Package org.apache.hadoop.yarn.server.resourcemanager.scheduler

Interface AbstractUsersManager

All Known Implementing Classes:

ActiveUsersManager, UsersManager

@Private
public interface AbstractUsersManager

AbstractUsersManager tracks users in the system.

Method Summary

Modifier and Type	Method	Description
void	activateApplication(java.lang.String user, org.apache.hadoop.yarn.api.records.ApplicationId applicationId)	An application has new outstanding requests.
void	deactivateApplication(java.lang.String user, org.apache.hadoop.yarn.api.records.ApplicationId applicationId)	An application has no more outstanding requests.
int	getNumActiveUsers()	Get number of active users i.e.

Method Detail

activateApplication

void activateApplication(java.lang.String user,
                         org.apache.hadoop.yarn.api.records.ApplicationId applicationId)

An application has new outstanding requests.

Parameters:

user - application user

applicationId - activated application

deactivateApplication

void deactivateApplication(java.lang.String user,
                           org.apache.hadoop.yarn.api.records.ApplicationId applicationId)

An application has no more outstanding requests.

Parameters:

user - application user

applicationId - deactivated application

getNumActiveUsers

int getNumActiveUsers()

Get number of active users i.e. users with applications which have pending resource requests.

Returns:

number of active users