--- /dev/null
+# -*- coding: utf-8 -*-
+# Description: mongodb netdata python.d module
+# Author: l2isbad
+
+from base import SimpleService
+from copy import deepcopy
+from datetime import datetime
+from sys import exc_info
+
+try:
+ from pymongo import MongoClient, ASCENDING, DESCENDING
+ from pymongo.errors import PyMongoError
+ PYMONGO = True
+except ImportError:
+ PYMONGO = False
+
+# default module values (can be overridden per job in `config`)
+# update_every = 2
+priority = 60000
+retries = 60
+
+REPLSET_STATES = [
+ ('1', 'primary'),
+ ('8', 'down'),
+ ('2', 'secondary'),
+ ('3', 'recovering'),
+ ('5', 'startup2'),
+ ('4', 'fatal'),
+ ('7', 'arbiter'),
+ ('6', 'unknown'),
+ ('9', 'rollback'),
+ ('10', 'removed'),
+ ('0', 'startup')]
+
+
+def multiply_by_100(value):
+ return value * 100
+
+DEFAULT_METRICS = [
+ ('opcounters.delete', None, None),
+ ('opcounters.update', None, None),
+ ('opcounters.insert', None, None),
+ ('opcounters.query', None, None),
+ ('opcounters.getmore', None, None),
+ ('globalLock.activeClients.readers', 'activeClients_readers', None),
+ ('globalLock.activeClients.writers', 'activeClients_writers', None),
+ ('connections.available', 'connections_available', None),
+ ('connections.current', 'connections_current', None),
+ ('mem.mapped', None, None),
+ ('mem.resident', None, None),
+ ('mem.virtual', None, None),
+ ('globalLock.currentQueue.readers', 'currentQueue_readers', None),
+ ('globalLock.currentQueue.writers', 'currentQueue_writers', None),
+ ('asserts.msg', None, None),
+ ('asserts.regular', None, None),
+ ('asserts.user', None, None),
+ ('asserts.warning', None, None),
+ ('extra_info.page_faults', None, None),
+ ('metrics.record.moves', None, None),
+ ('backgroundFlushing.average_ms', None, multiply_by_100),
+ ('backgroundFlushing.last_ms', None, multiply_by_100),
+ ('backgroundFlushing.flushes', None, multiply_by_100),
+ ('metrics.cursor.timedOut', None, None),
+ ('metrics.cursor.open.total', 'cursor_total', None),
+ ('metrics.cursor.open.noTimeout', None, None),
+ ('cursors.timedOut', None, None),
+ ('cursors.totalOpen', 'cursor_total', None)
+]
+
+DUR = [
+ ('dur.commits', None, None),
+ ('dur.journaledMB', None, multiply_by_100)
+]
+
+WIREDTIGER = [
+ ('wiredTiger.concurrentTransactions.read.available', 'wiredTigerRead_available', None),
+ ('wiredTiger.concurrentTransactions.read.out', 'wiredTigerRead_out', None),
+ ('wiredTiger.concurrentTransactions.write.available', 'wiredTigerWrite_available', None),
+ ('wiredTiger.concurrentTransactions.write.out', 'wiredTigerWrite_out', None),
+ ('wiredTiger.cache.bytes currently in the cache', None, None),
+ ('wiredTiger.cache.tracked dirty bytes in the cache', None, None),
+ ('wiredTiger.cache.maximum bytes configured', None, None),
+ ('wiredTiger.cache.unmodified pages evicted', 'unmodified', None),
+ ('wiredTiger.cache.modified pages evicted', 'modified', None)
+]
+
+TCMALLOC = [
+ ('tcmalloc.generic.current_allocated_bytes', None, None),
+ ('tcmalloc.generic.heap_size', None, None),
+ ('tcmalloc.tcmalloc.central_cache_free_bytes', None, None),
+ ('tcmalloc.tcmalloc.current_total_thread_cache_bytes', None, None),
+ ('tcmalloc.tcmalloc.pageheap_free_bytes', None, None),
