public class SystemTopicEvenDistributionGoal extends AbstractGoal
balancingConstraint, finished, minMonitoredPartitionPercentage, numWindows, optimizationResultBuilder, proposalStatsBuilder
Constructor and Description |
---|
SystemTopicEvenDistributionGoal()
Default constructor for this goal.
|
Modifier and Type | Method and Description |
---|---|
protected SortedSet<Broker> |
brokersToBalance(ClusterModel clusterModel)
If new brokers are present, focus on those.
|
ModelCompletenessRequirements |
clusterModelCompletenessRequirements()
Specify the load requirements for this goal.
|
void |
finish()
Signal for finishing the process for rebalance or self-healing for this goal.
|
protected void |
initGoalState(ClusterModel clusterModel,
OptimizationOptions optimizationOptions,
Optional<OptimizationMetrics> optimizationMetricsOpt)
Initialize states that this goal requires -- e.g.
|
boolean |
isHardGoal()
This goal will not fail optimization if it can't be satisfied.
|
String |
name()
Get the name of this goal.
|
ActionAcceptance |
partitionActionAcceptance(PartitionBalancingAction action,
ClusterModel clusterModel)
Checks if the action on the partition specified by the
PartitionBalancingAction
is acceptable. |
boolean |
partitionActionSelfSatisfied(ClusterModel clusterModel,
PartitionBalancingAction action)
Check if requirements of this goal are not violated if this partition action is applied
to the given cluster state, false otherwise.
|
protected void |
rebalanceForBroker(Broker broker,
ClusterModel clusterModel,
Set<Goal> optimizedGoals,
OptimizationOptions optimizationOptions)
Rebalance the given broker without violating the constraints of the current goal and optimized goals.
|
ActionAcceptance |
replicaActionAcceptance(ReplicaBalancingAction action,
ClusterModel clusterModel)
Checks if the action on the replica specified by the
ReplicaBalancingAction
is acceptable. |
boolean |
replicaActionSelfSatisfied(ClusterModel clusterModel,
ReplicaBalancingAction action)
Check if requirements of this goal are not violated if this replica action is applied
to the given cluster state, false otherwise.
|
protected void |
updateGoalState(ClusterModel clusterModel,
Set<String> excludedTopics)
Update goal state after one round of self-healing / rebalance.
|
changeObservership, configure, maybeApplyBalancingAction, maybeApplyBalancingAction, maybeMoveReplicaBetweenDisks, optimize, proposalTrackingOptions, relocateReplica, selfSatisfied, shouldExclude, shouldExclude, shouldTryLeadershipMovement, toString, tryAcceptProposal, updateReplicationFactor
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
actionAcceptance, canChangeReplicationFactor, clusterModelStatsComparator, optimize
public SystemTopicEvenDistributionGoal()
public ActionAcceptance replicaActionAcceptance(ReplicaBalancingAction action, ClusterModel clusterModel)
GoalBalancingActionAcceptance
ReplicaBalancingAction
is acceptable.
For performance optimization purposes, it is recommended goals return the wider-level action acceptance first
(e.g ActionAcceptance.BROKER_REJECT
versus ActionAcceptance.REPLICA_REJECT
) as that helps
the proposal-generating logic short-circuit invalid proposal generations.action
- Action to be checked for acceptance.clusterModel
- State of the cluster before application of the action.public boolean replicaActionSelfSatisfied(ClusterModel clusterModel, ReplicaBalancingAction action)
GoalBalancingActionAcceptance
clusterModel
- The state of the cluster.action
- Action containing information about potential modification to the given cluster model.public ActionAcceptance partitionActionAcceptance(PartitionBalancingAction action, ClusterModel clusterModel)
GoalBalancingActionAcceptance
PartitionBalancingAction
is acceptable.
For performance optimization purposes, it is recommended goals return the wider-level action acceptance first
(e.g ActionAcceptance.BROKER_REJECT
versus ActionAcceptance.REPLICA_REJECT
) as that helps
the proposal-generating logic short-circuit invalid proposal generations.action
- Action to be checked for acceptance.clusterModel
- State of the cluster before application of the action.public boolean partitionActionSelfSatisfied(ClusterModel clusterModel, PartitionBalancingAction action)
GoalBalancingActionAcceptance
clusterModel
- The state of the cluster.action
- Action containing information about potential modification to the given cluster model.public ModelCompletenessRequirements clusterModelCompletenessRequirements()
Goal
public String name()
Goal
name
in interface Goal
name
in class AbstractGoal
public boolean isHardGoal()
protected SortedSet<Broker> brokersToBalance(ClusterModel clusterModel)
brokersToBalance
in class AbstractGoal
clusterModel
- The state of the cluster.protected void initGoalState(ClusterModel clusterModel, OptimizationOptions optimizationOptions, Optional<OptimizationMetrics> optimizationMetricsOpt) throws OptimizationFailureException
initGoalState
in class AbstractGoal
clusterModel
- The state of the cluster.optimizationOptions
- Options to take into account during optimization -- e.g. excluded topics.optimizationMetricsOpt
- An optional of OptimizationMetrics
used to capture various metrics throughout this goal's optimization run.OptimizationFailureException
- never. Optimization failures are tolerated by this goal.protected void updateGoalState(ClusterModel clusterModel, Set<String> excludedTopics) throws OptimizationFailureException
AbstractGoal
updateGoalState
in class AbstractGoal
clusterModel
- The state of the cluster.excludedTopics
- The topics that should be excluded from the optimization action.OptimizationFailureException
public void finish()
Goal
protected void rebalanceForBroker(Broker broker, ClusterModel clusterModel, Set<Goal> optimizedGoals, OptimizationOptions optimizationOptions) throws OptimizationFailureException
AbstractGoal
rebalanceForBroker
in class AbstractGoal
broker
- Broker to be balanced.clusterModel
- The state of the cluster.optimizedGoals
- Optimized goals.optimizationOptions
- Options to take into account during optimization -- e.g. excluded topics.OptimizationFailureException