| /** |
| * 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.hdfs; |
| |
| import org.apache.hadoop.conf.Configuration; |
| |
| import org.apache.hadoop.classification.InterfaceAudience; |
| |
| /** |
| * Adds deprecated keys into the configuration. |
| */ |
| @InterfaceAudience.Private |
| public class HdfsConfiguration extends Configuration { |
| static { |
| addDeprecatedKeys(); |
| |
| // adds the default resources |
| Configuration.addDefaultResource("hdfs-default.xml"); |
| Configuration.addDefaultResource("hdfs-site.xml"); |
| |
| } |
| |
| public HdfsConfiguration() { |
| super(); |
| } |
| |
| public HdfsConfiguration(boolean loadDefaults) { |
| super(loadDefaults); |
| } |
| |
| public HdfsConfiguration(Configuration conf) { |
| super(conf); |
| } |
| |
| /** |
| * This method is here so that when invoked, HdfsConfiguration is class-loaded if |
| * it hasn't already been previously loaded. Upon loading the class, the static |
| * initializer block above will be executed to add the deprecated keys and to add |
| * the default resources. It is safe for this method to be called multiple times |
| * as the static initializer block will only get invoked once. |
| * |
| * This replaces the previously, dangerous practice of other classes calling |
| * Configuration.addDefaultResource("hdfs-default.xml") directly without loading |
| * HdfsConfiguration class first, thereby skipping the key deprecation |
| */ |
| public static void init() { |
| } |
| |
| private static void deprecate(String oldKey, String newKey) { |
| Configuration.addDeprecation(oldKey, new String[]{newKey}); |
| } |
| |
| private static void addDeprecatedKeys() { |
| deprecate("dfs.backup.address", DFSConfigKeys.DFS_NAMENODE_BACKUP_ADDRESS_KEY); |
| deprecate("dfs.backup.http.address", DFSConfigKeys.DFS_NAMENODE_BACKUP_HTTP_ADDRESS_KEY); |
| deprecate("dfs.balance.bandwidthPerSec", DFSConfigKeys.DFS_DATANODE_BALANCE_BANDWIDTHPERSEC_KEY); |
| deprecate("dfs.data.dir", DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY); |
| deprecate("dfs.http.address", DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY); |
| deprecate("dfs.https.address", DFSConfigKeys.DFS_NAMENODE_HTTPS_ADDRESS_KEY); |
| deprecate("dfs.max.objects", DFSConfigKeys.DFS_NAMENODE_MAX_OBJECTS_KEY); |
| deprecate("dfs.name.dir", DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY); |
| deprecate("dfs.name.dir.restore", DFSConfigKeys.DFS_NAMENODE_NAME_DIR_RESTORE_KEY); |
| deprecate("dfs.name.edits.dir", DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY); |
| deprecate("dfs.read.prefetch.size", DFSConfigKeys.DFS_CLIENT_READ_PREFETCH_SIZE_KEY); |
| deprecate("dfs.safemode.extension", DFSConfigKeys.DFS_NAMENODE_SAFEMODE_EXTENSION_KEY); |
| deprecate("dfs.safemode.threshold.pct", DFSConfigKeys.DFS_NAMENODE_SAFEMODE_THRESHOLD_PCT_KEY); |
| deprecate("dfs.secondary.http.address", DFSConfigKeys.DFS_NAMENODE_SECONDARY_HTTP_ADDRESS_KEY); |
| deprecate("dfs.socket.timeout", DFSConfigKeys.DFS_CLIENT_SOCKET_TIMEOUT_KEY); |
| deprecate("fs.checkpoint.dir", DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_DIR_KEY); |
| deprecate("fs.checkpoint.edits.dir", DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_EDITS_DIR_KEY); |
| deprecate("fs.checkpoint.period", DFSConfigKeys.DFS_NAMENODE_CHECKPOINT_PERIOD_KEY); |
| deprecate("dfs.upgrade.permission", DFSConfigKeys.DFS_NAMENODE_UPGRADE_PERMISSION_KEY); |
| deprecate("heartbeat.recheck.interval", DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY); |
| deprecate("StorageId", DFSConfigKeys.DFS_DATANODE_STORAGEID_KEY); |
| deprecate("dfs.https.client.keystore.resource", DFSConfigKeys.DFS_CLIENT_HTTPS_KEYSTORE_RESOURCE_KEY); |
| deprecate("dfs.https.need.client.auth", DFSConfigKeys.DFS_CLIENT_HTTPS_NEED_AUTH_KEY); |
| deprecate("slave.host.name", DFSConfigKeys.DFS_DATANODE_HOST_NAME_KEY); |
| deprecate("session.id", DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY); |
| deprecate("dfs.access.time.precision", DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY); |
| deprecate("dfs.replication.considerLoad", DFSConfigKeys.DFS_NAMENODE_REPLICATION_CONSIDERLOAD_KEY); |
| deprecate("dfs.replication.interval", DFSConfigKeys.DFS_NAMENODE_REPLICATION_INTERVAL_KEY); |
| deprecate("dfs.replication.min", DFSConfigKeys.DFS_NAMENODE_REPLICATION_MIN_KEY); |
| deprecate("dfs.replication.pending.timeout.sec", DFSConfigKeys.DFS_NAMENODE_REPLICATION_PENDING_TIMEOUT_SEC_KEY); |
| deprecate("dfs.max-repl-streams", DFSConfigKeys.DFS_NAMENODE_REPLICATION_MAX_STREAMS_KEY); |
| deprecate("dfs.permissions", DFSConfigKeys.DFS_PERMISSIONS_ENABLED_KEY); |
| deprecate("dfs.permissions.supergroup", DFSConfigKeys.DFS_PERMISSIONS_SUPERUSERGROUP_KEY); |
| deprecate("dfs.write.packet.size", DFSConfigKeys.DFS_CLIENT_WRITE_PACKET_SIZE_KEY); |
| deprecate("dfs.block.size", DFSConfigKeys.DFS_BLOCK_SIZE_KEY); |
| deprecate("dfs.datanode.max.xcievers", DFSConfigKeys.DFS_DATANODE_MAX_RECEIVER_THREADS_KEY); |
| deprecate("io.bytes.per.checksum", DFSConfigKeys.DFS_BYTES_PER_CHECKSUM_KEY); |
| } |
| } |