+ ('tcmalloc.tcmalloc.pageheap_unmapped_bytes', None, None),
+ ('tcmalloc.tcmalloc.thread_cache_free_bytes', None, None),
+ ('tcmalloc.tcmalloc.transfer_cache_free_bytes', None, None)
+]
+
+COMMANDS = [
+ ('metrics.commands.count.total', 'count_total', None),
+ ('metrics.commands.createIndexes.total', 'createIndexes_total', None),
+ ('metrics.commands.delete.total', 'delete_total', None),
+ ('metrics.commands.eval.total', 'eval_total', None),
+ ('metrics.commands.findAndModify.total', 'findAndModify_total', None),
+ ('metrics.commands.insert.total', 'insert_total', None),
+ ('metrics.commands.delete.total', 'delete_total', None),
+ ('metrics.commands.count.failed', 'count_failed', None),
+ ('metrics.commands.createIndexes.failed', 'createIndexes_failed', None),
+ ('metrics.commands.delete.failed', 'delete_failed', None),
+ ('metrics.commands.eval.failed', 'eval_failed', None),
+ ('metrics.commands.findAndModify.failed', 'findAndModify_failed', None),
+ ('metrics.commands.insert.failed', 'insert_failed', None),
+ ('metrics.commands.delete.failed', 'delete_failed', None)
+]
+
+LOCKS = [
+ ('locks.Collection.acquireCount.R', 'Collection_R', None),
+ ('locks.Collection.acquireCount.r', 'Collection_r', None),
+ ('locks.Collection.acquireCount.W', 'Collection_W', None),
+ ('locks.Collection.acquireCount.w', 'Collection_w', None),
+ ('locks.Database.acquireCount.R', 'Database_R', None),
+ ('locks.Database.acquireCount.r', 'Database_r', None),
+ ('locks.Database.acquireCount.W', 'Database_W', None),
+ ('locks.Database.acquireCount.w', 'Database_w', None),
+ ('locks.Global.acquireCount.R', 'Global_R', None),
+ ('locks.Global.acquireCount.r', 'Global_r', None),
+ ('locks.Global.acquireCount.W', 'Global_W', None),
+ ('locks.Global.acquireCount.w', 'Global_w', None),
+ ('locks.Metadata.acquireCount.R', 'Metadata_R', None),
+ ('locks.Metadata.acquireCount.w', 'Metadata_w', None),
+ ('locks.oplog.acquireCount.r', 'oplog_r', None),
+ ('locks.oplog.acquireCount.w', 'oplog_w', None)
+]
+
+DBSTATS = [
+ 'dataSize',
+ 'indexSize',
+ 'storageSize',
+ 'objects'
+]
+
+# charts order (can be overridden if you want less charts, or different order)
+ORDER = ['read_operations', 'write_operations', 'active_clients', 'journaling_transactions',
+ 'journaling_volume', 'background_flush_average', 'background_flush_last', 'background_flush_rate',
+ 'wiredtiger_read', 'wiredtiger_write', 'cursors', 'connections', 'memory', 'page_faults',
+ 'queued_requests', 'record_moves', 'wiredtiger_cache', 'wiredtiger_pages_evicted', 'asserts',
+ 'locks_collection', 'locks_database', 'locks_global', 'locks_metadata', 'locks_oplog',
+ 'dbstats_objects', 'tcmalloc_generic', 'tcmalloc_metrics', 'command_total_rate', 'command_failed_rate']
+
+CHARTS = {
+ 'read_operations': {
+ 'options': [None, 'Received read requests', 'requests/s', 'throughput metrics',
+ 'mongodb.read_operations', 'line'],
+ 'lines': [
+ ['query', None, 'incremental'],
+ ['getmore', None, 'incremental']
+ ]},
+ 'write_operations': {
+ 'options': [None, 'Received write requests', 'requests/s', 'throughput metrics',
+ 'mongodb.write_operations', 'line'],
+ 'lines': [
+ ['insert', None, 'incremental'],
