public class UniformRandomRouterPolicy extends AbstractRouterPolicy
WeightedRandomRouterPolicy.
Behavior only diverges when there are active sub-clusters that are not part
of the "weights", in which case the UniformRandomRouterPolicy send
load to them, while WeightedRandomRouterPolicy does not.| Constructor and Description |
|---|
UniformRandomRouterPolicy() |
| Modifier and Type | Method and Description |
|---|---|
SubClusterId |
getHomeSubcluster(org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext appSubmissionContext,
List<SubClusterId> blackListSubClusters)
Simply picks a random active subCluster to start the AM (this does NOT
depend on the weights in the policy).
|
void |
reinitialize(FederationPolicyInitializationContext policyContext)
This method is invoked to initialize of update the configuration of
policies.
|
validate, validategetActiveSubclusters, getIsDirty, getPolicyContext, getPolicyInfo, setPolicyContext, setPolicyInfopublic void reinitialize(FederationPolicyInitializationContext policyContext) throws FederationPolicyInitializationException
ConfigurableFederationPolicyreinitialize in interface ConfigurableFederationPolicyreinitialize in class AbstractConfigurableFederationPolicypolicyContext - the new context to provide to implementor.FederationPolicyInitializationException - in case the initialization
fails.public SubClusterId getHomeSubcluster(org.apache.hadoop.yarn.api.records.ApplicationSubmissionContext appSubmissionContext, List<SubClusterId> blackListSubClusters) throws org.apache.hadoop.yarn.exceptions.YarnException
appSubmissionContext - the ApplicationSubmissionContext that
has to be routed to an appropriate subCluster for execution.blackListSubClusters - the list of subClusters as identified by
SubClusterId to blackList from the selection of the home
subCluster.org.apache.hadoop.yarn.exceptions.YarnException - if there are no active subclusters.Copyright © 2008–2023 Apache Software Foundation. All rights reserved.