Summary:
Methods
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public
static
interface
AutoRebalanceStrategy.ReplicaPlacementScheme
| org.apache.helix.controller.strategy.AutoRebalanceStrategy.ReplicaPlacementScheme |
 Known Indirect Subclasses
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Class Overview
Interface for providing a custom approach to computing a replica's affinity to a node.
Summary
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Given properties of this replica, determine the node it would prefer to be served by
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Initialize global state
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Public Methods
public abstract String getLocation (int partitionId, int replicaId, int numPartitions, int numReplicas, List<String> nodeNames)
Given properties of this replica, determine the node it would prefer to be served by
Parameters
| partitionId | The current partition |
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| replicaId | The current replica with respect to the current partition |
| numPartitions | The total number of partitions |
| numReplicas | The total number of replicas per partition |
| nodeNames | A list of identifiers of all nodes, live and non-live |
Returns
- The name of the node that would prefer to serve this replica
public abstract void init (HelixManager manager)
Initialize global state
Parameters
| manager | The instance to which this placement is associated |
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