| """ |
| 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. |
| |
| Ambari Agent |
| |
| """ |
| from resource_management.libraries.script.script import Script |
| from resource_management.libraries.functions import stack_select |
| from resource_management.libraries.functions.constants import StackFeature |
| from resource_management.libraries.functions.check_process_status import check_process_status |
| from resource_management.libraries.functions.stack_features import check_stack_feature |
| from resource_management.libraries.functions.security_commons import build_expectations, \ |
| cached_kinit_executor, get_params_from_filesystem, validate_security_config_properties, \ |
| FILE_TYPE_XML |
| from resource_management.core.logger import Logger |
| from webhcat import webhcat |
| from webhcat_service import webhcat_service |
| from ambari_commons import OSConst |
| from ambari_commons.os_family_impl import OsFamilyImpl |
| |
| |
| class WebHCatServer(Script): |
| def install(self, env): |
| import params |
| self.install_packages(env) |
| |
| def start(self, env, upgrade_type=None): |
| import params |
| env.set_params(params) |
| self.configure(env) # FOR SECURITY |
| webhcat_service(action='start', upgrade_type=upgrade_type) |
| |
| def stop(self, env, upgrade_type=None): |
| import params |
| env.set_params(params) |
| webhcat_service(action='stop') |
| |
| def configure(self, env): |
| import params |
| env.set_params(params) |
| webhcat() |
| |
| |
| def status(self, env): |
| import status_params |
| env.set_params(status_params) |
| check_process_status(status_params.webhcat_pid_file) |
| |
| def pre_upgrade_restart(self, env, upgrade_type=None): |
| Logger.info("Executing WebHCat Stack Upgrade pre-restart") |
| import params |
| env.set_params(params) |
| |
| if params.version and check_stack_feature(StackFeature.ROLLING_UPGRADE, params.version): |
| stack_select.select_packages(params.version) |
| |
| def get_log_folder(self): |
| import params |
| return params.hcat_log_dir |
| |
| def get_user(self): |
| import params |
| return params.webhcat_user |
| |
| def get_pid_files(self): |
| import status_params |
| return [status_params.webhcat_pid_file] |
| |
| if __name__ == "__main__": |
| WebHCatServer().execute() |