Best Python code snippet using autotest_python
druid_node.py
Source: druid_node.py
...44 import params45 env.set_params(params)46 install_druid()47 self.configure(env, upgrade_type=upgrade_type)48 daemon_cmd = get_daemon_cmd(params, self.nodeType, "start")49 # Verify Database connection on Druid start50 if params.metadata_storage_type == 'mysql':51 if not params.jdbc_driver_jar or not os.path.isfile(52 params.connector_download_dir + os.path.sep +53 params.jdbc_driver_jar):54 path_to_jdbc = params.connector_download_dir + os.path.sep + "*"55 error_message = "Error! Sorry, but we can't find jdbc driver for mysql.So, db connection check can fail." + \56 "Please run 'ambari-server setup --jdbc-db=mysql --jdbc-driver={path_to_jdbc} on server host.'"57 Logger.error(error_message)58 else:59 path_to_jdbc = params.connector_download_dir + os.path.sep + params.jdbc_driver_jar60 db_connection_check_command = format(61 "{params.java8_home}/bin/java -cp {params.check_db_connection_jar}:{path_to_jdbc} org.apache.ambari.server.DBConnectionVerification '{params.metadata_storage_url}' {params.metadata_storage_user} {params.metadata_storage_password!p} com.mysql.jdbc.Driver"62 )63 else:64 db_connection_check_command = None65 if db_connection_check_command:66 sudo.chmod(params.check_db_connection_jar, 0755)67 Execute(68 db_connection_check_command,69 tries=5,70 try_sleep=10,71 user=params.druid_user)72 pid_file = getPid(params, self.nodeType)73 process_id_exists_command = as_sudo([74 "test", "-f", pid_file75 ]) + " && " + as_sudo(["pgrep", "-F", pid_file])76 try:77 Execute(78 daemon_cmd,79 user=params.druid_user,80 not_if=process_id_exists_command,81 )82 except:83 show_logs(params.druid_log_dir, params.druid_user)84 raise85 def stop(self, env, upgrade_type=None):86 import params87 env.set_params(params)88 pid_file = getPid(params, self.nodeType)89 process_id_exists_command = as_sudo([90 "test", "-f", pid_file91 ]) + " && " + as_sudo(["pgrep", "-F", pid_file])92 daemon_cmd = get_daemon_cmd(params, self.nodeType, "stop")93 try:94 Execute(95 daemon_cmd,96 user=params.druid_user,97 only_if=process_id_exists_command,98 )99 except:100 show_logs(params.druid_log_dir, params.druid_user)101 raise102 def get_pid_files(self):103 import status_params104 return [getPid(status_params, self.nodeType)]105 def status(self, env):106 import status_params...
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