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authorFederico Ceratto <federico.ceratto@gmail.com>2017-12-19 23:39:21 +0000
committerFederico Ceratto <federico.ceratto@gmail.com>2017-12-19 23:39:21 +0000
commit61aedf201c2c4bf0e5aa4db32e74f4d860b88593 (patch)
treebcf4f9a0cd8bc2daf38b2ff9f29bfcc1e5ed8968 /python.d/couchdb.chart.py
parentNew upstream version 1.8.0+dfsg (diff)
downloadnetdata-61aedf201c2c4bf0e5aa4db32e74f4d860b88593.tar.xz
netdata-61aedf201c2c4bf0e5aa4db32e74f4d860b88593.zip
New upstream version 1.9.0+dfsgupstream/1.9.0+dfsg
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diff --git a/python.d/couchdb.chart.py b/python.d/couchdb.chart.py
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+# -*- coding: utf-8 -*-
+# Description: couchdb netdata python.d module
+# Author: wohali <wohali@apache.org>
+# Thanks to l2isbad for good examples :)
+
+from collections import namedtuple, defaultdict
+from json import loads
+from threading import Thread
+from socket import gethostbyname, gaierror
+try:
+ from queue import Queue
+except ImportError:
+ from Queue import Queue
+
+from bases.FrameworkServices.UrlService import UrlService
+
+# default module values (can be overridden per job in `config`)
+update_every = 1
+priority = 60000
+retries = 60
+
+METHODS = namedtuple('METHODS', ['get_data', 'url', 'stats'])
+
+OVERVIEW_STATS = [
+ 'couchdb.database_reads.value',
+ 'couchdb.database_writes.value',
+ 'couchdb.httpd.view_reads.value'
+ 'couchdb.httpd_request_methods.COPY.value',
+ 'couchdb.httpd_request_methods.DELETE.value',
+ 'couchdb.httpd_request_methods.GET.value',
+ 'couchdb.httpd_request_methods.HEAD.value',
+ 'couchdb.httpd_request_methods.OPTIONS.value',
+ 'couchdb.httpd_request_methods.POST.value',
+ 'couchdb.httpd_request_methods.PUT.value',
+ 'couchdb.httpd_status_codes.200.value',
+ 'couchdb.httpd_status_codes.201.value',
+ 'couchdb.httpd_status_codes.202.value',
+ 'couchdb.httpd_status_codes.204.value',
+ 'couchdb.httpd_status_codes.206.value',
+ 'couchdb.httpd_status_codes.301.value',
+ 'couchdb.httpd_status_codes.302.value',
+ 'couchdb.httpd_status_codes.304.value',
+ 'couchdb.httpd_status_codes.400.value',
+ 'couchdb.httpd_status_codes.401.value',
+ 'couchdb.httpd_status_codes.403.value',
+ 'couchdb.httpd_status_codes.404.value',
+ 'couchdb.httpd_status_codes.405.value',
+ 'couchdb.httpd_status_codes.406.value',
+ 'couchdb.httpd_status_codes.409.value',
+ 'couchdb.httpd_status_codes.412.value',
+ 'couchdb.httpd_status_codes.413.value',
+ 'couchdb.httpd_status_codes.414.value',
+ 'couchdb.httpd_status_codes.415.value',
+ 'couchdb.httpd_status_codes.416.value',
+ 'couchdb.httpd_status_codes.417.value',
+ 'couchdb.httpd_status_codes.500.value',
+ 'couchdb.httpd_status_codes.501.value',
+ 'couchdb.open_os_files.value',
+ 'couch_replicator.jobs.running.value',
+ 'couch_replicator.jobs.pending.value',
+ 'couch_replicator.jobs.crashed.value',
+]
+
+SYSTEM_STATS = [
+ 'context_switches',
+ 'run_queue',
+ 'ets_table_count',
+ 'reductions',
+ 'memory.atom',
+ 'memory.atom_used',
+ 'memory.binary',
+ 'memory.code',
+ 'memory.ets',
+ 'memory.other',
+ 'memory.processes',
+ 'io_input',
+ 'io_output',
+ 'os_proc_count',
