Package org.apache.solr.common.cloud

Common Solr Cloud and ZooKeeper related classes reused on both clients & server.

Interface Summary

Interface	Description
BeforeReconnect
CloudCollectionsListener	Callback registered with ZkStateReader.registerCloudCollectionsListener(CloudCollectionsListener) and called whenever the cloud's set of collections changes.
ClusterPropertiesListener	Listener that can be used with ZkStateReader.registerClusterPropertiesListener(ClusterPropertiesListener) and called whenever the cluster properties changes.
CollectionPropsWatcher	Callback registered with ZkStateReader.registerCollectionPropsWatcher(String, CollectionPropsWatcher) and called whenever the collection properties change.
CollectionStatePredicate	Interface to determine if a set of liveNodes and a collection's state matches some expecatations.
CollectionStateWatcher	Callback registered with ZkStateReader.registerCollectionStateWatcher(String, CollectionStateWatcher) and called whenever there is a change in the collection state or in the list of liveNodes.
DocCollectionWatcher	Callback registered with ZkStateReader.registerDocCollectionWatcher(String, DocCollectionWatcher) and called whenever the DocCollection changes.
LiveNodesListener	Listener that can be used with ZkStateReader.registerLiveNodesListener(LiveNodesListener) and called whenever the live nodes set changes.
LiveNodesPredicate	Interface to determine if live nodes matches a required state
OnReconnect	Implementations are expected to implement a correct hashCode and equals method needed to uniquely identify the listener as listeners are managed in a Set.
SolrClassLoader	A generic interface to load plugin classes
ZkACLProvider
ZkClientConnectionStrategy.ConnectedListener
ZkClientConnectionStrategy.DisconnectedListener
ZkClientConnectionStrategy.ZkUpdate
ZkCredentialsProvider
ZkMaintenanceUtils.ZkVisitor
ZkOperation<T>	A callback object which can be used for implementing retry-able operations.

Class Summary

Class	Description
Aliases	Holds collection aliases -- virtual collections that point to one or more other collections.
ClusterProperties	Interact with solr cluster properties
ClusterState	Immutable state of the cloud.
ClusterState.CollectionRef
ClusterStateUtil
CollectionProperties	Interact with solr collection properties
CompositeIdRouter	CompositeIdRouter partitions ids based on a CompositeIdRouter.SEPARATOR, hashes each partition and merges the hashes together to map the id to a slice.
ConnectionManager
ConnectionManager.IsClosed
DefaultConnectionStrategy	TODO: improve backoff retry impl
DefaultZkACLProvider
DefaultZkCredentialsProvider
DocCollection	Models a Collection in zookeeper (but that Java name is obviously taken, hence "DocCollection")
DocRouter	Class to partition int range into n ranges.
DocRouter.Range
HashBasedRouter
ImplicitDocRouter	This document router is for custom sharding
NodesSysPropsCacher	Caching other nodes system properties.
PerReplicaStates	This represents the individual replica states in a collection This is an immutable object.
PerReplicaStates.Operation
PerReplicaStates.State	The state of a replica as stored as a node under /collections/collection-name/state.json/replica-state
PerReplicaStatesOps	This is a helper class that encapsulates various operations performed on the per-replica states Do not directly manipulate the per replica states as it can become difficult to debug them
PlainIdRouter
Replica
ReplicaPosition
RoutingRule	Used for routing docs with particular keys into another collection
SaslZkACLProvider	ZkACLProvider that gives all permissions for the user specified in System property "solr.authorization.superuser" (default: "solr") when using sasl, and gives read permissions for anyone else.
SecurityAwareZkACLProvider	ZkACLProvider capable of returning a different set of ACLs for security-related znodes (default: subtree under /security and security.json) vs non-security-related znodes.
Slice	A Slice contains immutable information about a logical shard (all replicas that share the same shard id).
SolrZkClient	All Solr ZooKeeper interactions should go through this class rather than ZooKeeper.
SolrZooKeeper
VMParamsAllAndReadonlyDigestZkACLProvider
VMParamsSingleSetCredentialsDigestZkCredentialsProvider
ZkClientConnectionStrategy
ZkCmdExecutor
ZkCoreNodeProps
ZkCredentialsProvider.ZkCredentials
ZkDynamicConfig	Class holding the dynamic config of a Zookeeper ensemble as fetched from znode /zookeeper/config.
ZkDynamicConfig.Server	Object representing one line in Zk dynamic config
ZkMaintenanceUtils	Class to hold ZK upload/download/move common code.
ZkNodeProps	ZkNodeProps contains generic immutable properties.
ZkStateReader
ZkStateReader.ConfigData

Enum Summary

Enum	Description
PerReplicaStates.Operation.Type
Replica.State	The replica's state.
Replica.Type
Slice.State	The slice's state.
ZkMaintenanceUtils.VISIT_ORDER

Exception Summary

Exception	Description
ZooKeeperException