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Diffstat (limited to 'python.d/rabbitmq.chart.py')
| -rw-r--r-- | python.d/rabbitmq.chart.py | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/python.d/rabbitmq.chart.py b/python.d/rabbitmq.chart.py new file mode 100644 index 00000000..15a6a80f --- /dev/null +++ b/python.d/rabbitmq.chart.py @@ -0,0 +1,187 @@ +# -*- coding: utf-8 -*- +# Description: rabbitmq netdata python.d module +# Author: l2isbad + +from base import UrlService +from socket import gethostbyname, gaierror +try: + from queue import Queue +except ImportError: + from Queue import Queue +from threading import Thread +from collections import namedtuple +from json import loads + +# default module values (can be overridden per job in `config`) +update_every = 1 +priority = 60000 +retries = 60 + +METHODS = namedtuple('METHODS', ['get_data_function', 'url', 'stats']) + +NODE_STATS = [('fd_used', None), + ('mem_used', None), + ('sockets_used', None), + ('proc_used', None), + ('disk_free', None) + ] +OVERVIEW_STATS = [('object_totals.channels', None), + ('object_totals.consumers', None), + ('object_totals.connections', None), + ('object_totals.queues', None), + ('object_totals.exchanges', None), + ('queue_totals.messages_ready', None), + ('queue_totals.messages_unacknowledged', None), + ('message_stats.ack', None), + ('message_stats.redeliver', None), + ('message_stats.deliver', None), + ('message_stats.publish', None) + ] +ORDER = ['queued_messages', 'message_rates', 'global_counts', + 'file_descriptors', 'socket_descriptors', 'erlang_processes', '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', 'MB', 'overview', + 'rabbitmq.memory', 'line'], + 'lines': [ + ['mem_used', 'used', 'absolute', 1, 1024 << 10] + ]}, + 'disk_space': { + 'options': [None, 'Disk Space', 'GB', 'overview', + 'rabbitmq.disk_space', 'line'], + 'lines': [ + ['disk_free', 'free', 'absolute', 1, 1024 ** 3] + ]}, + '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'] + ]}, + 'global_counts': { + 'options': [None, 'Global Counts', 'counts', 'overview', + 'rabbitmq.global_counts', 'line'], + 'lines': [ + ['channels', None, 'absolute'], + ['consumers', None, 'absolute'], + ['connections', None, 'absolute'], + ['queues', None, 'absolute'], + ['exchanges', None, 'absolute'] + ]}, + 'queued_messages': { + 'options': [None, 'Queued Messages', 'messages', 'overview', + 'rabbitmq.queued_messages', 'stacked'], + 'lines': [ + ['messages_ready', 'ready', 'absolute'], + ['messages_unacknowledged', 'unacknowledged', 'absolute'] + ]}, + 'message_rates': { + 'options': [None, 'Message Rates', 'messages/s', 'overview', + 'rabbitmq.message_rates', 'stacked'], + 'lines': [ + ['ack', None, 'incremental'], + ['redeliver', None, 'incremental'], + ['deliver', None, 'incremental'], + ['publish', None, 'incremental'] + ]} +} + + +class Service(UrlService): + def __init__(self, configuration=None, name=None): + UrlService.__init__(self, configuration=configuration, name=name) + self.order = ORDER + self.definitions = CHARTS + self.host = self.configuration.get('host', '127.0.0.1') + self.port = self.configuration.get('port', 15672) + self.scheme = self.configuration.get('scheme', 'http') + + def check(self): + # We can't start if <host> AND <port> not specified + if not (self.host and self.port): + self.error('Host is not defined in the module configuration file') + return False + + # Hostname -> ip address + try: + self.host = gethostbyname(self.host) + except gaierror as error: + self.error(str(error)) + return False + + # Add handlers (auth, self signed cert accept) + url = '%s://%s:%s/api' % (self.scheme, self.host, self.port) + self.opener = self._build_opener(url=url) + if not self.opener: + return False + # Add methods + api_node = url + '/nodes' + api_overview = url + '/overview' + self.methods = [METHODS(get_data_function=self._get_overview_stats, url=api_node, stats=NODE_STATS), + METHODS(get_data_function=self._get_overview_stats, url=api_overview, stats=OVERVIEW_STATS)] + + result = self._get_data() + if not result: + self.error('_get_data() returned no data') + return False + self._data_from_check = result + return True + + def _get_data(self): + threads = list() + queue = Queue() + result = dict() + + for method in self.methods: + th = Thread(target=method.get_data_function, args=(queue, method.url, method.stats)) + th.start() + threads.append(th) + + for thread in threads: + thread.join() + result.update(queue.get()) + + return result or None + + def _get_overview_stats(self, queue, url, stats): + """ + Format data received from http request + :return: dict + """ + + raw_data = self._get_raw_data(url) + + if not raw_data: + return queue.put(dict()) + data = loads(raw_data) + data = data[0] if isinstance(data, list) else data + + to_netdata = fetch_data_(raw_data=data, metrics_list=stats) + return queue.put(to_netdata) + + +def fetch_data_(raw_data, metrics_list): + to_netdata = dict() + for metric, new_name in metrics_list: + value = raw_data + for key in metric.split('.'): + try: + value = value[key] + except (KeyError, TypeError): + break + if not isinstance(value, dict): + to_netdata[new_name or key] = value + return to_netdata |