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

Interface ResourceScheduler

All Superinterfaces:

org.apache.hadoop.yarn.event.EventHandler<SchedulerEvent>, Recoverable, YarnScheduler

All Known Subinterfaces:

PreemptableResourceScheduler

All Known Implementing Classes:

AbstractYarnScheduler, CapacityScheduler, FairScheduler, FifoScheduler

@InterfaceAudience.LimitedPrivate(value="yarn")
@InterfaceStability.Evolving
public interface ResourceScheduler
extends YarnScheduler, Recoverable

This interface is the one implemented by the schedulers. It mainly extends YarnScheduler.

Method Summary

Methods

Modifier and Type	Method and Description
void	reinitialize(org.apache.hadoop.conf.Configuration conf, RMContext rmContext) Re-initialize the ResourceScheduler.
void	setRMContext(RMContext rmContext) Set RMContext for ResourceScheduler.

Methods inherited from interface org.apache.hadoop.yarn.server.resourcemanager.scheduler.YarnScheduler

allocate, checkAccess, getAppResourceUsageReport, getAppsInQueue, getClusterResource, getMaximumResourceCapability, getMinimumResourceCapability, getNodeReport, getNumClusterNodes, getQueueInfo, getQueueUserAclInfo, getRMContainer, getRootQueueMetrics, getSchedulerAppInfo, moveApplication

Methods inherited from interface org.apache.hadoop.yarn.event.EventHandler

handle

Methods inherited from interface org.apache.hadoop.yarn.server.resourcemanager.recovery.Recoverable

recover

Method Detail

setRMContext

void setRMContext(RMContext rmContext)

Set RMContext for ResourceScheduler. This method should be called immediately after instantiating a scheduler once.

Parameters:

rmContext - created by ResourceManager

reinitialize

void reinitialize(org.apache.hadoop.conf.Configuration conf,
                RMContext rmContext)
                  throws IOException

Re-initialize the ResourceScheduler.

Parameters:

conf - configuration

Throws:

IOException