public class ReplicaCapacityGoal extends AbstractGoal
Goal.ClusterModelStatsComparator
balancingConstraint, finished, minMonitoredPartitionPercentage, numWindows, optimizationResultBuilder
Constructor and Description |
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ReplicaCapacityGoal()
Constructor for Replica Capacity Goal.
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Modifier and Type | Method and Description |
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ActionAcceptance |
actionAcceptance(BalancingAction action,
ClusterModel clusterModel)
Check whether given action is acceptable by this goal.
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protected SortedSet<Broker> |
brokersToBalance(ClusterModel clusterModel)
This is a hard goal; hence, the proposals are not limited to dead broker replicas in case of self-healing.
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ModelCompletenessRequirements |
clusterModelCompletenessRequirements()
Specify the load requirements for this goal.
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void |
finish()
Signal for finishing the process for rebalance or self-healing for this goal.
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protected void |
initGoalState(ClusterModel clusterModel,
OptimizationOptions optimizationOptions)
This is a hard goal; hence, the proposals are not limited to dead broker replicas in case of self-healing.
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boolean |
isHardGoal()
True if this is a hard goal, false otherwise.
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String |
name()
Get the name of this goal.
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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.
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protected boolean |
selfSatisfied(ClusterModel clusterModel,
BalancingAction action)
Check if requirements of this goal are not violated if this action is applied to the given cluster state,
false otherwise.
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protected void |
updateGoalState(ClusterModel clusterModel,
Set<String> excludedTopics)
Update goal state after one round of self-healing / rebalance.
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changeObservership, configure, maybeApplyBalancingAction, maybeMoveReplicaBetweenDisks, optimize, shouldExclude, toString, updateReplicationFactor
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
canChangeReplicationFactor, clusterModelStatsComparator
public ReplicaCapacityGoal()
public ActionAcceptance actionAcceptance(BalancingAction action, ClusterModel clusterModel)
action
- Action to be checked for acceptance.clusterModel
- The state of the cluster.ActionAcceptance.ACCEPT
if the action is acceptable by this goal,
ActionAcceptance.REPLICA_REJECT
otherwise.public ModelCompletenessRequirements clusterModelCompletenessRequirements()
Goal
public String name()
Goal
name
in interface Goal
name
in class AbstractGoal
public boolean isHardGoal()
Goal
protected SortedSet<Broker> brokersToBalance(ClusterModel clusterModel)
brokersToBalance
in class AbstractGoal
clusterModel
- The state of the cluster.protected void initGoalState(ClusterModel clusterModel, OptimizationOptions optimizationOptions) throws OptimizationFailureException
initGoalState
in class AbstractGoal
clusterModel
- The state of the cluster.optimizationOptions
- Options to take into account during optimization.OptimizationFailureException
protected boolean selfSatisfied(ClusterModel clusterModel, BalancingAction action)
selfSatisfied
in class AbstractGoal
clusterModel
- The state of the cluster.action
- Action containing information about potential modification to the given cluster model.protected void updateGoalState(ClusterModel clusterModel, Set<String> excludedTopics) throws OptimizationFailureException
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
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