kafka WorkerRebalanceListener 源码
kafka WorkerRebalanceListener 代码
文件路径：/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/WorkerRebalanceListener.java
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.kafka.connect.runtime.distributed;
import org.apache.kafka.connect.util.ConnectorTaskId;
import java.util.Collection;
/**
* Listener for rebalance events in the worker group.
*/
public interface WorkerRebalanceListener {
/**
* Invoked when a new assignment is created by joining the Connect worker group. This is
* invoked for both successful and unsuccessful assignments.
*/
void onAssigned(ExtendedAssignment assignment, int generation);
/**
* Invoked when a rebalance operation starts, revoking ownership for the set of connectors
* and tasks. Depending on the Connect protocol version, the collection of revoked connectors
* or tasks might refer to all or some of the connectors and tasks running on the worker.
*/
void onRevoked(String leader, Collection<String> connectors, Collection<ConnectorTaskId> tasks);
}
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