hadoop LocalFileSystemConfigKeys 源码
haddop LocalFileSystemConfigKeys 代码
文件路径：/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/LocalFileSystemConfigKeys.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.hadoop.fs;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
/**
* This class contains constants for configuration keys used
* in the local file system, raw local fs and checksum fs.
*
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class LocalFileSystemConfigKeys extends CommonConfigurationKeys {
public static final String LOCAL_FS_BLOCK_SIZE_KEY = "file.blocksize";
public static final long LOCAL_FS_BLOCK_SIZE_DEFAULT = 64*1024*1024;
public static final String LOCAL_FS_REPLICATION_KEY = "file.replication";
public static final short LOCAL_FS_REPLICATION_DEFAULT = 1;
public static final String LOCAL_FS_STREAM_BUFFER_SIZE_KEY =
"file.stream-buffer-size";
public static final int LOCAL_FS_STREAM_BUFFER_SIZE_DEFAULT = 4096;
public static final String LOCAL_FS_BYTES_PER_CHECKSUM_KEY =
"file.bytes-per-checksum";
public static final int LOCAL_FS_BYTES_PER_CHECKSUM_DEFAULT = 512;
public static final String LOCAL_FS_CLIENT_WRITE_PACKET_SIZE_KEY =
"file.client-write-packet-size";
public static final int LOCAL_FS_CLIENT_WRITE_PACKET_SIZE_DEFAULT = 64*1024;
}
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