# -*- coding: utf-8 -*- # Description: rabbitmq netdata python.d module # Author: ilyam8 # SPDX-License-Identifier: GPL-3.0-or-later from json import loads from bases.FrameworkServices.UrlService import UrlService API_NODE = 'api/nodes' API_OVERVIEW = 'api/overview' API_VHOSTS = 'api/vhosts' NODE_STATS = [ 'fd_used', 'mem_used', 'sockets_used', 'proc_used', 'disk_free', 'run_queue' ] OVERVIEW_STATS = [ 'object_totals.channels', 'object_totals.consumers', 'object_totals.connections', 'object_totals.queues', 'object_totals.exchanges', 'queue_totals.messages_ready', 'queue_totals.messages_unacknowledged', 'message_stats.ack', 'message_stats.redeliver', 'message_stats.deliver', 'message_stats.publish' ] VHOST_MESSAGE_STATS = [ 'message_stats.ack', 'message_stats.confirm', 'message_stats.deliver', 'message_stats.get', 'message_stats.get_no_ack', 'message_stats.publish', 'message_stats.redeliver', 'message_stats.return_unroutable', ] ORDER = [ 'queued_messages', 'message_rates', 'global_counts', 'file_descriptors', 'socket_descriptors', 'erlang_processes', 'erlang_run_queue', 'memory', 'disk_space' ] CHARTS = { 'file_descriptors': { 'options': [None, 'File Descriptors', 'descriptors', 'overview', 'rabbitmq.file_descriptors', 'line'], 'lines': [ ['fd_used', 'used', 'absolute'] ] }, 'memory': { 'options': [None, 'Memory', 'MiB', 'overview', 'rabbitmq.memory', 'area'], 'lines': [ ['mem_used', 'used', 'absolute', 1, 1 << 20] ] }, 'disk_space': { 'options': [None, 'Disk Space', 'GiB', 'overview', 'rabbitmq.disk_space', 'area'], 'lines': [ ['disk_free', 'free', 'absolute', 1, 1 << 30] ] }, 'socket_descriptors': { 'options': [None, 'Socket Descriptors', 'descriptors', 'overview', 'rabbitmq.sockets', 'line'], 'lines': [ ['sockets_used', 'used', 'absolute'] ] }, 'erlang_processes': { 'options': [None, 'Erlang Processes', 'processes', 'overview', 'rabbitmq.processes', 'line'], 'lines': [ ['proc_used', 'used', 'absolute'] ] }, 'erlang_run_queue': { 'options': [None, 'Erlang Run Queue', 'processes', 'overview', 'rabbitmq.erlang_run_queue', 'line'], 'lines': [ ['run_queue', 'length', 'absolute'] ] }, 'global_counts': { 'options': [None, 'Global Counts', 'counts', 'overview', 'rabbitmq.global_counts', 'line'], 'lines': [ ['object_totals_channels', 'channels', 'absolute'], ['object_totals_consumers', 'consumers', 'absolute'], ['object_totals_connections', 'connections', 'absolute'], ['object_totals_queues', 'queues', 'absolute'], ['object_totals_exchanges', 'exchanges', 'absolute'] ] }, 'queued_messages': { 'options': [None, 'Queued Messages', 'messages', 'overview', 'rabbitmq.queued_messages', 'stacked'], 'lines': [ ['queue_totals_messages_ready', 'ready', 'absolute'], ['queue_totals_messages_unacknowledged', 'unacknowledged', 'absolute'] ] }, 'message_rates': { 'options': [None, 'Message Rates', 'messages/s', 'overview', 'rabbitmq.message_rates', 'line'], 'lines': [ ['message_stats_ack', 'ack', 'incremental'], ['message_stats_redeliver', 'redeliver', 'incremental'], ['message_stats_deliver', 'deliver', 'incremental'], ['message_stats_publish', 'publish', 'incremental'] ] } } def vhost_chart_template(name): order = [ 'vhost_{0}_message_stats'.format(name), ] family = 'vhost {0}'.format(name) charts = { order[0]: { 'options': [ None, 'Vhost "{0}" Messages'.format(name), 'messages/s', family, 'rabbitmq.vhost_messages', 'stacked'], 'lines': [ ['vhost_{0}_message_stats_ack'.format(name), 'ack', 'incremental'], ['vhost_{0}_message_stats_confirm'.format(name), 'confirm', 'incremental'], ['vhost_{0}_message_stats_deliver'.format(name), 'deliver', 'incremental'], ['vhost_{0}_message_stats_get'.format(name), 'get', 'incremental'], ['vhost_{0}_message_stats_get_no_ack'.format(name), 'get_no_ack', 