Package org.apache.solr.cloud.api.collections

Class Assign

java.lang.Object

org.apache.solr.cloud.api.collections.Assign

public class Assign
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Assign.AssignmentException	Thrown if there is an exception while assigning nodes for replicas
static class	Assign.AssignRequest
static class	Assign.AssignRequestBuilder
static interface	Assign.AssignStrategy
static class	Assign.AssignStrategyFactory
static class	Assign.LegacyAssignStrategy
static class	Assign.PolicyBasedAssignStrategy
static class	Assign.RulesBasedAssignStrategy

Constructor Summary

Constructors

Constructor	Description
Assign()

Method Summary

Modifier and Type	Method	Description
static String	assignCoreNodeName(DistribStateManager stateManager, DocCollection collection)
static String	assignShard(DocCollection collection, Integer numShards)	Assign a new unique id up to slices count - then add replicas evenly.
static String	buildSolrCoreName(String collectionName, String shard, Replica.Type type, int replicaNum)
static String	buildSolrCoreName(DistribStateManager stateManager, DocCollection collection, String shard, Replica.Type type)
static String	buildSolrCoreName(DistribStateManager stateManager, DocCollection collection, String shard, Replica.Type type, boolean newCollection)
static String	getCounterNodePath(String collection)
static List<String>	getLiveOrLiveAndCreateNodeSetList(Set<String> liveNodes, ZkNodeProps message, Random random)
static List<ReplicaPosition>	getNodesForNewReplicas(ClusterState clusterState, String collectionName, String shard, int nrtReplicas, int tlogReplicas, int pullReplicas, Object createNodeSet, SolrCloudManager cloudManager)
static List<ReplicaPosition>	getPositionsUsingPolicy(String collName, List<String> shardNames, int nrtReplicas, int tlogReplicas, int pullReplicas, String policyName, SolrCloudManager cloudManager, List<String> nodesList)
static int	incAndGetId(DistribStateManager stateManager, String collection, int defaultValue)
static boolean	usePolicyFramework(SolrCloudManager cloudManager)	Note: where possible, the usePolicyFramework(DocCollection, SolrCloudManager) method should be used instead of this method
static boolean	usePolicyFramework(DocCollection collection, SolrCloudManager cloudManager)

Methods inherited from class java.lang.Object

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

Constructor Detail

Assign

public Assign()

Method Detail

getCounterNodePath

public static String getCounterNodePath(String collection)

incAndGetId

public static int incAndGetId(DistribStateManager stateManager,
                              String collection,
                              int defaultValue)

assignCoreNodeName

public static String assignCoreNodeName(DistribStateManager stateManager,
                                        DocCollection collection)

assignShard

public static String assignShard(DocCollection collection,
                                 Integer numShards)

Assign a new unique id up to slices count - then add replicas evenly.

Returns:

the assigned shard id

buildSolrCoreName

public static String buildSolrCoreName(String collectionName,
                                       String shard,
                                       Replica.Type type,
                                       int replicaNum)

buildSolrCoreName

public static String buildSolrCoreName(DistribStateManager stateManager,
                                       DocCollection collection,
                                       String shard,
                                       Replica.Type type,
                                       boolean newCollection)

buildSolrCoreName

public static String buildSolrCoreName(DistribStateManager stateManager,
                                       DocCollection collection,
                                       String shard,
                                       Replica.Type type)

getLiveOrLiveAndCreateNodeSetList

public static List<String> getLiveOrLiveAndCreateNodeSetList(Set<String> liveNodes,
                                                             ZkNodeProps message,
                                                             Random random)

usePolicyFramework

public static boolean usePolicyFramework(SolrCloudManager cloudManager)
                                  throws IOException,
                                         InterruptedException

Note: where possible, the usePolicyFramework(DocCollection, SolrCloudManager) method should be used instead of this method

Returns:

true if autoscaling policy framework should be used for replica placement

Throws:

IOException

InterruptedException

usePolicyFramework

public static boolean usePolicyFramework(DocCollection collection,
                                         SolrCloudManager cloudManager)
                                  throws IOException,
                                         InterruptedException

Returns:

true if auto scaling policy framework should be used for replica placement for this collection, otherwise false

Throws:

IOException

InterruptedException

getNodesForNewReplicas

public static List<ReplicaPosition> getNodesForNewReplicas(ClusterState clusterState,
                                                           String collectionName,
                                                           String shard,
                                                           int nrtReplicas,
                                                           int tlogReplicas,
                                                           int pullReplicas,
                                                           Object createNodeSet,
                                                           SolrCloudManager cloudManager)
                                                    throws IOException,
                                                           InterruptedException,
                                                           Assign.AssignmentException

Throws:

IOException

InterruptedException

Assign.AssignmentException

getPositionsUsingPolicy

public static List<ReplicaPosition> getPositionsUsingPolicy(String collName,
                                                            List<String> shardNames,
                                                            int nrtReplicas,
                                                            int tlogReplicas,
                                                            int pullReplicas,
                                                            String policyName,
                                                            SolrCloudManager cloudManager,
                                                            List<String> nodesList)
                                                     throws IOException,
                                                            InterruptedException,
                                                            Assign.AssignmentException

Throws:

IOException

InterruptedException

Assign.AssignmentException