+ ['update', None, 'incremental'],
+ ['delete', None, 'incremental']
+ ]},
+ 'active_clients': {
+ 'options': [None, 'Clients with read or write operations in progress or queued', 'clients',
+ 'throughput metrics', 'mongodb.active_clients', 'line'],
+ 'lines': [
+ ['activeClients_readers', 'readers', 'absolute'],
+ ['activeClients_writers', 'writers', 'absolute']
+ ]},
+ 'journaling_transactions': {
+ 'options': [None, 'Transactions that have been written to the journal', 'commits',
+ 'database performance', 'mongodb.journaling_transactions', 'line'],
+ 'lines': [
+ ['commits', None, 'absolute']
+ ]},
+ 'journaling_volume': {
+ 'options': [None, 'Volume of data written to the journal', 'MB', 'database performance',
+ 'mongodb.journaling_volume', 'line'],
+ 'lines': [
+ ['journaledMB', 'volume', 'absolute', 1, 100]
+ ]},
+ 'background_flush_average': {
+ 'options': [None, 'Average time taken by flushes to execute', 'ms', 'database performance',
+ 'mongodb.background_flush_average', 'line'],
+ 'lines': [
+ ['average_ms', 'time', 'absolute', 1, 100]
+ ]},
+ 'background_flush_last': {
+ 'options': [None, 'Time taken by the last flush operation to execute', 'ms', 'database performance',
+ 'mongodb.background_flush_last', 'line'],
+ 'lines': [
+ ['last_ms', 'time', 'absolute', 1, 100]
+ ]},
+ 'background_flush_rate': {
+ 'options': [None, 'Flushes rate', 'flushes', 'database performance', 'mongodb.background_flush_rate', 'line'],
+ 'lines': [
+ ['flushes', 'flushes', 'incremental', 1, 1]
+ ]},
+ 'wiredtiger_read': {
+ 'options': [None, 'Read tickets in use and remaining', 'tickets', 'database performance',
+ 'mongodb.wiredtiger_read', 'stacked'],
+ 'lines': [
+ ['wiredTigerRead_available', 'available', 'absolute', 1, 1],
+ ['wiredTigerRead_out', 'inuse', 'absolute', 1, 1]
+ ]},
+ 'wiredtiger_write': {
+ 'options': [None, 'Write tickets in use and remaining', 'tickets', 'database performance',
+ 'mongodb.wiredtiger_write', 'stacked'],
+ 'lines': [
+ ['wiredTigerWrite_available', 'available', 'absolute', 1, 1],
+ ['wiredTigerWrite_out', 'inuse', 'absolute', 1, 1]
+ ]},
+ 'cursors': {
+ 'options': [None, 'Currently openned cursors, cursors with timeout disabled and timed out cursors',
+ 'cursors', 'database performance', 'mongodb.cursors', 'stacked'],
+ 'lines': [
+ ['cursor_total', 'openned', 'absolute', 1, 1],
+ ['noTimeout', None, 'absolute', 1, 1],
+ ['timedOut', None, 'incremental', 1, 1]
+ ]},
+ 'connections': {
+ 'options': [None, 'Currently connected clients and unused connections', 'connections',
+ 'resource utilization', 'mongodb.connections', 'stacked'],
+ 'lines': [
+ ['connections_available', 'unused', 'absolute', 1, 1],
+ ['connections_current', 'connected', 'absolute', 1, 1]
+ ]},
+ 'memory': {
+ 'options': [None, 'Memory metrics', 'MB', 'resource utilization', 'mongodb.memory', 'stacked'],
+ 'lines': [
+ ['virtual', None, 'absolute', 1, 1],
+ ['resident', None, 'absolute', 1, 1],
+ ['nonmapped', None, 'absolute', 1, 1],
+ ['mapped', None, 'absolute', 1, 1]
+ ]},
+ 'page_faults': {
+ 'options': [None, 'Number of times MongoDB had to fetch data from disk', 'request/s',
+ 'resource utilization', 'mongodb.page_faults', 'line'],
+ 'lines': [
