001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.apache.hadoop.fs; 020 021import org.apache.hadoop.classification.InterfaceAudience; 022import org.apache.hadoop.crypto.CipherSuite; 023import org.apache.hadoop.crypto.JceAesCtrCryptoCodec; 024import org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec; 025 026/** 027 * This class contains constants for configuration keys used 028 * in the common code. 029 * 030 * It includes all publicly documented configuration keys. In general 031 * this class should not be used directly (use CommonConfigurationKeys 032 * instead) 033 * 034 */ 035 036@InterfaceAudience.Public 037public class CommonConfigurationKeysPublic { 038 039 // The Keys 040 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 041 public static final String NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_KEY = 042 "net.topology.script.number.args"; 043 /** Default value for NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_KEY */ 044 public static final int NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_DEFAULT = 100; 045 046 //FS keys 047 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 048 public static final String FS_DEFAULT_NAME_KEY = "fs.defaultFS"; 049 /** Default value for FS_DEFAULT_NAME_KEY */ 050 public static final String FS_DEFAULT_NAME_DEFAULT = "file:///"; 051 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 052 public static final String FS_DF_INTERVAL_KEY = "fs.df.interval"; 053 /** Default value for FS_DF_INTERVAL_KEY */ 054 public static final long FS_DF_INTERVAL_DEFAULT = 60000; 055 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 056 public static final String FS_DU_INTERVAL_KEY = "fs.du.interval"; 057 /** Default value for FS_DU_INTERVAL_KEY */ 058 public static final long FS_DU_INTERVAL_DEFAULT = 600000; 059 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 060 public static final String FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_KEY = 061 "fs.client.resolve.remote.symlinks"; 062 /** Default value for FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_KEY */ 063 public static final boolean FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_DEFAULT = true; 064 065 066 //Defaults are not specified for following keys 067 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 068 public static final String NET_TOPOLOGY_SCRIPT_FILE_NAME_KEY = 069 "net.topology.script.file.name"; 070 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 071 public static final String NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY = 072 "net.topology.node.switch.mapping.impl"; 073 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 074 public static final String NET_TOPOLOGY_IMPL_KEY = 075 "net.topology.impl"; 076 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 077 public static final String NET_TOPOLOGY_TABLE_MAPPING_FILE_KEY = 078 "net.topology.table.file.name"; 079 public static final String NET_DEPENDENCY_SCRIPT_FILE_NAME_KEY = 080 "net.topology.dependency.script.file.name"; 081 082 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 083 public static final String FS_TRASH_CHECKPOINT_INTERVAL_KEY = 084 "fs.trash.checkpoint.interval"; 085 /** Default value for FS_TRASH_CHECKPOINT_INTERVAL_KEY */ 086 public static final long FS_TRASH_CHECKPOINT_INTERVAL_DEFAULT = 0; 087 088 /** 089 * Directories that cannot be removed unless empty, even by an 090 * administrator. 091 */ 092 public static final String FS_PROTECTED_DIRECTORIES = 093 "fs.protected.directories"; 094 095 // TBD: Code is still using hardcoded values (e.g. "fs.automatic.close") 096 // instead of constant (e.g. FS_AUTOMATIC_CLOSE_KEY) 097 // 098 /** Not used anywhere, looks like default value for FS_LOCAL_BLOCK_SIZE */ 099 public static final long FS_LOCAL_BLOCK_SIZE_DEFAULT = 32*1024*1024; 100 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 101 public static final String FS_AUTOMATIC_CLOSE_KEY = "fs.automatic.close"; 102 /** Default value for FS_AUTOMATIC_CLOSE_KEY */ 103 public static final boolean FS_AUTOMATIC_CLOSE_DEFAULT = true; 104 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 105 public static final String FS_FILE_IMPL_KEY = "fs.file.impl"; 106 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 107 public