| /** |
| * 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.mapred.JobTracker; |
| import org.apache.hadoop.mapred.TaskTracker; |
| |
| /** |
| * Place holder for cluster level configuration keys. |
| * |
| * These keys are used by both {@link JobTracker} and {@link TaskTracker}. 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_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 |
| } |