org.apache.hadoop.fs.s3.S3FileSystemConfigKeys Maven / Gradle / Ivy

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This module contains code to support integration with Amazon Web Services. It also declares the dependencies needed to work with AWS services.

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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.hadoop.fs.s3;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.CommonConfigurationKeys;

/** 
 * This class contains constants for configuration keys used
 * in the s3 file system. 
 *
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class S3FileSystemConfigKeys extends CommonConfigurationKeys {
  public static final String  S3_BLOCK_SIZE_KEY = "s3.blocksize";
  public static final long    S3_BLOCK_SIZE_DEFAULT = 64*1024*1024;
  public static final String  S3_REPLICATION_KEY = "s3.replication";
  public static final short   S3_REPLICATION_DEFAULT = 1;
  public static final String  S3_STREAM_BUFFER_SIZE_KEY = 
                                                    "s3.stream-buffer-size";
  public static final int     S3_STREAM_BUFFER_SIZE_DEFAULT = 4096;
  public static final String  S3_BYTES_PER_CHECKSUM_KEY = 
                                                    "s3.bytes-per-checksum";
  public static final int     S3_BYTES_PER_CHECKSUM_DEFAULT = 512;
  public static final String  S3_CLIENT_WRITE_PACKET_SIZE_KEY =
                                                    "s3.client-write-packet-size";
  public static final int     S3_CLIENT_WRITE_PACKET_SIZE_DEFAULT = 64*1024;
}