org.apache.hadoop.hive.metastore.txn

Class AcidHouseKeeperService

java.lang.Object

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

All Implemented Interfaces:

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

public class AcidHouseKeeperService
extends Object
implements MetastoreTaskThread

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

Constructor Summary

Constructors

Constructor and Description
AcidHouseKeeperService()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.conf.Configuration	getConf()
void	run()
long	runFrequency(TimeUnit unit) Get the frequency at which the thread should be scheduled in the thread pool.
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

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

getConf

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

Specified by:

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

runFrequency

public long runFrequency(TimeUnit unit)

Description copied from interface: MetastoreTaskThread

Get the frequency at which the thread should be scheduled in the thread pool. You must call Configurable.setConf(Configuration) before calling this method.

Specified by:

runFrequency in interface MetastoreTaskThread

Parameters:

unit - TimeUnit to express the frequency in.

Returns:

frequency

run

public void run()

Specified by:

run in interface Runnable