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/*
 * 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.runtime.jobgraph;

import org.apache.flink.annotation.PublicEvolving;
import org.apache.flink.configuration.ConfigOption;

import static org.apache.flink.configuration.ConfigOptions.key;

/**
 * The {@link ConfigOption configuration options} used when restoring from a savepoint.
 */
@PublicEvolving
public class SavepointConfigOptions {

	/**
	 * The path to a savepoint that will be used to bootstrap the pipeline's state.
	 */
	public static final ConfigOption SAVEPOINT_PATH =
			key("execution.savepoint.path")
					.stringType()
					.noDefaultValue()
					.withDescription("Path to a savepoint to restore the job from (for example hdfs:///flink/savepoint-1537).");

	/**
	 * A flag indicating if we allow Flink to skip savepoint state that cannot be restored,
	 * e.g. because the corresponding operator has been removed.
	 */
	public static final ConfigOption SAVEPOINT_IGNORE_UNCLAIMED_STATE =
			key("execution.savepoint.ignore-unclaimed-state")
					.booleanType()
					.defaultValue(false)
					.withDescription("Allow to skip savepoint state that cannot be restored. " +
							"Allow this if you removed an operator from your pipeline after the savepoint was triggered.");
}




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