+ 'process_count',
+ 'internal_replication_jobs'
+]
+
+DB_STATS = [
+ 'doc_count',
+ 'doc_del_count',
+ 'sizes.file',
+ 'sizes.external',
+ 'sizes.active'
+]
+
+ORDER = [
+ 'activity',
+ 'request_methods',
+ 'response_codes',
+ 'active_tasks',
+ 'replicator_jobs',
+ 'open_files',
+ 'db_sizes_file',
+ 'db_sizes_external',
+ 'db_sizes_active',
+ 'db_doc_counts',
+ 'db_doc_del_counts',
+ 'erlang_memory',
+ 'erlang_proc_counts',
+ 'erlang_peak_msg_queue',
+ 'erlang_reductions'
+]
+
+CHARTS = {
+ 'activity': {
+ 'options': [None, 'Overall Activity', 'req/s',
+ 'dbactivity', 'couchdb.activity', 'stacked'],
+ 'lines': [
+ ['couchdb_database_reads', 'DB reads', 'incremental'],
+ ['couchdb_database_writes', 'DB writes', 'incremental'],
+ ['couchdb_httpd_view_reads', 'View reads', 'incremental']
+ ]
+ },
+ 'request_methods': {
+ 'options': [None, 'HTTP request methods', 'req/s',
+ 'httptraffic', 'couchdb.request_methods',
+ 'stacked'],
+ 'lines': [
+ ['couchdb_httpd_request_methods_COPY', 'COPY', 'incremental'],
+ ['couchdb_httpd_request_methods_DELETE', 'DELETE', 'incremental'],
+ ['couchdb_httpd_request_methods_GET', 'GET', 'incremental'],
+ ['couchdb_httpd_request_methods_HEAD', 'HEAD', 'incremental'],
+ ['couchdb_httpd_request_methods_OPTIONS', 'OPTIONS',
+ 'incremental'],
+ ['couchdb_httpd_request_methods_POST', 'POST', 'incremental'],
+ ['couchdb_httpd_request_methods_PUT', 'PUT', 'incremental']
+ ]
+ },
+ 'response_codes': {
+ 'options': [None, 'HTTP response status codes', 'resp/s',
+ 'httptraffic', 'couchdb.response_codes',
+ 'stacked'],
+ 'lines': [
+ ['couchdb_httpd_status_codes_200', '200 OK', 'incremental'],
+ ['couchdb_httpd_status_codes_201', '201 Created', 'incremental'],
+ ['couchdb_httpd_status_codes_202', '202 Accepted', 'incremental'],
+ ['couchdb_httpd_status_codes_2xx', 'Other 2xx Success',
+ 'incremental'],
+ ['couchdb_httpd_status_codes_3xx', '3xx Redirection',
+ 'incremental'],
+ ['couchdb_httpd_status_codes_4xx', '4xx Client error',
+ 'incremental'],
+ ['couchdb_httpd_status_codes_5xx', '5xx Server error',
+ 'incremental']
+ ]
+ },
+ 'open_files': {
+ 'options': [None, 'Open files', 'files',
+ 'ops', 'couchdb.open_files', 'line'],
+ 'lines': [
+ ['couchdb_open_os_files', '# files', 'absolute']
+ ]
+ },
+ 'active_tasks': {
+ 'options': [None, 'Active task breakdown', 'tasks',
+ 'ops', 'couchdb.active_tasks', 'stacked'],
+ 'lines': [
+ ['activetasks_indexer', 'Indexer', 'absolute'],
+ ['activetasks_database_compaction', 'DB Compaction', 'absolute'],
+ ['activetasks_replication', 'Replication', 'absolute'],
+ ['activetasks_view_compaction', 'View Compaction', 'absolute']
+ ]
+ },
+ 'replicator_jobs': {
+ 'options': [None, 'Replicator job breakdown', 'jobs',
+ 'ops', 'couchdb.replicator_jobs', 'stacked'],
+ 'lines': [
+ ['couch_replicator_jobs_running', 'Running', 'absolute'],
+ ['couch_replicator_jobs_pending', 'Pending', 'absolute'],
+ ['couch_replicator_jobs_crashed', 'Crashed', 'absolute'],
+ ['internal_replication_jobs', 'Internal replication jobs',
+ 'absolute']
+ ]
+ },
+ 'erlang_memory': {
+ 'options': [None, 'Erlang VM memory usage', 'bytes',
+ 'erlang', 'couchdb.erlang_vm_memory', 'stacked'],
+ 'lines': [