static final String FS_FTP_HOST_KEY = "fs.ftp.host"; 108 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 109 public static final String FS_FTP_HOST_PORT_KEY = "fs.ftp.host.port"; 110 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 111 public static final String FS_TRASH_INTERVAL_KEY = "fs.trash.interval"; 112 /** Default value for FS_TRASH_INTERVAL_KEY */ 113 public static final long FS_TRASH_INTERVAL_DEFAULT = 0; 114 115 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 116 public static final String IO_MAPFILE_BLOOM_SIZE_KEY = 117 "io.mapfile.bloom.size"; 118 /** Default value for IO_MAPFILE_BLOOM_SIZE_KEY */ 119 public static final int IO_MAPFILE_BLOOM_SIZE_DEFAULT = 1024*1024; 120 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 121 public static final String IO_MAPFILE_BLOOM_ERROR_RATE_KEY = 122 "io.mapfile.bloom.error.rate" ; 123 /** Default value for IO_MAPFILE_BLOOM_ERROR_RATE_KEY */ 124 public static final float IO_MAPFILE_BLOOM_ERROR_RATE_DEFAULT = 0.005f; 125 /** Codec class that implements Lzo compression algorithm */ 126 public static final String IO_COMPRESSION_CODEC_LZO_CLASS_KEY = 127 "io.compression.codec.lzo.class"; 128 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 129 public static final String IO_MAP_INDEX_INTERVAL_KEY = 130 "io.map.index.interval"; 131 /** Default value for IO_MAP_INDEX_INTERVAL_DEFAULT */ 132 public static final int IO_MAP_INDEX_INTERVAL_DEFAULT = 128; 133 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 134 public static final String IO_MAP_INDEX_SKIP_KEY = "io.map.index.skip"; 135 /** Default value for IO_MAP_INDEX_SKIP_KEY */ 136 public static final int IO_MAP_INDEX_SKIP_DEFAULT = 0; 137 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 138 public static final String IO_SEQFILE_COMPRESS_BLOCKSIZE_KEY = 139 "io.seqfile.compress.blocksize"; 140 /** Default value for IO_SEQFILE_COMPRESS_BLOCKSIZE_KEY */ 141 public static final int IO_SEQFILE_COMPRESS_BLOCKSIZE_DEFAULT = 1000000; 142 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 143 public static final String IO_FILE_BUFFER_SIZE_KEY = 144 "io.file.buffer.size"; 145 /** Default value for IO_FILE_BUFFER_SIZE_KEY */ 146 public static final int IO_FILE_BUFFER_SIZE_DEFAULT = 4096; 147 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 148 public static final String IO_SKIP_CHECKSUM_ERRORS_KEY = 149 "io.skip.checksum.errors"; 150 /** Default value for IO_SKIP_CHECKSUM_ERRORS_KEY */ 151 public static final boolean IO_SKIP_CHECKSUM_ERRORS_DEFAULT = false; 152 /** 153 * @deprecated Moved to mapreduce, see mapreduce.task.io.sort.mb 154 * in mapred-default.xml 155 * See https://issues.apache.org/jira/browse/HADOOP-6801 156 */ 157 public static final String IO_SORT_MB_KEY = "io.sort.mb"; 158 /** Default value for IO_SORT_MB_DEFAULT */ 159 public static final int IO_SORT_MB_DEFAULT = 100; 160 /** 161 * @deprecated Moved to mapreduce, see mapreduce.task.io.sort.factor 162 * in mapred-default.xml 163 * See https://issues.apache.org/jira/browse/HADOOP-6801 164 */ 165 public static final String IO_SORT_FACTOR_KEY = "io.sort.factor"; 166 /** Default value for IO_SORT_FACTOR_DEFAULT */ 167 public static final int IO_SORT_FACTOR_DEFAULT = 100; 168 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 169 public static final String IO_SERIALIZATIONS_KEY = "io.serializations"; 170 171 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 172 public static final String TFILE_IO_CHUNK_SIZE_KEY = "tfile.io.chunk.size"; 173 /** Default value for TFILE_IO_CHUNK_SIZE_DEFAULT */ 174 public static final int TFILE_IO_CHUNK_SIZE_DEFAULT = 1024*1024; 175 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 176 public static final String TFILE_FS_INPUT_BUFFER_SIZE_KEY = 177 "tfile.fs.input.buffer.size"; 178 /** Default value for TFILE_FS_INPUT_BUFFER_SIZE_KEY */ 179 public static final int TFILE_FS_INPUT_BUFFER_SIZE_DEFAULT = 256*1024; 180 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 181 public static final String TFILE_FS_OUTPUT_BUFFER_SIZE_KEY = 182 "tfile.fs.output.buffer.size"; 183 /** Default value for TFILE_FS_OUTPUT_BUFFER_SIZE_KEY */ 184 public static final int TFILE_FS_OUTPUT_BUFFER_SIZE_DEFAULT = 256*1024; 185 186 public static final String HADOOP_CALLER_CONTEXT_ENABLED_KEY = 187 "hadoop.caller.context.enabled"; 188 public static final boolean HADOOP_CALLER_CONTEXT_ENABLED_DEFAULT = false; 189 public static final String HADOOP_CALLER_CONTEXT_MAX_SIZE_KEY = 190 "hadoop.caller.context.max.size"; 191 public static final int HADOOP_CALLER_CONTEXT_MAX_SIZE_DEFAULT = 128; 192 public static final String HADOOP_CALLER_CONTEXT_SIGNATURE_MAX_SIZE_KEY = 193 "hadoop.caller.context.signature.max.size"; 194 public static final int HADOOP_CALLER_CONTEXT_SIGNATURE_MAX_SIZE_DEFAULT = 195 40; 196 197 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 198 public static final String IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY = 199 "ipc.client.connection.maxidletime"; 200 /** Default value for IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY */ 201 public static final int IPC_CLIENT_CONNECTION_MAXIDLETIME_DEFAULT = 10000; // 10s 202 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 203 public static final String IPC_CLIENT_CONNECT_TIMEOUT_KEY = 204 "ipc.client.connect.timeout"; 205 /** Default value for IPC_CLIENT_CONNECT_TIMEOUT_KEY */ 206 public static final int IPC_CLIENT_CONNECT_TIMEOUT_DEFAULT = 20000; // 20s 207 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 208 public static final String IPC_CLIENT_CONNECT_MAX_RETRIES_KEY = 209 "ipc.client.connect.max.retries"; 210 /** Default value for IPC_CLIENT_CONNECT_MAX_RETRIES_KEY */ 211 public static final int IPC_CLIENT_CONNECT_MAX_RETRIES_DEFAULT = 10; 212 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 213 public static final String IPC_CLIENT_CONNECT_RETRY_INTERVAL_KEY = 214 "ipc.client.connect.retry.interval"; 215 /** Default value for IPC_CLIENT_CONNECT_RETRY_INTERVAL_KEY */ 216 public static final int IPC_CLIENT_CONNECT_RETRY_INTERVAL_DEFAULT = 1000; 217 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 218 public static final String IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SOCKET_TIMEOUTS_KEY = 219 "ipc.client.connect.max.retries.on.timeouts"; 220 /** Default value for IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SOCKET_TIMEOUTS_KEY */ 221 public static final int IPC_CLIENT_CONNECT_MAX_RETRIES_ON_SOCKET_TIMEOUTS_DEFAULT = 45; 222 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 223 public static final String IPC_CLIENT_TCPNODELAY_KEY = 224 "ipc.client.tcpnodelay"; 225 /** Default value for IPC_CLIENT_TCPNODELAY_KEY */ 226 public static final boolean IPC_CLIENT_TCPNODELAY_DEFAULT = true; 227 /** Enable low-latency connections from the client */ 228 public static final String IPC_CLIENT_LOW_LATENCY = "ipc.client.low-latency"; 229 /** Default value of IPC_CLIENT_LOW_LATENCY */ 230 public static final boolean IPC_CLIENT_LOW_LATENCY_DEFAULT = false; 231 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 232 public static final String IPC_SERVER_LISTEN_QUEUE_SIZE_KEY = 233 "ipc.server.listen.queue.size"; 234 /** Default value for IPC_SERVER_LISTEN_QUEUE_SIZE_KEY */ 235 public static final int IPC_SERVER_LISTEN_QUEUE_SIZE_DEFAULT = 128; 236 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 237 public static final String IPC_CLIENT_KILL_MAX_KEY = "ipc.client.kill.max"; 238 /** Default value for IPC_CLIENT_KILL_MAX_KEY */ 239 public static final int IPC_CLIENT_KILL_MAX_DEFAULT = 10; 240 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 241 public static final String IPC_CLIENT_IDLETHRESHOLD_KEY = 242 "ipc.client.idlethreshold"; 243 /** Default value for IPC_CLIENT_IDLETHRESHOLD_DEFAULT */ 244 public static final int IPC_CLIENT_IDLETHRESHOLD_DEFAULT = 4000; 245 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 246 public static final String IPC_SERVER_TCPNODELAY_KEY = 247 "ipc.server.tcpnodelay"; 248 /** Default value for IPC_SERVER_TCPNODELAY_KEY */ 249 public static final boolean IPC_SERVER_TCPNODELAY_DEFAULT = true; 250 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 251 public static final String IPC_SERVER_MAX_CONNECTIONS_KEY = 252 "ipc.server.max.connections"; 253 /** Default value for IPC_SERVER_MAX_CONNECTIONS_KEY */ 254 public static final int IPC_SERVER_MAX_CONNECTIONS_DEFAULT = 0; 255 256 /** Logs if a RPC is really slow compared to rest of RPCs. */ 257 public static final String IPC_SERVER_LOG_SLOW_RPC = 258 "ipc.server.log.slow.rpc"; 259 public static final boolean IPC_SERVER_LOG_SLOW_RPC_DEFAULT = false; 260 261 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 262 public static final String HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_KEY = 263 "hadoop.rpc.socket.factory.class.default"; 264 public static final String HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_DEFAULT = 265 "org.apache.hadoop.net.StandardSocketFactory"; 266 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 267 public static final String HADOOP_SOCKS_SERVER_KEY = "hadoop.socks.server"; 268 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 269 public static final String HADOOP_UTIL_HASH_TYPE_KEY = 270 "hadoop.util.hash.type"; 271 /** Default value for HADOOP_UTIL_HASH_TYPE_KEY */ 272 public static final String HADOOP_UTIL_HASH_TYPE_DEFAULT = "murmur"; 273 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 274 public static final String HADOOP_SECURITY_GROUP_MAPPING = 275 "hadoop.security.group.mapping"; 276 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 277 public static final String HADOOP_SECURITY_GROUPS_CACHE_SECS = 278 "hadoop.security.groups.cache.secs"; 279 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 280 public static final long HADOOP_SECURITY_GROUPS_CACHE_SECS_DEFAULT = 281 300; 282 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 283 public static final String HADOOP_SECURITY_GROUPS_NEGATIVE_CACHE_SECS = 284 "hadoop.security.groups.negative-cache.secs"; 285 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 286 public static final long HADOOP_SECURITY_GROUPS_NEGATIVE_CACHE_SECS_DEFAULT = 287 30; 288 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 289 public static final String HADOOP_SECURITY_GROUPS_CACHE_WARN_AFTER_MS = 290 "hadoop.security.groups.cache.warn.after.ms"; 291 public static final long HADOOP_SECURITY_GROUPS_CACHE_WARN_AFTER_MS_DEFAULT = 292 5000; 293 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 294 public static final String HADOOP_SECURITY_AUTHENTICATION = 295 "hadoop.security.authentication"; 296 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 297 public static final String HADOOP_SECURITY_AUTHORIZATION = 298 "hadoop.security.authorization"; 299 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 300 public static final String HADOOP_SECURITY_INSTRUMENTATION_REQUIRES_ADMIN = 301 "hadoop.security.instrumentation.requires.admin"; 302 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 303 public static final String HADOOP_SECURITY_SERVICE_USER_NAME_KEY = 304 "hadoop.security.service.user.name.key"; 305 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 306 public static final String HADOOP_SECURITY_AUTH_TO_LOCAL = 307 "hadoop.security.auth_to_local"; 308 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 309 public static final String HADOOP_SECURITY_DNS_INTERFACE_KEY = 310 "hadoop.security.dns.interface"; 311 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 312 public static final String HADOOP_SECURITY_DNS_NAMESERVER_KEY = 313 "hadoop.security.dns.nameserver"; 314 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 315 public static final String HADOOP_TOKEN_FILES = 316 "hadoop.token.files"; 317 318 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 319 public static final String HADOOP_KERBEROS_MIN_SECONDS_BEFORE_RELOGIN = 320 "hadoop.kerberos.min.seconds.before.relogin"; 321 /** Default value for HADOOP_KERBEROS_MIN_SECONDS_BEFORE_RELOGIN */ 322 public static final int HADOOP_KERBEROS_MIN_SECONDS_BEFORE_RELOGIN_DEFAULT = 323 60; 324 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 325 public static final String HADOOP_RPC_PROTECTION = 326 "hadoop.rpc.protection"; 327 /** Class to override Sasl Properties for a connection */ 328 public static final String HADOOP_SECURITY_SASL_PROPS_RESOLVER_CLASS = 329 "hadoop.security.saslproperties.resolver.class"; 330 public static final String HADOOP_SECURITY_CRYPTO_CODEC_CLASSES_KEY_PREFIX = 331 "hadoop.security.crypto.codec.classes"; 332 public static final String 333 HADOOP_SECURITY_CRYPTO_CODEC_CLASSES_AES_CTR_NOPADDING_KEY = 334 HADOOP_SECURITY_CRYPTO_CODEC_CLASSES_KEY_PREFIX 335 + CipherSuite.AES_CTR_NOPADDING.getConfigSuffix(); 336 public static final