gaojun2048 commented on a change in pull request #1970: Add ambari plugin #1469 URL: https://github.com/apache/incubator-dolphinscheduler/pull/1970#discussion_r380421170
########## File path: ambari_plugin/common-services/DOLPHIN/1.2.1/package/alerts/alert_dolphin_scheduler_status.py ########## @@ -0,0 +1,138 @@ +# coding=utf8 +#!/usr/bin/env python + +""" +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. +""" +import urllib2 +import urllib +import os +import logging +import ambari_simplejson as json +import time +from resource_management.libraries.script.script import Script +import telnetlib +import sys +reload(sys) +sys.setdefaultencoding('utf-8') + +logger = logging.getLogger('ambari_alerts') + +config = Script.get_config() + + +def get_tokens(): + """ + Returns a tuple of tokens in the format {{site/property}} that will be used + to build the dictionary passed into execute + + :rtype tuple + """ + +def get_info(url, connection_timeout): + response = None + + try: + response = urllib2.urlopen(url, timeout=connection_timeout) + json_data = response.read() + return json_data + finally: + if response is not None: + try: + response.close() + except: + pass + + +def execute(configurations={}, parameters={}, host_name=None): + """ + Returns a tuple containing the result code and a pre-formatted result label + + Keyword arguments: + configurations : a mapping of configuration key to value + parameters : a mapping of script parameter key to value + host_name : the name of this host where the alert is running + + :type configurations dict + :type parameters dict + :type host_name str + """ + + alert_name = parameters['alertName'] + + dolphin_pidfile_dir = "/opt/soft/run/dolphinscheduler" + + pid = "0" + + + from resource_management.core import sudo + + is_running = True + pid_file_path = "" + if alert_name == 'DOLPHIN_MASTER': + pid_file_path = dolphin_pidfile_dir + "/master-server.pid" + elif alert_name == 'DOLPHIN_WORKER': + pid_file_path = dolphin_pidfile_dir + "/worker-server.pid" + elif alert_name == 'DOLPHIN_ALERT': + pid_file_path = dolphin_pidfile_dir + "/alert-server.pid" + + if not pid_file_path or not os.path.isfile(pid_file_path): + is_running = False + + try: + pid = int(sudo.read_file(pid_file_path)) + except: + is_running = False + + try: + # Kill will not actually kill the process + # From the doc: + # If sig is 0, then no signal is sent, but error checking is still + # performed; this can be used to check for the existence of a + # process ID or process group ID. + sudo.kill(pid, 0) + except OSError: + is_running = False + + if not is_running: + result_code = "CRITICAL" + label_content = { + "serviceName": "DOLPHIN_SCHEDULER", + "show_type": "text", + "alert_message": [ Review comment: Native ambari can't recognize such alarm json, so you need to modify the alarm information a bit easier ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