+ ['page_faults', None, 'incremental', 1, 1]
+ ]},
+ 'queued_requests': {
+ 'options': [None, 'Currently queued read and wrire requests', 'requests', 'resource saturation',
+ 'mongodb.queued_requests', 'line'],
+ 'lines': [
+ ['currentQueue_readers', 'readers', 'absolute', 1, 1],
+ ['currentQueue_writers', 'writers', 'absolute', 1, 1]
+ ]},
+ 'record_moves': {
+ 'options': [None, 'Number of times documents had to be moved on-disk', 'number',
+ 'resource saturation', 'mongodb.record_moves', 'line'],
+ 'lines': [
+ ['moves', None, 'incremental', 1, 1]
+ ]},
+ 'asserts': {
+ 'options': [None, 'Number of message, warning, regular, corresponding to errors generated'
+ ' by users assertions raised', 'number', 'errors (asserts)', 'mongodb.asserts', 'line'],
+ 'lines': [
+ ['msg', None, 'incremental', 1, 1],
+ ['warning', None, 'incremental', 1, 1],
+ ['regular', None, 'incremental', 1, 1],
+ ['user', None, 'incremental', 1, 1]
+ ]},
+ 'wiredtiger_cache': {
+ 'options': [None, 'The percentage of the wiredTiger cache that is in use and cache with dirty bytes',
+ 'percent', 'resource utilization', 'mongodb.wiredtiger_cache', 'stacked'],
+ 'lines': [
+ ['wiredTiger_percent_clean', 'inuse', 'absolute', 1, 1000],
+ ['wiredTiger_percent_dirty', 'dirty', 'absolute', 1, 1000]
+ ]},
+ 'wiredtiger_pages_evicted': {
+ 'options': [None, 'Pages evicted from the cache',
+ 'pages', 'resource utilization', 'mongodb.wiredtiger_pages_evicted', 'stacked'],
+ 'lines': [
+ ['unmodified', None, 'absolute', 1, 1],
+ ['modified', None, 'absolute', 1, 1]
+ ]},
+ 'dbstats_objects': {
+ 'options': [None, 'Number of documents in the database among all the collections', 'documents',
+ 'storage size metrics', 'mongodb.dbstats_objects', 'stacked'],
+ 'lines': [
+ ]},
+ 'tcmalloc_generic': {
+ 'options': [None, 'Tcmalloc generic metrics', 'MB', 'tcmalloc', 'mongodb.tcmalloc_generic', 'stacked'],
+ 'lines': [
+ ['current_allocated_bytes', 'allocated', 'absolute', 1, 1048576],
+ ['heap_size', 'heap_size', 'absolute', 1, 1048576]
+ ]},
+ 'tcmalloc_metrics': {
+ 'options': [None, 'Tcmalloc metrics', 'KB', 'tcmalloc', 'mongodb.tcmalloc_metrics', 'stacked'],
+ 'lines': [
+ ['central_cache_free_bytes', 'central_cache_free', 'absolute', 1, 1024],
+ ['current_total_thread_cache_bytes', 'current_total_thread_cache', 'absolute', 1, 1024],
+ ['pageheap_free_bytes', 'pageheap_free', 'absolute', 1, 1024],
+ ['pageheap_unmapped_bytes', 'pageheap_unmapped', 'absolute', 1, 1024],
+ ['thread_cache_free_bytes', 'thread_cache_free', 'absolute', 1, 1024],
+ ['transfer_cache_free_bytes', 'transfer_cache_free', 'absolute', 1, 1024]
+ ]},
+ 'command_total_rate': {
+ 'options': [None, 'Commands total rate', 'commands/s', 'commands', 'mongodb.command_total_rate', 'stacked'],
+ 'lines': [
+ ['count_total', 'count', 'incremental', 1, 1],
+ ['createIndexes_total', 'createIndexes', 'incremental', 1, 1],
+ ['delete_total', 'delete', 'incremental', 1, 1],
+ ['eval_total', 'eval', 'incremental', 1, 1],
+ ['findAndModify_total', 'findAndModify', 'incremental', 1, 1],
+ ['insert_total', 'insert', 'incremental', 1, 1],
+ ['update_total', 'update', 'incremental', 1, 1]
+ ]},
+ 'command_failed_rate': {
