddNotNullConstraint, onAddPrimaryKey, onAddSchemaVersion, onAddUniqueConstraint, onAlterCatalog, onAlterDatabase, onAlterDataConnector, onAlterISchema, onAlterPartition, onAlterSchemaVersion, onAlterTable, onBatchAcidWrite, onCommitCompaction, onCommitTxn, onConfigChange, onCreateCatalog, onCreateDataConnector, onCreateFunction, onCreateISchema, onDeletePartitionColumnStat, onDeleteTableColumnStat, onDropCatalog, onDropConstraint, onDropDataConnector, onDropFunction, onDropISchema, onDropSchemaVersion, onInsert, onLoadPartitionDone, onOpenTxn, onReload, onUpdatePartitionColumnStat, onUpdatePartitionColumnStatInBatch, onUpdateTableColumnStat, setConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HMSMetricsListener

public HMSMetricsListener(org.apache.hadoop.conf.Configuration config)

Method Detail

onCreateDatabase

public void onCreateDatabase(CreateDatabaseEvent dbEvent)
                      throws MetaException

Overrides:

onCreateDatabase in class MetaStoreEventListener

Parameters:

dbEvent - database event

Throws:

MetaException

onDropDatabase

public void onDropDatabase(DropDatabaseEvent dbEvent)
                    throws MetaException

Overrides:

onDropDatabase in class MetaStoreEventListener

Parameters:

dbEvent - database event

Throws:

MetaException

onCreateTable

public void onCreateTable(CreateTableEvent tableEvent)
                   throws MetaException

Overrides:

onCreateTable in class MetaStoreEventListener

Parameters:

tableEvent - table event.

Throws:

MetaException

onDropTable

public void onDropTable(DropTableEvent tableEvent)
                 throws MetaException

Overrides:

onDropTable in class MetaStoreEventListener

Parameters:

tableEvent - table event.

Throws:

MetaException

onDropPartition

public void onDropPartition(DropPartitionEvent partitionEvent)
                     throws MetaException

Overrides:

onDropPartition in class MetaStoreEventListener

Parameters:

partitionEvent - partition event

Throws:

MetaException

onAddPartition

public void onAddPartition(AddPartitionEvent partitionEvent)
                    throws MetaException

Overrides:

onAddPartition in class MetaStoreEventListener

Parameters:

partitionEvent - add partition event

Throws:

MetaException

onAllocWriteId

public void onAllocWriteId(AllocWriteIdEvent allocWriteIdEvent,
                           Connection dbConn,
                           SQLGenerator sqlGenerator)
                    throws MetaException

Description copied from class: MetaStoreEventListener

This will be called to alloc a new write id.

Overrides:

onAllocWriteId in class MetaStoreEventListener

Parameters:

allocWriteIdEvent - event to be processed

dbConn - jdbc connection to remote meta store db.

sqlGenerator - helper class to generate db specific sql string.

Throws:

MetaException