Uses of Package
org.apache.druid.discovery

Packages that use org.apache.druid.discovery

Package	Description
org.apache.druid.client
org.apache.druid.client.coordinator
org.apache.druid.client.indexing
org.apache.druid.curator.discovery
org.apache.druid.discovery
org.apache.druid.guice
org.apache.druid.query.lookup
org.apache.druid.server
org.apache.druid.server.coordinator
org.apache.druid.server.http
org.apache.druid.server.lookup.cache
org.apache.druid.server.router

Classes in org.apache.druid.discovery used by org.apache.druid.client

Class and Description
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.

Classes in org.apache.druid.discovery used by org.apache.druid.client.coordinator

Class and Description
DruidLeaderClient This class facilitates interaction with Coordinator/Overlord leader nodes.

Classes in org.apache.druid.discovery used by org.apache.druid.client.indexing

Class and Description
DruidLeaderClient This class facilitates interaction with Coordinator/Overlord leader nodes.

Classes in org.apache.druid.discovery used by org.apache.druid.curator.discovery

Class and Description
DiscoveryDruidNode Representation of all information related to discovery of a node and all the other metadata associated with the node per nodeRole such as broker, historical etc.
DruidLeaderSelector Interface for supporting Overlord and Coordinator Leader Elections in TaskMaster and DruidCoordinator which expect appropriate implementation available in guice annotated with @IndexingService and @Coordinator respectively.
DruidLeaderSelector.Listener
DruidNodeAnnouncer DiscoveryDruidNode announcer for internal discovery.
DruidNodeDiscovery Interface for discovering Druid nodes announced by DruidNodeAnnouncer.
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.
NodeRole This is a historical occasion that this enum is different from ServerType (also called "node type" in various places) because they are essentially the same abstraction, but merging them could only increase the complexity and drop the code safety, because they name the same types differently ("peon" - "indexer-executor" and "middleManager" - "realtime") and both expose them via JSON APIs.

Classes in org.apache.druid.discovery used by org.apache.druid.discovery

Class and Description
DiscoveryDruidNode Representation of all information related to discovery of a node and all the other metadata associated with the node per nodeRole such as broker, historical etc.
DruidLeaderSelector.Listener
DruidNodeDiscovery Interface for discovering Druid nodes announced by DruidNodeAnnouncer.
DruidNodeDiscovery.Listener Listener for watching nodes in a DruidNodeDiscovery instance obtained via DruidNodeDiscoveryProvider.getXXX().
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.
DruidService Metadata of a service announced by node.
NodeRole This is a historical occasion that this enum is different from ServerType (also called "node type" in various places) because they are essentially the same abstraction, but merging them could only increase the complexity and drop the code safety, because they name the same types differently ("peon" - "indexer-executor" and "middleManager" - "realtime") and both expose them via JSON APIs.

Classes in org.apache.druid.discovery used by org.apache.druid.guice

Class and Description
DataNodeService Metadata announced by any node that serves segments.
DruidLeaderClient This class facilitates interaction with Coordinator/Overlord leader nodes.
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.

Classes in org.apache.druid.discovery used by org.apache.druid.query.lookup

Class and Description
DruidLeaderClient This class facilitates interaction with Coordinator/Overlord leader nodes.
LookupNodeService Metadata announced by any node that serves queries and hence applies lookups.

Classes in org.apache.druid.discovery used by org.apache.druid.server

Class and Description
DruidLeaderSelector Interface for supporting Overlord and Coordinator Leader Elections in TaskMaster and DruidCoordinator which expect appropriate implementation available in guice annotated with @IndexingService and @Coordinator respectively.

Classes in org.apache.druid.discovery used by org.apache.druid.server.coordinator

Class and Description
DruidLeaderSelector Interface for supporting Overlord and Coordinator Leader Elections in TaskMaster and DruidCoordinator which expect appropriate implementation available in guice annotated with @IndexingService and @Coordinator respectively.

Classes in org.apache.druid.discovery used by org.apache.druid.server.http

Class and Description
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.
NodeRole This is a historical occasion that this enum is different from ServerType (also called "node type" in various places) because they are essentially the same abstraction, but merging them could only increase the complexity and drop the code safety, because they name the same types differently ("peon" - "indexer-executor" and "middleManager" - "realtime") and both expose them via JSON APIs.

Classes in org.apache.druid.discovery used by org.apache.druid.server.lookup.cache

Class and Description
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.

Classes in org.apache.druid.discovery used by org.apache.druid.server.router

Class and Description
DruidLeaderClient This class facilitates interaction with Coordinator/Overlord leader nodes.
DruidNodeDiscoveryProvider Provider of DruidNodeDiscovery instances.