Package org.apache.hadoop.yarn.server.federation.policies.amrmproxy

Class RejectAMRMProxyPolicy

java.lang.Object

org.apache.hadoop.yarn.server.federation.policies.AbstractConfigurableFederationPolicy

org.apache.hadoop.yarn.server.federation.policies.amrmproxy.AbstractAMRMProxyPolicy

org.apache.hadoop.yarn.server.federation.policies.amrmproxy.RejectAMRMProxyPolicy

All Implemented Interfaces:

FederationAMRMProxyPolicy, ConfigurableFederationPolicy

public class RejectAMRMProxyPolicy
extends AbstractAMRMProxyPolicy

An implementation of the FederationAMRMProxyPolicy that simply rejects all requests. Useful to prevent apps from accessing any sub-cluster.

Constructor Summary

Constructors

Constructor	Description
RejectAMRMProxyPolicy()

Method Summary

Modifier and Type	Method	Description
void	reinitialize(FederationPolicyInitializationContext policyContext)	This method is invoked to initialize of update the configuration of policies.
Map<SubClusterId,List<org.apache.hadoop.yarn.api.records.ResourceRequest>>	splitResourceRequests(List<org.apache.hadoop.yarn.api.records.ResourceRequest> resourceRequests, Set<SubClusterId> timedOutSubClusters)	Splits the ResourceRequests from the client across one or more sub-clusters based on the policy semantics (e.g., broadcast, load-based).

Methods inherited from class org.apache.hadoop.yarn.server.federation.policies.amrmproxy.AbstractAMRMProxyPolicy

notifyOfResponse, validate

Methods inherited from class org.apache.hadoop.yarn.server.federation.policies.AbstractConfigurableFederationPolicy

getActiveSubclusters, getIsDirty, getPolicyContext, getPolicyInfo, setPolicyContext, setPolicyInfo

Methods inherited from class java.lang.Object

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

Constructor Details

RejectAMRMProxyPolicy

public RejectAMRMProxyPolicy()

Method Details

reinitialize

public void reinitialize(FederationPolicyInitializationContext policyContext)
                  throws FederationPolicyInitializationException

Description copied from interface: ConfigurableFederationPolicy

This method is invoked to initialize of update the configuration of policies. The implementor should provide try-n-swap semantics, and retain state if possible.

Specified by:

reinitialize in interface ConfigurableFederationPolicy

Overrides:

reinitialize in class AbstractConfigurableFederationPolicy

Parameters:

policyContext - the new context to provide to implementor.

Throws:

FederationPolicyInitializationException - in case the initialization fails.

splitResourceRequests

public Map<SubClusterId,List<org.apache.hadoop.yarn.api.records.ResourceRequest>> splitResourceRequests(List<org.apache.hadoop.yarn.api.records.ResourceRequest> resourceRequests,
 Set<SubClusterId> timedOutSubClusters)
                                                                                                 throws org.apache.hadoop.yarn.exceptions.YarnException

Description copied from interface: FederationAMRMProxyPolicy

Splits the ResourceRequests from the client across one or more sub-clusters based on the policy semantics (e.g., broadcast, load-based).

Parameters:

resourceRequests - the list of ResourceRequests from the AM to be split

timedOutSubClusters - the set of sub-clusters that haven't had a successful heart-beat response for a while.

Returns:

map of sub-cluster as identified by SubClusterId to the list of ResourceRequests that should be forwarded to it

Throws:

org.apache.hadoop.yarn.exceptions.YarnException - in case the request is malformed or no viable sub-clusters can be found.