90 lines
2.2 KiB
Python
Executable File
90 lines
2.2 KiB
Python
Executable File
#!/usr/bin/env python3
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"""
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=head1 NAME
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mongo_lag - MongoDB Replication Lag
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Connects to a single mongo instance and retrieve replication lag for all connected members.
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=head1 APPLICABLE SYSTEMS
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MongoDB 3.X and 4.X with pymongo installed.
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=head1 CONFIGURATION
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Default for host is 127.0.0.1 and port 27017 and will work without being defined:
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[mongo_lag]
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env.host 127.0.0.1
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env.port 27017
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env.username user
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env.password P@55w0rd
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=head1 AUTHOR
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Stefan Andersen <stefan@stefanandersen.dk>
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Updated by Alban Espie-Guillon <alban.espie@alterway.fr>
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=head1 LICENSE
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The Beer Ware License (Revision 42)
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<alban.espie@alterway.fr> wrote this file. As long
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as you retain this notice you can do whatever you want
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with this stuff. If we meet some day, and you think
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this stuff is worth it, you can buy me a beer in return.
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SPDX-License-Identifier: Beerware
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=cut
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"""
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import os
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import sys
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import pymongo
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def _get_members():
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host = os.environ.get('host', '127.0.0.1')
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port = os.environ.get('port', 27017)
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username = os.environ.get('username', '')
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password = os.environ.get('password', '')
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conn = pymongo.MongoClient(host, int(port))
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if username:
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connAuth = conn['admin']
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connAuth.authenticate(username, password)
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repl_status = conn.admin.command("replSetGetStatus")
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members = {}
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for member in repl_status['members']:
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if member['stateStr'] != 'ARBITER' :
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name = member['name'].split('.')[0]
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members[name] = {'state': member['state'], 'optimeDate': member['optimeDate']}
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return members
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def run():
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members = _get_members();
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for member in members:
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if members[member]['state'] == 1:
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primary_optime = members[member]['optimeDate']
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for member in members:
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lag = (primary_optime - members[member]['optimeDate']).seconds
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print("{0}.value {1}".format(member, lag))
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def config():
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print("""graph_title MongoDB replication lag
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graph_args --base 1000
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graph_vlabel Replication lag (seconds)
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graph_category db
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""")
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for member in _get_members():
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print("{0}.label {0}".format(member))
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if __name__ == "__main__":
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if len(sys.argv) > 1 and sys.argv[1] == "config":
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config()
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else:
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run()
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