org.apache.flink.runtime.leaderretrieval

Class ZooKeeperLeaderRetrievalDriverFactory

java.lang.Object

org.apache.flink.runtime.leaderretrieval.ZooKeeperLeaderRetrievalDriverFactory

All Implemented Interfaces:

LeaderRetrievalDriverFactory

public class ZooKeeperLeaderRetrievalDriverFactory
extends Object
implements LeaderRetrievalDriverFactory

LeaderRetrievalDriverFactory implementation for Zookeeper.

Constructor Summary

Constructors

Constructor and Description
ZooKeeperLeaderRetrievalDriverFactory(org.apache.flink.shaded.curator5.org.apache.curator.framework.CuratorFramework client, String retrievalPath, ZooKeeperLeaderRetrievalDriver.LeaderInformationClearancePolicy leaderInformationClearancePolicy)

Method Summary

Modifier and Type	Method and Description
ZooKeeperLeaderRetrievalDriver	createLeaderRetrievalDriver(LeaderRetrievalEventHandler leaderEventHandler, org.apache.flink.runtime.rpc.FatalErrorHandler fatalErrorHandler) Create a specific LeaderRetrievalDriver and start the necessary services.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZooKeeperLeaderRetrievalDriverFactory

public ZooKeeperLeaderRetrievalDriverFactory(org.apache.flink.shaded.curator5.org.apache.curator.framework.CuratorFramework client,
                                             String retrievalPath,
                                             ZooKeeperLeaderRetrievalDriver.LeaderInformationClearancePolicy leaderInformationClearancePolicy)

Method Detail

createLeaderRetrievalDriver

public ZooKeeperLeaderRetrievalDriver createLeaderRetrievalDriver(LeaderRetrievalEventHandler leaderEventHandler,
                                                                  org.apache.flink.runtime.rpc.FatalErrorHandler fatalErrorHandler)
                                                           throws Exception

Description copied from interface: LeaderRetrievalDriverFactory

Create a specific LeaderRetrievalDriver and start the necessary services. For example, NodeCache in Zookeeper, ConfigMap watcher in Kubernetes. They could get the leader information change events and need to notify the leader listener by LeaderRetrievalEventHandler.

Specified by:

createLeaderRetrievalDriver in interface LeaderRetrievalDriverFactory

Parameters:

leaderEventHandler - handler for the leader retrieval driver to notify leader change events.

fatalErrorHandler - fatal error handler

Throws:

Exception - when create a specific LeaderRetrievalDriver implementation and start the necessary services.