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+/**
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+ * Licensed to the Apache Software Foundation (ASF) under one
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+ * or more contributor license agreements. See the NOTICE file
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+ * distributed with this work for additional information
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+ * regarding copyright ownership. The ASF licenses this file
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+ * to you under the Apache License, Version 2.0 (the
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+ * "License"); you may not use this file except in compliance
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+ * with the License. You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+
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+package org.apache.hadoop.fs;
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+
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+import org.apache.hadoop.classification.InterfaceAudience;
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+
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+/**
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+ * This class contains constants for configuration keys used
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+ * in the common code.
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+ *
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+ * It includes all publicly documented configuration keys. In general
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+ * this class should not be used directly (use CommonConfigurationKeys
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+ * instead)
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+ *
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+ */
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+
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+@InterfaceAudience.Public
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+public class CommonConfigurationKeysPublic {
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+
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+ // The Keys
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_NATIVE_LIB_AVAILABLE_KEY =
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+ "io.native.lib.available";
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+ /** Default value for IO_NATIVE_LIB_AVAILABLE_KEY */
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+ public static final boolean IO_NATIVE_LIB_AVAILABLE_DEFAULT = true;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_KEY =
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+ "net.topology.script.number.args";
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+ /** Default value for NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_KEY */
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+ public static final int NET_TOPOLOGY_SCRIPT_NUMBER_ARGS_DEFAULT = 100;
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+
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+ //FS keys
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_DEFAULT_NAME_KEY = "fs.defaultFS";
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+ /** Default value for FS_DEFAULT_NAME_KEY */
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+ public static final String FS_DEFAULT_NAME_DEFAULT = "file:///";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_DF_INTERVAL_KEY = "fs.df.interval";
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+ /** Default value for FS_DF_INTERVAL_KEY */
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+ public static final long FS_DF_INTERVAL_DEFAULT = 60000;
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+
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+
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+ //Defaults are not specified for following keys
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String NET_TOPOLOGY_SCRIPT_FILE_NAME_KEY =
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+ "net.topology.script.file.name";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY =
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+ "net.topology.node.switch.mapping.impl";
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+
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_TRASH_CHECKPOINT_INTERVAL_KEY =
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+ "fs.trash.checkpoint.interval";
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+ /** Default value for FS_TRASH_CHECKPOINT_INTERVAL_KEY */
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+ public static final long FS_TRASH_CHECKPOINT_INTERVAL_DEFAULT = 0;
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+
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+ // TBD: Code is still using hardcoded values (e.g. "fs.automatic.close")
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+ // instead of constant (e.g. FS_AUTOMATIC_CLOSE_KEY)
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+ //
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+ /** Not used anywhere, looks like default value for FS_LOCAL_BLOCK_SIZE */
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+ public static final long FS_LOCAL_BLOCK_SIZE_DEFAULT = 32*1024*1024;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_AUTOMATIC_CLOSE_KEY = "fs.automatic.close";
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+ /** Default value for FS_AUTOMATIC_CLOSE_KEY */
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+ public static final boolean FS_AUTOMATIC_CLOSE_DEFAULT = true;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_FILE_IMPL_KEY = "fs.file.impl";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_FTP_HOST_KEY = "fs.ftp.host";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_FTP_HOST_PORT_KEY = "fs.ftp.host.port";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String FS_TRASH_INTERVAL_KEY = "fs.trash.interval";
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+ /** Default value for FS_TRASH_INTERVAL_KEY */
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+ public static final long FS_TRASH_INTERVAL_DEFAULT = 0;
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+
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_MAPFILE_BLOOM_SIZE_KEY =
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+ "io.mapfile.bloom.size";
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+ /** Default value for IO_MAPFILE_BLOOM_SIZE_KEY */
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+ public static final int IO_MAPFILE_BLOOM_SIZE_DEFAULT = 1024*1024;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_MAPFILE_BLOOM_ERROR_RATE_KEY =
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+ "io.mapfile.bloom.error.rate" ;
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+ /** Default value for IO_MAPFILE_BLOOM_ERROR_RATE_KEY */
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+ public static final float IO_MAPFILE_BLOOM_ERROR_RATE_DEFAULT = 0.005f;
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+ /** Codec class that implements Lzo compression algorithm */
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+ public static final String IO_COMPRESSION_CODEC_LZO_CLASS_KEY =
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+ "io.compression.codec.lzo.class";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_MAP_INDEX_INTERVAL_KEY =
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+ "io.map.index.interval";
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+ /** Default value for IO_MAP_INDEX_INTERVAL_DEFAULT */
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+ public static final int IO_MAP_INDEX_INTERVAL_DEFAULT = 128;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_MAP_INDEX_SKIP_KEY = "io.map.index.skip";
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+ /** Default value for IO_MAP_INDEX_SKIP_KEY */
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+ public static final int IO_MAP_INDEX_SKIP_DEFAULT = 0;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_SEQFILE_COMPRESS_BLOCKSIZE_KEY =
