org.apache.hadoop.hive.metastore.leader

Class HouseKeepingTasks

java.lang.Object

org.apache.hadoop.hive.metastore.leader.HouseKeepingTasks

All Implemented Interfaces:

LeaderElection.LeadershipStateListener

public class HouseKeepingTasks
extends Object
implements LeaderElection.LeadershipStateListener

Constructor Summary

Constructors

Constructor and Description
HouseKeepingTasks(org.apache.hadoop.conf.Configuration configuration, boolean runOnlyRemoteTasks)

Method Summary

Modifier and Type	Method and Description
List<MetastoreTaskThread>	getAlwaysTasks()
List<MetastoreTaskThread>	getRemoteOnlyTasks() invoke setConf(Configuration conf) before running
void	lossLeadership(LeaderElection election) Invoked when lost the election
void	takeLeadership(LeaderElection election) Invoked when won the election.

Methods inherited from class java.lang.Object

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

Constructor Detail

HouseKeepingTasks

public HouseKeepingTasks(org.apache.hadoop.conf.Configuration configuration,
                         boolean runOnlyRemoteTasks)

Method Detail

getRemoteOnlyTasks

public List<MetastoreTaskThread> getRemoteOnlyTasks()
                                             throws Exception

invoke setConf(Configuration conf) before running

Throws:

Exception

getAlwaysTasks

public List<MetastoreTaskThread> getAlwaysTasks()
                                         throws Exception

Throws:

Exception

takeLeadership

public void takeLeadership(LeaderElection election)
                    throws Exception

Description copied from interface: LeaderElection.LeadershipStateListener

Invoked when won the election.

Specified by:

takeLeadership in interface LeaderElection.LeadershipStateListener

Parameters:

election - the election where happens.

Throws:

Exception

lossLeadership

public void lossLeadership(LeaderElection election)
                    throws Exception

Description copied from interface: LeaderElection.LeadershipStateListener

Invoked when lost the election

Specified by:

lossLeadership in interface LeaderElection.LeadershipStateListener

Parameters:

election - the election where happens.

Throws:

Exception