org.apache.hadoop.hive.metastore.txn.service

Class AcidHouseKeeperService

java.lang.Object

org.apache.hadoop.hive.metastore.txn.service.AcidHouseKeeperService

All Implemented Interfaces:

Runnable, org.apache.hadoop.conf.Configurable, MetastoreTaskThread

Direct Known Subclasses:

CompactionHouseKeeperService

public class AcidHouseKeeperService
extends Object
implements MetastoreTaskThread

Performs background tasks for Transaction management in Hive. Runs inside Hive Metastore Service.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	serviceName
protected Map<org.apache.commons.lang3.function.FailableRunnable<MetaException>,String>	tasks
protected TxnStore	txnHandler

Constructor Summary

Constructors

Constructor and Description
AcidHouseKeeperService()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.conf.Configuration	getConf()
protected void	initTasks()
void	run()
long	runFrequency(TimeUnit unit)
void	setConf(org.apache.hadoop.conf.Configuration configuration)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.metastore.MetastoreTaskThread

initialDelay

Field Detail

txnHandler

protected TxnStore txnHandler

serviceName

protected String serviceName

tasks

protected Map<org.apache.commons.lang3.function.FailableRunnable<MetaException>,String> tasks

Constructor Detail

AcidHouseKeeperService

public AcidHouseKeeperService()

Method Detail

setConf

public void setConf(org.apache.hadoop.conf.Configuration configuration)

Specified by:

setConf in interface org.apache.hadoop.conf.Configurable

initTasks

protected void initTasks()

getConf

public org.apache.hadoop.conf.Configuration getConf()

Specified by:

getConf in interface org.apache.hadoop.conf.Configurable

runFrequency

public long runFrequency(TimeUnit unit)

Specified by:

runFrequency in interface MetastoreTaskThread

run

public void run()

Specified by:

run in interface Runnable