String 337 HADOOP_SECURITY_CRYPTO_CODEC_CLASSES_AES_CTR_NOPADDING_DEFAULT = 338 OpensslAesCtrCryptoCodec.class.getName() + "," + 339 JceAesCtrCryptoCodec.class.getName(); 340 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 341 public static final String HADOOP_SECURITY_CRYPTO_CIPHER_SUITE_KEY = 342 "hadoop.security.crypto.cipher.suite"; 343 public static final String HADOOP_SECURITY_CRYPTO_CIPHER_SUITE_DEFAULT = 344 "AES/CTR/NoPadding"; 345 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 346 public static final String HADOOP_SECURITY_CRYPTO_JCE_PROVIDER_KEY = 347 "hadoop.security.crypto.jce.provider"; 348 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 349 public static final String HADOOP_SECURITY_CRYPTO_BUFFER_SIZE_KEY = 350 "hadoop.security.crypto.buffer.size"; 351 /** Defalt value for HADOOP_SECURITY_CRYPTO_BUFFER_SIZE_KEY */ 352 public static final int HADOOP_SECURITY_CRYPTO_BUFFER_SIZE_DEFAULT = 8192; 353 /** Class to override Impersonation provider */ 354 public static final String HADOOP_SECURITY_IMPERSONATION_PROVIDER_CLASS = 355 "hadoop.security.impersonation.provider.class"; 356 357 // <!-- KMSClientProvider configurations --> 358 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 359 public static final String KMS_CLIENT_ENC_KEY_CACHE_SIZE = 360 "hadoop.security.kms.client.encrypted.key.cache.size"; 361 /** Default value for KMS_CLIENT_ENC_KEY_CACHE_SIZE */ 362 public static final int KMS_CLIENT_ENC_KEY_CACHE_SIZE_DEFAULT = 500; 363 364 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 365 public static final String KMS_CLIENT_ENC_KEY_CACHE_LOW_WATERMARK = 366 "hadoop.security.kms.client.encrypted.key.cache.low-watermark"; 367 /** Default value for KMS_CLIENT_ENC_KEY_CACHE_LOW_WATERMARK */ 368 public static final float KMS_CLIENT_ENC_KEY_CACHE_LOW_WATERMARK_DEFAULT = 369 0.3f; 370 371 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 372 public static final String KMS_CLIENT_ENC_KEY_CACHE_NUM_REFILL_THREADS = 373 "hadoop.security.kms.client.encrypted.key.cache.num.refill.threads"; 374 /** Default value for KMS_CLIENT_ENC_KEY_NUM_REFILL_THREADS */ 375 public static final int KMS_CLIENT_ENC_KEY_CACHE_NUM_REFILL_THREADS_DEFAULT = 376 2; 377 378 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 379 public static final String KMS_CLIENT_ENC_KEY_CACHE_EXPIRY_MS = 380 "hadoop.security.kms.client.encrypted.key.cache.expiry"; 381 /** Default value for KMS_CLIENT_ENC_KEY_CACHE_EXPIRY (12 hrs)*/ 382 public static final int KMS_CLIENT_ENC_KEY_CACHE_EXPIRY_DEFAULT = 43200000; 383 384 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 385 public static final String HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY = 386 "hadoop.security.java.secure.random.algorithm"; 387 /** Defalt value for HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_KEY */ 388 public static final String HADOOP_SECURITY_JAVA_SECURE_RANDOM_ALGORITHM_DEFAULT = 389 "SHA1PRNG"; 390 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 391 public static final String HADOOP_SECURITY_SECURE_RANDOM_IMPL_KEY = 392 "hadoop.security.secure.random.impl"; 393 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 394 public static final String HADOOP_SECURITY_SECURE_RANDOM_DEVICE_FILE_PATH_KEY = 395 "hadoop.security.random.device.file.path"; 396 public static final String HADOOP_SECURITY_SECURE_RANDOM_DEVICE_FILE_PATH_DEFAULT = 397 "/dev/urandom"; 398 399 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 400 public static final String HADOOP_SHELL_MISSING_DEFAULT_FS_WARNING_KEY = 401 "hadoop.shell.missing.defaultFs.warning"; 402 public static final boolean HADOOP_SHELL_MISSING_DEFAULT_FS_WARNING_DEFAULT = 403 false; 404 405 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 406 public static final String HADOOP_SHELL_SAFELY_DELETE_LIMIT_NUM_FILES = 407 "hadoop.shell.safely.delete.limit.num.files"; 408 public static final long HADOOP_SHELL_SAFELY_DELETE_LIMIT_NUM_FILES_DEFAULT = 409 100; 410 411 /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */ 412 public static final String HADOOP_HTTP_LOGS_ENABLED = 413 "hadoop.http.logs.enabled"; 414 /** Defalt value for HADOOP_HTTP_LOGS_ENABLED */ 415 public static final boolean HADOOP_HTTP_LOGS_ENABLED_DEFAULT = true; 416} 417