/**
* 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 common code.
*
* It inherits all the publicly documented configuration keys
* and adds unsupported keys.
*
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class CommonConfigurationKeys extends CommonConfigurationKeysPublic {
/** Default location for user home directories */
public static final String FS_HOME_DIR_KEY = "fs.homeDir";
/** Default value for FS_HOME_DIR_KEY */
public static final String FS_HOME_DIR_DEFAULT = "/user";
/** Default umask for files created in HDFS */
public static final String FS_PERMISSIONS_UMASK_KEY =
"fs.permissions.umask-mode";
/** Default value for FS_PERMISSIONS_UMASK_KEY */
public static final int FS_PERMISSIONS_UMASK_DEFAULT = 0022;
/** @deprecated not used, jira was created to remove this constant:
* https://issues.apache.org/jira/browse/HADOOP-6802
*/
public static final String FS_CLIENT_BUFFER_DIR_KEY =
"fs.client.buffer.dir";
/** How often does RPC client send pings to RPC server */
public static final String IPC_PING_INTERVAL_KEY = "ipc.ping.interval";
/** Default value for IPC_PING_INTERVAL_KEY */
public static final int IPC_PING_INTERVAL_DEFAULT = 60000; // 1 min
/** Enables pings from RPC client to the server */
public static final String IPC_CLIENT_PING_KEY = "ipc.client.ping";
/** Default value of IPC_CLIENT_PING_KEY */
public static final boolean IPC_CLIENT_PING_DEFAULT = true;
/** Responses larger than this will be logged */
public static final String IPC_SERVER_RPC_MAX_RESPONSE_SIZE_KEY =
"ipc.server.max.response.size";
/** Default value for IPC_SERVER_RPC_MAX_RESPONSE_SIZE_KEY */
public static final int IPC_SERVER_RPC_MAX_RESPONSE_SIZE_DEFAULT =
1024*1024;
/** Number of threads in RPC server reading from the socket */
public static final String IPC_SERVER_RPC_READ_THREADS_KEY =
"ipc.server.read.threadpool.size";
/** Default value for IPC_SERVER_RPC_READ_THREADS_KEY */
public static final int IPC_SERVER_RPC_READ_THREADS_DEFAULT = 1;
/** How many calls per handler are allowed in the queue. */
public static final String IPC_SERVER_HANDLER_QUEUE_SIZE_KEY =
"ipc.server.handler.queue.size";
/** Default value for IPC_SERVER_HANDLER_QUEUE_SIZE_KEY */
public static final int IPC_SERVER_HANDLER_QUEUE_SIZE_DEFAULT = 100;
/** Internal buffer size for Lzo compressor/decompressors */
public static final String IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_KEY =
"io.compression.codec.lzo.buffersize";
/** Default value for IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_KEY */
public static final int IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_DEFAULT =
64*1024;
/** This is for specifying the implementation for the mappings from
* hostnames to the racks they belong to
*/
public static final String NET_TOPOLOGY_CONFIGURED_NODE_MAPPING_KEY =
"net.topology.configured.node.mapping";
/** Internal buffer size for Snappy compressor/decompressors */
public static final String IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY =
"io.compression.codec.snappy.buffersize";
/** Default value for IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY */
public static final int IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_DEFAULT =
256 * 1024;
/** Internal buffer size for Snappy compressor/decompressors */
public static final String IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_KEY =
"io.compression.codec.lz4.buffersize";
/** Default value for IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY */
public static final int IO_COMPRESSION_CODEC_LZ4_BUFFERSIZE_DEFAULT =
256 * 1024;
/**
* Service Authorization
*/
public static final String
HADOOP_SECURITY_SERVICE_AUTHORIZATION_REFRESH_POLICY =
"security.refresh.policy.protocol.acl";
public static final String
HADOOP_SECURITY_SERVICE_AUTHORIZATION_GET_USER_MAPPINGS =
"security.get.user.mappings.protocol.acl";
public static final String
HADOOP_SECURITY_SERVICE_AUTHORIZATION_REFRESH_USER_MAPPINGS =
"security.refresh.user.mappings.protocol.acl";
public static final String HADOOP_SECURITY_TOKEN_SERVICE_USE_IP =
"hadoop.security.token.service.use_ip";
public static final boolean HADOOP_SECURITY_TOKEN_SERVICE_USE_IP_DEFAULT =
true;
}