'incremental'], ['vhost_{0}_message_stats_publish'.format(name), 'publish', 'incremental'], ['vhost_{0}_message_stats_redeliver'.format(name), 'redeliver', 'incremental'], ['vhost_{0}_message_stats_return_unroutable'.format(name), 'return_unroutable', 'incremental'], ] }, } return order, charts class VhostStatsBuilder: def __init__(self): self.stats = None def set(self, raw_stats): self.stats = raw_stats def name(self): return self.stats['name'] def has_msg_stats(self): return bool(self.stats.get('message_stats')) def msg_stats(self): name = self.name() stats = fetch_data(raw_data=self.stats, metrics=VHOST_MESSAGE_STATS) return dict(('vhost_{0}_{1}'.format(name, k), v) for k, v in stats.items()) class Service(UrlService): def __init__(self, configuration=None, name=None): UrlService.__init__(self, configuration=configuration, name=name) self.order = ORDER self.definitions = CHARTS self.url = '{0}://{1}:{2}'.format( configuration.get('scheme', 'http'), configuration.get('host', '127.0.0.1'), configuration.get('port', 15672), ) self.node_name = str() self.vhost = VhostStatsBuilder() self.collected_vhosts = set() def _get_data(self): data = dict() stats = self.get_overview_stats() if not stats: return None data.update(stats) stats = self.get_nodes_stats() if not stats: return None data.update(stats) stats = self.get_vhosts_stats() if stats: data.update(stats) return data or None def get_overview_stats(self): url = '{0}/{1}'.format(self.url, API_OVERVIEW) self.debug("doing http request to '{0}'".format(url)) raw = self._get_raw_data(url) if not raw: return None data = loads(raw) self.node_name = data['node'] self.debug("found node name: '{0}'".format(self.node_name)) stats = fetch_data(raw_data=data, metrics=OVERVIEW_STATS) self.debug("number of metrics: {0}".format(len(stats))) return stats def get_nodes_stats(self): if self.node_name == "": self.error("trying to get node stats, but node name is not set") return None url = '{0}/{1}/{2}'.format(self.url, API_NODE, self.node_name) self.debug("doing http request to '{0}'".format(url)) raw = self._get_raw_data(url) if not raw: return None data = loads(raw) stats = fetch_data(raw_data=data, metrics=NODE_STATS) handle_disabled_disk_monitoring(stats) self.debug("number of metrics: {0}".format(len(stats))) return stats def get_vhosts_stats(self): url = '{0}/{1}'.format(self.url, API_VHOSTS) self.debug("doing http request to '{0}'".format(url)) raw = self._get_raw_data(url) if not raw: return None data = dict() vhosts = loads(raw) charts_initialized = len(self.charts) > 0 for vhost in vhosts: self.vhost.set(vhost) if not self.vhost.has_msg_stats(): continue if charts_initialized and self.vhost.name() not in self.collected_vhosts: self.collected_vhosts.add(self.vhost.name()) self.add_vhost_charts(self.vhost.name()) data.update(self.vhost.msg_stats()) self.debug("number of vhosts: {0}, metrics: {1}".format(len(vhosts), len(data))) return data def add_vhost_charts(self, vhost_name): order, charts = vhost_chart_template(vhost_name) for chart_name in order: params = [chart_name] + charts[chart_name]['options'] dimensions = charts[chart_name]['lines'] new_chart = self.charts.add_chart(params) for dimension in dimensions: new_chart.add_dimension(dimension) def fetch_data(raw_data, metrics): data = dict() for metric in metrics: value = raw_data metrics_list = metric.split('.') try: for m in metrics_list: value = value[m] except (KeyError, TypeError): continue data['_'.join(metrics_list)] = value return data def handle_disabled_disk_monitoring(node_stats): # https://github.com/netdata/netdata/issues/7218 # can be "disk_free": "disk_free_monitoring_disabled" v = node_stats.get('disk_free') if v and isinstance(v, str): del node_stats['disk_free']