+ ['memory_atom', 'atom', 'absolute'],
+ ['memory_binary', 'binaries', 'absolute'],
+ ['memory_code', 'code', 'absolute'],
+ ['memory_ets', 'ets', 'absolute'],
+ ['memory_processes', 'procs', 'absolute'],
+ ['memory_other', 'other', 'absolute']
+ ]
+ },
+ 'erlang_reductions': {
+ 'options': [None, 'Erlang reductions', 'count',
+ 'erlang', 'couchdb.reductions', 'line'],
+ 'lines': [
+ ['reductions', 'reductions', 'incremental']
+ ]
+ },
+ 'erlang_proc_counts': {
+ 'options': [None, 'Process counts', 'count',
+ 'erlang', 'couchdb.proccounts', 'line'],
+ 'lines': [
+ ['os_proc_count', 'OS procs', 'absolute'],
+ ['process_count', 'erl procs', 'absolute']
+ ]
+ },
+ 'erlang_peak_msg_queue': {
+ 'options': [None, 'Peak message queue size', 'count',
+ 'erlang', 'couchdb.peakmsgqueue',
+ 'line'],
+ 'lines': [
+ ['peak_msg_queue', 'peak size', 'absolute']
+ ]
+ },
+ # Lines for the following are added as part of check()
+ 'db_sizes_file': {
+ 'options': [None, 'Database sizes (file)', 'KB',
+ 'perdbstats', 'couchdb.db_sizes_file', 'line'],
+ 'lines': []
+ },
+ 'db_sizes_external': {
+ 'options': [None, 'Database sizes (external)', 'KB',
+ 'perdbstats', 'couchdb.db_sizes_external', 'line'],
+ 'lines': []
+ },
+ 'db_sizes_active': {
+ 'options': [None, 'Database sizes (active)', 'KB',
+ 'perdbstats', 'couchdb.db_sizes_active', 'line'],
+ 'lines': []
+ },
+ 'db_doc_counts': {
+ 'options': [None, 'Database # of docs', 'docs',
+ 'perdbstats', 'couchdb_db_doc_count', 'line'],
+ 'lines': []
+ },
+ 'db_doc_del_counts': {
+ 'options': [None, 'Database # of deleted docs', 'docs',
+ 'perdbstats', 'couchdb_db_doc_del_count', 'line'],
+ 'lines': []
+ }
+}
+
+
+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', 5984)
+ self.node = self.configuration.get('node', 'couchdb@127.0.0.1')
+ self.scheme = self.configuration.get('scheme', 'http')
+ self.user = self.configuration.get('user')
+ self.password = self.configuration.get('pass')
+ try:
+ self.dbs = self.configuration.get('databases').split(' ')
+ except (KeyError, AttributeError):
+ self.dbs = []
+
+ def check(self):
+ if not (self.host and self.port):
+ self.error('Host is not defined in the module configuration file')
+ return False
+ try:
+ self.host = gethostbyname(self.host)
+ except gaierror as error:
+ self.error(str(error))
+ return False
+ self.url = '{scheme}://{host}:{port}'.format(scheme=self.scheme,
+ host=self.host,
+ port=self.port)
+ stats = self.url + '/_node/{node}/_stats'.format(node=self.node)
+ active_tasks = self.url + '/_active_tasks'
+ system = self.url + '/_node/{node}/_system'.format(node=self.node)
+ self.methods = [METHODS(get_data=self._get_overview_stats,
+ url=stats,
+ stats=OVERVIEW_STATS),
+ METHODS(get_data=self._get_active_tasks_stats,
+ url=active_tasks,
+ stats=None),
+ METHODS(get_data=self._get_overview_stats,
+ url=system,
+ stats=SYSTEM_STATS),
+ METHODS(get_data=self._get_dbs_stats,
+ url=self.url,
+ stats=DB_STATS)]
+ # must initialise manager before using _get_raw_data
+ self._manager = self._build_manager()
+ self.dbs = [db for db in self.dbs
+ if self._get_raw_data(self.url + '/' + db)]
+ for db in self.dbs:
+ self.definitions['db_sizes_file']['lines'].append(