+ 'options': [None, 'Commands failed rate', 'commands/s', 'commands', 'mongodb.command_failed_rate', 'stacked'],
+ 'lines': [
+ ['count_failed', 'count', 'incremental', 1, 1],
+ ['createIndexes_failed', 'createIndexes', 'incremental', 1, 1],
+ ['delete_failed', 'delete', 'incremental', 1, 1],
+ ['eval_failed', 'eval', 'incremental', 1, 1],
+ ['findAndModify_failed', 'findAndModify', 'incremental', 1, 1],
+ ['insert_failed', 'insert', 'incremental', 1, 1],
+ ['update_failed', 'update', 'incremental', 1, 1]
+ ]},
+ 'locks_collection': {
+ 'options': [None, 'Collection lock. Number of times the lock was acquired in the specified mode',
+ 'locks', 'locks metrics', 'mongodb.locks_collection', 'stacked'],
+ 'lines': [
+ ['Collection_R', 'shared', 'incremental'],
+ ['Collection_W', 'exclusive', 'incremental'],
+ ['Collection_r', 'intent_shared', 'incremental'],
+ ['Collection_w', 'intent_exclusive', 'incremental']
+ ]},
+ 'locks_database': {
+ 'options': [None, 'Database lock. Number of times the lock was acquired in the specified mode',
+ 'locks', 'locks metrics', 'mongodb.locks_database', 'stacked'],
+ 'lines': [
+ ['Database_R', 'shared', 'incremental'],
+ ['Database_W', 'exclusive', 'incremental'],
+ ['Database_r', 'intent_shared', 'incremental'],
+ ['Database_w', 'intent_exclusive', 'incremental']
+ ]},
+ 'locks_global': {
+ 'options': [None, 'Global lock. Number of times the lock was acquired in the specified mode',
+ 'locks', 'locks metrics', 'mongodb.locks_global', 'stacked'],
+ 'lines': [
+ ['Global_R', 'shared', 'incremental'],
+ ['Global_W', 'exclusive', 'incremental'],
+ ['Global_r', 'intent_shared', 'incremental'],
+ ['Global_w', 'intent_exclusive', 'incremental']
+ ]},
+ 'locks_metadata': {
+ 'options': [None, 'Metadata lock. Number of times the lock was acquired in the specified mode',
+ 'locks', 'locks metrics', 'mongodb.locks_metadata', 'stacked'],
+ 'lines': [
+ ['Metadata_R', 'shared', 'incremental'],
+ ['Metadata_w', 'intent_exclusive', 'incremental']
+ ]},
+ 'locks_oplog': {
+ 'options': [None, 'Lock on the oplog. Number of times the lock was acquired in the specified mode',
+ 'locks', 'locks metrics', 'mongodb.locks_oplog', 'stacked'],
+ 'lines': [
+ ['Metadata_r', 'intent_shared', 'incremental'],
+ ['Metadata_w', 'intent_exclusive', 'incremental']
+ ]}
+}
+
+
+class Service(SimpleService):
+ def __init__(self, configuration=None, name=None):
+ SimpleService.__init__(self, configuration=configuration, name=name)
+ self.order = ORDER[:]
+ self.definitions = deepcopy(CHARTS)
+ self.user = self.configuration.get('user')
+ self.password = self.configuration.get('pass')
+ self.host = self.configuration.get('host', '127.0.0.1')
+ self.port = self.configuration.get('port', 27017)
+ self.timeout = self.configuration.get('timeout', 100)
+ self.metrics_to_collect = deepcopy(DEFAULT_METRICS)
+ self.connection = None
+ self.do_replica = None
+ self.databases = list()
+
+ def check(self):
+ if not PYMONGO:
+ self.error('Pymongo module is needed to use mongodb.chart.py')
+ return False
+ self.connection, server_status, error = self._create_connection()
+ if error:
+ self.error(error)
+ return False
+
+ self.build_metrics_to_collect_(server_status)
+
+ try:
