| /** |
| * 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.yarn.api; |
| |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| /** |
| * This is the API for the applications comprising of constants that YARN sets |
| * up for the applications and the containers. |
| * |
| * TODO: Should also be defined in avro/pb IDLs |
| * TODO: Investigate the semantics and security of each cross-boundary refs. |
| */ |
| public interface ApplicationConstants { |
| |
| // TODO: They say tokens via env isn't good. |
| public static final String APPLICATION_MASTER_TOKEN_ENV_NAME = |
| "AppMasterTokenEnv"; |
| |
| // TODO: They say tokens via env isn't good. |
| public static final String APPLICATION_CLIENT_SECRET_ENV_NAME = |
| "AppClientTokenEnv"; |
| |
| // TODO: Weird. This is part of AM command line. Instead it should be a env. |
| public static final String AM_FAIL_COUNT_STRING = "<FAILCOUNT>"; |
| |
| public static final String CONTAINER_TOKEN_FILE_ENV_NAME = |
| UserGroupInformation.HADOOP_TOKEN_FILE_LOCATION; |
| |
| public static final String LOCAL_DIR_ENV = "YARN_LOCAL_DIRS"; |
| |
| public static final String LOG_DIR_EXPANSION_VAR = "<LOG_DIR>"; |
| } |
