/*
* 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.flink.streaming.connectors.kafka.config;
import org.apache.flink.annotation.Internal;
/**
* The offset commit mode represents the behaviour of how offsets are externally committed back to
* Kafka brokers / Zookeeper.
*
* <p>The exact value of this is determined at runtime in the consumer subtasks.
*/
@Internal
public enum OffsetCommitMode {
/** Completely disable offset committing. */
DISABLED,
/** Commit offsets back to Kafka only when checkpoints are completed. */
ON_CHECKPOINTS,
/**
* Commit offsets periodically back to Kafka, using the auto commit functionality of internal
* Kafka clients.
*/
KAFKA_PERIODIC;
}
1、不提交offset
2、flink完成checkpoint之后提交offset 给kafka
3、定期自动提交offset给kafka
|