+ self._get_data()
+ except (LookupError, SyntaxError, AttributeError):
+ self.error('Type: %s, error: %s' % (str(exc_info()[0]), str(exc_info()[1])))
+ return False
+ else:
+ self.create_charts_(server_status)
+ return True
+
+ def build_metrics_to_collect_(self, server_status):
+
+ self.do_replica = 'repl' in server_status
+ if 'dur' in server_status:
+ self.metrics_to_collect.extend(DUR)
+ if 'tcmalloc' in server_status:
+ self.metrics_to_collect.extend(TCMALLOC)
+ if 'commands' in server_status['metrics']:
+ self.metrics_to_collect.extend(COMMANDS)
+ if 'wiredTiger' in server_status:
+ self.metrics_to_collect.extend(WIREDTIGER)
+ if 'Collection' in server_status['locks']:
+ self.metrics_to_collect.extend(LOCKS)
+
+ def create_charts_(self, server_status):
+
+ if 'dur' not in server_status:
+ self.order.remove('journaling_transactions')
+ self.order.remove('journaling_volume')
+
+ if 'backgroundFlushing' not in server_status:
+ self.order.remove('background_flush_average')
+ self.order.remove('background_flush_last')
+ self.order.remove('background_flush_rate')
+
+ if 'wiredTiger' not in server_status:
+ self.order.remove('wiredtiger_write')
+ self.order.remove('wiredtiger_read')
+ self.order.remove('wiredtiger_cache')
+
+ if 'tcmalloc' not in server_status:
+ self.order.remove('tcmalloc_generic')
+ self.order.remove('tcmalloc_metrics')
+
+ if 'commands' not in server_status['metrics']:
+ self.order.remove('command_total_rate')
+ self.order.remove('command_failed_rate')
+
+ if 'Collection' not in server_status['locks']:
+ self.order.remove('locks_collection')
+ self.order.remove('locks_database')
+ self.order.remove('locks_global')
+ self.order.remove('locks_metadata')
+
+ if 'oplog' not in server_status['locks']:
+ self.order.remove('locks_oplog')
+
+ for dbase in self.databases:
+ self.order.append('_'.join([dbase, 'dbstats']))
+ self.definitions['_'.join([dbase, 'dbstats'])] = {
+ 'options': [None, '%s: size of all documents, indexes, extents' % dbase, 'KB',
+ 'storage size metrics', 'mongodb.dbstats', 'line'],
+ 'lines': [
+ ['_'.join([dbase, 'dataSize']), 'documents', 'absolute', 1, 1024],
+ ['_'.join([dbase, 'indexSize']), 'indexes', 'absolute', 1, 1024],
+ ['_'.join([dbase, 'storageSize']), 'extents', 'absolute', 1, 1024]
+ ]}
+ self.definitions['dbstats_objects']['lines'].append(['_'.join([dbase, 'objects']), dbase, 'absolute'])
+
+ if self.do_replica:
+ def create_lines(hosts, string):
+ lines = list()
+ for host in hosts:
+ dim_id = '_'.join([host, string])
+ lines.append([dim_id, host, 'absolute', 1, 1000])
+ return lines
+
+ def create_state_lines(states):
+ lines = list()
+ for state, description in states:
+ dim_id = '_'.join([host, 'state', state])
+ lines.append([dim_id, description, 'absolute', 1, 1])
+ return lines
+
+ all_hosts = server_status['repl']['hosts']
+ this_host = server_status['repl']['me']
+ other_hosts = [host for host in all_hosts if host != this_host]
+
+ if 'local' in self.databases:
+ self.order.append('oplog_window')
+ self.definitions['oplog_window'] = {
+ 'options': [None, 'Interval of time between the oldest and the latest entries in the oplog',
+ 'seconds', 'replication and oplog', 'mongodb.oplog_window', 'line'],
