@InterfaceAudience.Private public final class FederationPolicyUtils extends Object
| Modifier and Type | Field and Description |
|---|---|
static String |
NO_ACTIVE_SUBCLUSTER_AVAILABLE |
| Modifier and Type | Method and Description |
|---|---|
static int |
getWeightedRandom(ArrayList<Float> weights)
Select a random bin according to the weight array for the bins.
|
static FederationPolicyManager |
instantiatePolicyManager(String newType)
A utilize method to instantiate a policy manager class given the type
(class name) from
SubClusterPolicyConfiguration. |
static FederationAMRMProxyPolicy |
loadAMRMPolicy(String queue,
FederationAMRMProxyPolicy oldPolicy,
org.apache.hadoop.conf.Configuration conf,
FederationStateStoreFacade federationFacade,
SubClusterId homeSubClusterId)
Get AMRMProxy policy from state store, using default queue and
configuration as fallback.
|
static SubClusterPolicyConfiguration |
loadPolicyConfiguration(String queue,
org.apache.hadoop.conf.Configuration conf,
FederationStateStoreFacade federationFacade)
Get Federation policy configuration from state store, using default queue
and configuration as fallback.
|
static void |
validateSubClusterAvailability(List<SubClusterId> activeSubClusters,
List<SubClusterId> blackListSubClusters)
Validate if there is any active subcluster that is not blacklisted, it will
throw an exception if there are no usable subclusters.
|
public static final String NO_ACTIVE_SUBCLUSTER_AVAILABLE
public static FederationPolicyManager instantiatePolicyManager(String newType) throws FederationPolicyInitializationException
SubClusterPolicyConfiguration.newType - class name of the policy manager to createFederationPolicyInitializationException - if failspublic static SubClusterPolicyConfiguration loadPolicyConfiguration(String queue, org.apache.hadoop.conf.Configuration conf, FederationStateStoreFacade federationFacade)
queue - the queue of the applicationconf - the Yarn configurationfederationFacade - state store facadepublic static FederationAMRMProxyPolicy loadAMRMPolicy(String queue, FederationAMRMProxyPolicy oldPolicy, org.apache.hadoop.conf.Configuration conf, FederationStateStoreFacade federationFacade, SubClusterId homeSubClusterId) throws FederationPolicyInitializationException
queue - the queue of the applicationoldPolicy - the previous policy instance (can be null)conf - the Yarn configurationfederationFacade - state store facadehomeSubClusterId - home sub-cluster idFederationPolicyInitializationException - if failspublic static void validateSubClusterAvailability(List<SubClusterId> activeSubClusters, List<SubClusterId> blackListSubClusters) throws FederationPolicyException
activeSubClusters - the list of subClusters as identified by
SubClusterId currently active.blackListSubClusters - the list of subClusters as identified by
SubClusterId to blackList from the selection of the home
subCluster.FederationPolicyException - if there are no usable subclusters.public static int getWeightedRandom(ArrayList<Float> weights)
weights - the weight arrayCopyright © 2022 Apache Software Foundation. All rights reserved.