hadoop Constants 源码
haddop Constants 代码
文件路径：/hadoop-cloud-storage-project/hadoop-cos/src/main/java/org/apache/hadoop/fs/cosn/Constants.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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.hadoop.fs.cosn;
/**
* constant definition.
*/
public final class Constants {
private Constants() {
}
public static final String BLOCK_TMP_FILE_PREFIX = "cos_";
public static final String BLOCK_TMP_FILE_SUFFIX = "_local_block";
// The maximum number of files listed in a single COS list request.
public static final int COS_MAX_LISTING_LENGTH = 999;
// The maximum number of parts supported by a multipart uploading.
public static final int MAX_PART_NUM = 10000;
// The maximum size of a part
public static final long MAX_PART_SIZE = (long) 2 * Unit.GB;
// The minimum size of a part
public static final long MIN_PART_SIZE = (long) Unit.MB;
public static final String COSN_SECRET_ID_ENV = "COSN_SECRET_ID";
public static final String COSN_SECRET_KEY_ENV = "COSN_SECRET_KEY";
}
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