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authorLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
committerLennart Weller <lhw@ring0.de>2017-07-27 09:55:47 +0000
commita133c9c3b637b1dbe7b5b053f7e2572c1950cead (patch)
tree2207939a88e96bca329457f40a9d9d18ab659dc1 /python.d/rabbitmq.chart.py
parentNew upstream version 1.6.0+dfsg (diff)
downloadnetdata-a133c9c3b637b1dbe7b5b053f7e2572c1950cead.tar.xz
netdata-a133c9c3b637b1dbe7b5b053f7e2572c1950cead.zip
New upstream version 1.7.0+dfsgupstream/1.7.0+dfsg
Diffstat (limited to 'python.d/rabbitmq.chart.py')
-rw-r--r--python.d/rabbitmq.chart.py187
1 files changed, 187 insertions, 0 deletions
diff --git a/python.d/rabbitmq.chart.py b/python.d/rabbitmq.chart.py
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+# -*- 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