+ ['db_'+db+'_sizes_file', db, 'absolute', 1, 1000]
+ )
+ self.definitions['db_sizes_external']['lines'].append(
+ ['db_'+db+'_sizes_external', db, 'absolute', 1, 1000]
+ )
+ self.definitions['db_sizes_active']['lines'].append(
+ ['db_'+db+'_sizes_active', db, 'absolute', 1, 1000]
+ )
+ self.definitions['db_doc_counts']['lines'].append(
+ ['db_'+db+'_doc_count', db, 'absolute']
+ )
+ self.definitions['db_doc_del_counts']['lines'].append(
+ ['db_'+db+'_doc_del_count', db, 'absolute']
+ )
+ return UrlService.check(self)
+
+ def _get_data(self):
+ threads = list()
+ queue = Queue()
+ result = dict()
+
+ for method in self.methods:
+ th = Thread(target=method.get_data,
+ args=(queue, method.url, method.stats))
+ th.start()
+ threads.append(th)
+
+ for thread in threads:
+ thread.join()
+ result.update(queue.get())
+
+ # self.info('couchdb result = ' + str(result))
+ return result or None
+
+ def _get_overview_stats(self, queue, url, stats):
+ raw_data = self._get_raw_data(url)
+ if not raw_data:
+ return queue.put(dict())
+ data = loads(raw_data)
+ to_netdata = self._fetch_data(raw_data=data, metrics=stats)
+ if 'message_queues' in data:
+ to_netdata['peak_msg_queue'] = get_peak_msg_queue(data)
+ return queue.put(to_netdata)
+
+ def _get_active_tasks_stats(self, queue, url, _):
+ taskdict = defaultdict(int)
+ taskdict["activetasks_indexer"] = 0
+ taskdict["activetasks_database_compaction"] = 0
+ taskdict["activetasks_replication"] = 0
+ taskdict["activetasks_view_compaction"] = 0
+ raw_data = self._get_raw_data(url)
+ if not raw_data:
+ return queue.put(dict())
+ data = loads(raw_data)
+ for task in data:
+ taskdict["activetasks_" + task["type"]] += 1
+ return queue.put(dict(taskdict))
+
+ def _get_dbs_stats(self, queue, url, stats):
+ to_netdata = {}
+ for db in self.dbs:
+ raw_data = self._get_raw_data(url + '/' + db)
+ if not raw_data:
+ continue
+ data = loads(raw_data)
+ for metric in stats:
+ value = data
+ metrics_list = metric.split('.')
+ try:
+ for m in metrics_list:
+ value = value[m]
+ except KeyError as e:
+ self.debug('cannot process ' + metric + ' for ' + db
+ + ": " + str(e))
+ continue
+ metric_name = 'db_{0}_{1}'.format(db, '_'.join(metrics_list))
+ to_netdata[metric_name] = value
+ return queue.put(to_netdata)
+
+ def _fetch_data(self, 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 as e:
+ self.debug('cannot process ' + metric + ': ' + str(e))
+ continue
+ # strip off .value from end of stat
+ if metrics_list[-1] == 'value':
+ metrics_list = metrics_list[:-1]
+ # sum up 3xx/4xx/5xx
+ if metrics_list[0:2] == ['couchdb', 'httpd_status_codes'] and \
+ int(metrics_list[2]) > 202:
+ metrics_list[2] = '{0}xx'.format(int(metrics_list[2]) // 100)
+ if '_'.join(metrics_list) in data:
+ data['_'.join(metrics_list)] += value
+ else:
+ data['_'.join(metrics_list)] = value
+ else:
+ data['_'.join(metrics_list)] = value
+ return data
+
+
+def get_peak_msg_queue(data):
+ maxsize = 0
+ queues = data['message_queues']
+ for queue in iter(queues.values()):
+ if isinstance(queue, dict) and 'count' in queue:
+ value = queue['count']
+ elif isinstance(queue, int):
+ value = queue
+ else:
+ continue
+ maxsize = max(maxsize, value)
+ return maxsize