+ 'lines': [['timeDiff', 'window', 'absolute', 1, 1000]]}
+ # Create "heartbeat delay" chart
+ self.order.append('heartbeat_delay')
+ self.definitions['heartbeat_delay'] = {
+ 'options': [None, 'Time when last heartbeat was received'
+ ' from the replica set member (lastHeartbeatRecv)',
+ 'seconds ago', 'replication and oplog', 'mongodb.replication_heartbeat_delay', 'stacked'],
+ 'lines': create_lines(other_hosts, 'heartbeat_lag')}
+ # Create "optimedate delay" chart
+ self.order.append('optimedate_delay')
+ self.definitions['optimedate_delay'] = {
+ 'options': [None, 'Time when last entry from the oplog was applied (optimeDate)',
+ 'seconds ago', 'replication and oplog', 'mongodb.replication_optimedate_delay', 'stacked'],
+ 'lines': create_lines(all_hosts, 'optimedate')}
+ # Create "replica set members state" chart
+ for host in all_hosts:
+ chart_name = '_'.join([host, 'state'])
+ self.order.append(chart_name)
+ self.definitions[chart_name] = {
+ 'options': [None, 'Replica set member (%s) current state' % host, 'state',
+ 'replication and oplog', 'mongodb.replication_state', 'line'],
+ 'lines': create_state_lines(REPLSET_STATES)}
+
+ def _get_raw_data(self):
+ raw_data = dict()
+
+ raw_data.update(self.get_serverstatus_() or dict())
+ raw_data.update(self.get_dbstats_() or dict())
+ raw_data.update(self.get_replsetgetstatus_() or dict())
+ raw_data.update(self.get_getreplicationinfo_() or dict())
+
+ return raw_data or None
+
+ def get_serverstatus_(self):
+ raw_data = dict()
+ try:
+ raw_data['serverStatus'] = self.connection.admin.command('serverStatus')
+ except PyMongoError:
+ return None
+ else:
+ return raw_data
+
+ def get_dbstats_(self):
+ if not self.databases:
+ return None
+
+ raw_data = dict()
+ raw_data['dbStats'] = dict()
+ try:
+ for dbase in self.databases:
+ raw_data['dbStats'][dbase] = self.connection[dbase].command('dbStats')
+ except PyMongoError:
+ return None
+ else:
+ return raw_data
+
+ def get_replsetgetstatus_(self):
+ if not self.do_replica:
+ return None
+
+ raw_data = dict()
+ try:
+ raw_data['replSetGetStatus'] = self.connection.admin.command('replSetGetStatus')
+ except PyMongoError:
+ return None
+ else:
+ return raw_data
+
+ def get_getreplicationinfo_(self):
+ if not (self.do_replica and 'local' in self.databases):
+ return None
+
+ raw_data = dict()
+ raw_data['getReplicationInfo'] = dict()
+ try:
+ raw_data['getReplicationInfo']['ASCENDING'] = self.connection.local.oplog.rs.find().sort(
+ "$natural", ASCENDING).limit(1)[0]
+ raw_data['getReplicationInfo']['DESCENDING'] = self.connection.local.oplog.rs.find().sort(
+ "$natural", DESCENDING).limit(1)[0]
+ except PyMongoError:
+ return None
+ else:
+ return raw_data
+
+ def _get_data(self):
+ """
+ :return: dict
+ """
+ raw_data = self._get_raw_data()
+
+ if not raw_data:
+ return None
+
+ to_netdata = dict()
+ serverStatus = raw_data['serverStatus']
+ dbStats = raw_data.get('dbStats')
+ replSetGetStatus = raw_data.get('replSetGetStatus')
+ getReplicationInfo = raw_data.get('getReplicationInfo')
+ utc_now = datetime.utcnow()
+
+ # serverStatus
+ for metric, new_name, function in self.metrics_to_collect:
+ value = serverStatus
+ for key in metric.split('.'):