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+ "io.seqfile.compress.blocksize";
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+ /** Default value for IO_SEQFILE_COMPRESS_BLOCKSIZE_KEY */
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+ public static final int IO_SEQFILE_COMPRESS_BLOCKSIZE_DEFAULT = 1000000;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_SKIP_CHECKSUM_ERRORS_KEY =
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+ "io.skip.checksum.errors";
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+ /** Default value for IO_SKIP_CHECKSUM_ERRORS_KEY */
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+ public static final boolean IO_SKIP_CHECKSUM_ERRORS_DEFAULT = false;
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+ /**
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+ * @deprecated Moved to mapreduce, see mapreduce.task.io.sort.mb
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+ * in mapred-default.xml
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+ * See https://issues.apache.org/jira/browse/HADOOP-6801
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+ */
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+ public static final String IO_SORT_MB_KEY = "io.sort.mb";
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+ /** Default value for IO_SORT_MB_DEFAULT */
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+ public static final int IO_SORT_MB_DEFAULT = 100;
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+ /**
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+ * @deprecated Moved to mapreduce, see mapreduce.task.io.sort.factor
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+ * in mapred-default.xml
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+ * See https://issues.apache.org/jira/browse/HADOOP-6801
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+ */
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+ public static final String IO_SORT_FACTOR_KEY = "io.sort.factor";
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+ /** Default value for IO_SORT_FACTOR_DEFAULT */
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+ public static final int IO_SORT_FACTOR_DEFAULT = 100;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IO_SERIALIZATIONS_KEY = "io.serializations";
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+
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String TFILE_IO_CHUNK_SIZE_KEY = "tfile.io.chunk.size";
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+ /** Default value for TFILE_IO_CHUNK_SIZE_DEFAULT */
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+ public static final int TFILE_IO_CHUNK_SIZE_DEFAULT = 1024*1024;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String TFILE_FS_INPUT_BUFFER_SIZE_KEY =
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+ "tfile.fs.input.buffer.size";
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+ /** Default value for TFILE_FS_INPUT_BUFFER_SIZE_KEY */
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+ public static final int TFILE_FS_INPUT_BUFFER_SIZE_DEFAULT = 256*1024;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String TFILE_FS_OUTPUT_BUFFER_SIZE_KEY =
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+ "tfile.fs.output.buffer.size";
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+ /** Default value for TFILE_FS_OUTPUT_BUFFER_SIZE_KEY */
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+ public static final int TFILE_FS_OUTPUT_BUFFER_SIZE_DEFAULT = 256*1024;
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+
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY =
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+ "ipc.client.connection.maxidletime";
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+ /** Default value for IPC_CLIENT_CONNECTION_MAXIDLETIME_KEY */
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+ public static final int IPC_CLIENT_CONNECTION_MAXIDLETIME_DEFAULT = 10000;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_CLIENT_CONNECT_MAX_RETRIES_KEY =
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+ "ipc.client.connect.max.retries";
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+ /** Default value for IPC_CLIENT_CONNECT_MAX_RETRIES_KEY */
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+ public static final int IPC_CLIENT_CONNECT_MAX_RETRIES_DEFAULT = 10;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_CLIENT_TCPNODELAY_KEY =
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+ "ipc.client.tcpnodelay";
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+ /** Defalt value for IPC_CLIENT_TCPNODELAY_KEY */
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+ public static final boolean IPC_CLIENT_TCPNODELAY_DEFAULT = false;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_SERVER_LISTEN_QUEUE_SIZE_KEY =
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+ "ipc.server.listen.queue.size";
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+ /** Default value for IPC_SERVER_LISTEN_QUEUE_SIZE_KEY */
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+ public static final int IPC_SERVER_LISTEN_QUEUE_SIZE_DEFAULT = 128;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_CLIENT_KILL_MAX_KEY = "ipc.client.kill.max";
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+ /** Default value for IPC_CLIENT_KILL_MAX_KEY */
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+ public static final int IPC_CLIENT_KILL_MAX_DEFAULT = 10;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_CLIENT_IDLETHRESHOLD_KEY =
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+ "ipc.client.idlethreshold";
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+ /** Default value for IPC_CLIENT_IDLETHRESHOLD_DEFAULT */
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+ public static final int IPC_CLIENT_IDLETHRESHOLD_DEFAULT = 4000;
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String IPC_SERVER_TCPNODELAY_KEY =
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+ "ipc.server.tcpnodelay";
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+ /** Default value for IPC_SERVER_TCPNODELAY_KEY */
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+ public static final boolean IPC_SERVER_TCPNODELAY_DEFAULT = false;
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+
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_KEY =
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+ "hadoop.rpc.socket.factory.class.default";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SOCKS_SERVER_KEY = "hadoop.socks.server";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_UTIL_HASH_TYPE_KEY =
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+ "hadoop.util.hash.type";
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+ /** Default value for HADOOP_UTIL_HASH_TYPE_KEY */
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+ public static final String HADOOP_UTIL_HASH_TYPE_DEFAULT = "murmur";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SECURITY_GROUP_MAPPING =
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+ "hadoop.security.group.mapping";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SECURITY_GROUPS_CACHE_SECS =
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+ "hadoop.security.groups.cache.secs";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SECURITY_AUTHENTICATION =
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+ "hadoop.security.authentication";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SECURITY_AUTHORIZATION =
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+ "hadoop.security.authorization";
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+ /** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
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+ public static final String HADOOP_SECURITY_SERVICE_USER_NAME_KEY =
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+ "hadoop.security.service.user.name.key";
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+}
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+
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Konstantin Shvachko