public class HashBasedRouterPolicy extends AbstractRouterPolicy
FederationRouterPolicy
pick a subcluster based on the hash of
the job's queue name. Useful to provide a default behavior when too many
queues exist in a system. This also ensures that all jobs belonging to a
queue are mapped to the same sub-cluster (likely help with locality).Constructor and Description |
---|
HashBasedRouterPolicy() |
Modifier and Type | Method and Description |
---|---|
protected SubClusterId |
chooseSubCluster(String queue,
Map<SubClusterId,SubClusterInfo> preSelectSubclusters)
This method is implemented by the specific policy, and it is used to route
both reservations, and applications among a given set of
sub-clusters.
|
void |
reinitialize(FederationPolicyInitializationContext federationPolicyContext)
This method is invoked to initialize of update the configuration of
policies.
|
getHomeSubcluster, getReservationHomeSubcluster, prefilterSubClusters, validate, validate
getActiveSubclusters, getIsDirty, getPolicyContext, getPolicyInfo, setPolicyContext, setPolicyInfo
public void reinitialize(FederationPolicyInitializationContext federationPolicyContext) throws FederationPolicyInitializationException
ConfigurableFederationPolicy
reinitialize
in interface ConfigurableFederationPolicy
reinitialize
in class AbstractConfigurableFederationPolicy
federationPolicyContext
- the new context to provide to implementor.FederationPolicyInitializationException
- in case the initialization
fails.protected SubClusterId chooseSubCluster(String queue, Map<SubClusterId,SubClusterInfo> preSelectSubclusters) throws org.apache.hadoop.yarn.exceptions.YarnException
AbstractRouterPolicy
chooseSubCluster
in class AbstractRouterPolicy
queue
- the queue for this application/reservationpreSelectSubclusters
- a pre-filter set of sub-clustersorg.apache.hadoop.yarn.exceptions.YarnException
- if the policy fails to choose a sub-clusterCopyright © 2008–2024 Apache Software Foundation. All rights reserved.