+ try:
+ value = value[key]
+ except KeyError:
+ break
+
+ if not isinstance(value, dict) and key:
+ to_netdata[new_name or key] = value if not function else function(value)
+
+ to_netdata['nonmapped'] = to_netdata['virtual'] - serverStatus['mem'].get('mappedWithJournal',
+ to_netdata['mapped'])
+ if to_netdata.get('maximum bytes configured'):
+ maximum = to_netdata['maximum bytes configured']
+ to_netdata['wiredTiger_percent_clean'] = int(to_netdata['bytes currently in the cache']
+ * 100 / maximum * 1000)
+ to_netdata['wiredTiger_percent_dirty'] = int(to_netdata['tracked dirty bytes in the cache']
+ * 100 / maximum * 1000)
+
+ # dbStats
+ if dbStats:
+ for dbase in dbStats:
+ for metric in DBSTATS:
+ key = '_'.join([dbase, metric])
+ to_netdata[key] = dbStats[dbase][metric]
+
+ # replSetGetStatus
+ if replSetGetStatus:
+ other_hosts = list()
+ members = replSetGetStatus['members']
+ unix_epoch = datetime(1970, 1, 1, 0, 0)
+
+ for member in members:
+ if not member.get('self'):
+ other_hosts.append(member)
+ # Replica set time diff between current time and time when last entry from the oplog was applied
+ if member['optimeDate'] != unix_epoch:
+ member_optimedate = member['name'] + '_optimedate'
+ to_netdata.update({member_optimedate: int(delta_calculation(delta=utc_now - member['optimeDate'],
+ multiplier=1000))})
+ # Replica set members state
+ member_state = member['name'] + '_state'
+ for elem in REPLSET_STATES:
+ state = elem[0]
+ to_netdata.update({'_'.join([member_state, state]): 0})
+ to_netdata.update({'_'.join([member_state, str(member['state'])]): member['state']})
+ # Heartbeat lag calculation
+ for other in other_hosts:
+ if other['lastHeartbeatRecv'] != unix_epoch:
+ node = other['name'] + '_heartbeat_lag'
+ to_netdata[node] = int(delta_calculation(delta=utc_now - other['lastHeartbeatRecv'],
+ multiplier=1000))
+
+ if getReplicationInfo:
+ first_event = getReplicationInfo['ASCENDING']['ts'].as_datetime()
+ last_event = getReplicationInfo['DESCENDING']['ts'].as_datetime()
+ to_netdata['timeDiff'] = int(delta_calculation(delta=last_event - first_event, multiplier=1000))
+
+ return to_netdata
+
+ def _create_connection(self):
+ conn_vars = {'host': self.host, 'port': self.port}
+ if hasattr(MongoClient, 'server_selection_timeout'):
+ conn_vars.update({'serverselectiontimeoutms': self.timeout})
+ try:
+ connection = MongoClient(**conn_vars)
+ if self.user and self.password:
+ connection.admin.authenticate(name=self.user, password=self.password)
+ # elif self.user:
+ # connection.admin.authenticate(name=self.user, mechanism='MONGODB-X509')
+ server_status = connection.admin.command('serverStatus')
+ except PyMongoError as error:
+ return None, None, str(error)
+ else:
+ try:
+ self.databases = connection.database_names()
+ except PyMongoError as error:
+ self.info('Can\'t collect databases: %s' % str(error))
+ return connection, server_status, None
+
+
+def delta_calculation(delta, multiplier=1):
+ if hasattr(delta, 'total_seconds'):
+ return delta.total_seconds() * multiplier
+ else:
+ return (delta.microseconds + (delta.seconds + delta.days * 24 * 3600) * 10 ** 6) / 10.0 ** 6 * multiplier
projects / netdata.git / commitdiff