org.apache.storm.scheduler.resource

Class ResourceAwareScheduler

java.lang.Object

org.apache.storm.scheduler.resource.ResourceAwareScheduler

All Implemented Interfaces:

IScheduler

public class ResourceAwareScheduler
extends Object
implements IScheduler

Constructor Summary

Constructors

Constructor and Description
ResourceAwareScheduler()

Method Summary

Modifier and Type	Method and Description
User	getUser(String user)
Map<String,User>	getUserMap()
void	prepare(Map conf)
void	schedule(Topologies topologies, Cluster cluster) Set assignments for the topologies which needs scheduling.
void	scheduleTopology(TopologyDetails td)

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceAwareScheduler

public ResourceAwareScheduler()

Method Detail

prepare

public void prepare(Map conf)

Specified by:

prepare in interface IScheduler

schedule

public void schedule(Topologies topologies,
                     Cluster cluster)

Description copied from interface: IScheduler

Set assignments for the topologies which needs scheduling. The new assignments is available through cluster.getAssignments()

Specified by:

schedule in interface IScheduler

Parameters:

topologies - all the topologies in the cluster, some of them need schedule. Topologies object here only contain static information about topologies. Information like assignments, slots are all in the cluster object.

cluster - the cluster these topologies are running in. cluster contains everything user need to develop a new scheduling logic. e.g. supervisors information, available slots, current assignments for all the topologies etc. User can set the new assignment for topologies using cluster.setAssignmentById()`

scheduleTopology

public void scheduleTopology(TopologyDetails td)

getUser

public User getUser(String user)

getUserMap

public Map<String,User> getUserMap()