org.apache.solr.cloud.rule

Class ReplicaAssigner

java.lang.Object

org.apache.solr.cloud.rule.ReplicaAssigner

public class ReplicaAssigner
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ReplicaAssigner.Position

Field Summary

Fields

Modifier and Type	Field and Description
Map<String,SnitchContext>	failedNodes

Constructor Summary

Constructors

Constructor and Description
ReplicaAssigner(List<Rule> rules, Map<String,Integer> shardVsReplicaCount, List snitches, Map<String,Map<String,Integer>> shardVsNodes, List<String> liveNodes, CoreContainer cc, ClusterState clusterState)

Method Summary

Methods

Modifier and Type	Method and Description
Map<ReplicaAssigner.Position,String>	getNodeMappings() For each shard return a new set of nodes where the replicas need to be created satisfying the specified rule
Map<String,Map<String,Object>>	getNodeVsTags()
static Iterator<int[]>	permutations(int level) get all permutations for the int[] whose items are 0..level
static void	verifySnitchConf(CoreContainer cc, List snitchConf)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

failedNodes

public Map<String,SnitchContext> failedNodes

Constructor Detail

ReplicaAssigner

public ReplicaAssigner(List<Rule> rules,
               Map<String,Integer> shardVsReplicaCount,
               List snitches,
               Map<String,Map<String,Integer>> shardVsNodes,
               List<String> liveNodes,
               CoreContainer cc,
               ClusterState clusterState)

Parameters:

shardVsReplicaCount - shard names vs no:of replicas required for each of those shards

snitches - snitches details

shardVsNodes - The current state of the system. can be an empty map if no nodes are created in this collection till now

Method Detail

getNodeVsTags

public Map<String,Map<String,Object>> getNodeVsTags()

getNodeMappings

public Map<ReplicaAssigner.Position,String> getNodeMappings()

For each shard return a new set of nodes where the replicas need to be created satisfying the specified rule

permutations

public static Iterator<int[]> permutations(int level)

get all permutations for the int[] whose items are 0..level

verifySnitchConf

public static void verifySnitchConf(CoreContainer cc,
                    List snitchConf)