/**
* 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.mapreduce;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceAudience.Public;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
/**
* Place holder for cluster level configuration keys.
*
* The keys should have "mapreduce.cluster." as the prefix.
*
*/
@InterfaceAudience.Private
public interface MRConfig {
// Cluster-level configuration parameters
public static final String TEMP_DIR = "mapreduce.cluster.temp.dir";
public static final String LOCAL_DIR = "mapreduce.cluster.local.dir";
public static final String MAPMEMORY_MB = "mapreduce.cluster.mapmemory.mb";
public static final String REDUCEMEMORY_MB =
"mapreduce.cluster.reducememory.mb";
public static final String MR_ACLS_ENABLED = "mapreduce.cluster.acls.enabled";
public static final String MR_ADMINS =
"mapreduce.cluster.administrators";
@Deprecated
public static final String MR_SUPERGROUP =
"mapreduce.cluster.permissions.supergroup";
//Delegation token related keys
public static final String DELEGATION_KEY_UPDATE_INTERVAL_KEY =
"mapreduce.cluster.delegation.key.update-interval";
public static final long DELEGATION_KEY_UPDATE_INTERVAL_DEFAULT =
24*60*60*1000; // 1 day
public static final String DELEGATION_TOKEN_RENEW_INTERVAL_KEY =
"mapreduce.cluster.delegation.token.renew-interval";
public static final long DELEGATION_TOKEN_RENEW_INTERVAL_DEFAULT =
24*60*60*1000; // 1 day
public static final String DELEGATION_TOKEN_MAX_LIFETIME_KEY =
"mapreduce.cluster.delegation.token.max-lifetime";
public static final long DELEGATION_TOKEN_MAX_LIFETIME_DEFAULT =
7*24*60*60*1000; // 7 days
public static final String RESOURCE_CALCULATOR_PROCESS_TREE =
"mapreduce.job.process-tree.class";
public static final String STATIC_RESOLUTIONS =
"mapreduce.job.net.static.resolutions";
public static final String MASTER_ADDRESS = "mapreduce.jobtracker.address";
public static final String MASTER_USER_NAME =
"mapreduce.jobtracker.kerberos.principal";
public static final String FRAMEWORK_NAME = "mapreduce.framework.name";
public static final String CLASSIC_FRAMEWORK_NAME = "classic";
public static final String YARN_FRAMEWORK_NAME = "yarn";
public static final String LOCAL_FRAMEWORK_NAME = "local";
public static final String TASK_LOCAL_OUTPUT_CLASS =
"mapreduce.task.local.output.class";
public static final String PROGRESS_STATUS_LEN_LIMIT_KEY =
"mapreduce.task.max.status.length";
public static final int PROGRESS_STATUS_LEN_LIMIT_DEFAULT = 512;
public static final int MAX_BLOCK_LOCATIONS_DEFAULT = 10;
public static final String MAX_BLOCK_LOCATIONS_KEY =
"mapreduce.job.max.split.locations";
public static final String SHUFFLE_SSL_ENABLED_KEY =
"mapreduce.shuffle.ssl.enabled";
public static final boolean SHUFFLE_SSL_ENABLED_DEFAULT = false;
public static final String SHUFFLE_CONSUMER_PLUGIN =
"mapreduce.job.reduce.shuffle.consumer.plugin.class";
/**
* Configuration key to enable/disable IFile readahead.
*/
public static final String MAPRED_IFILE_READAHEAD =
"mapreduce.ifile.readahead";
public static final boolean DEFAULT_MAPRED_IFILE_READAHEAD = true;
/**
* Configuration key to set the IFile readahead length in bytes.
*/
public static final String MAPRED_IFILE_READAHEAD_BYTES =
"mapreduce.ifile.readahead.bytes";
public static final int DEFAULT_MAPRED_IFILE_READAHEAD_BYTES =
4 * 1024 * 1024;
/**
* Whether users are explicitly trying to control resource monitoring
* configuration for the MiniMRCluster. Disabled by default.
*/
public static final String MAPREDUCE_MINICLUSTER_CONTROL_RESOURCE_MONITORING
= "mapreduce.minicluster.control-resource-monitoring";
public static final boolean
DEFAULT_MAPREDUCE_MINICLUSTER_CONTROL_RESOURCE_MONITORING = false;
@Public
@Unstable
public static final String MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM =
"mapreduce.app-submission.cross-platform";
@Public
@Unstable
public static final boolean DEFAULT_MAPREDUCE_APP_SUBMISSION_CROSS_PLATFORM =
false;
}