참고 링크

http://www.mongodb.org/display/DOCS/Monitoring+and+Diagnostics#MonitoringandDiagnostics-HostedMonitoring
http://gurjarmehul.wordpress.com/2011/12/27/monitoring-mongodb/

몽고DB를 모니터링하기 위한 방법은 다양하다.

1. 툴을 이용한 모니터링

• munin
• Server stats: this will retrieve server stats (requires python; uses http interface)
• Collection stats, this will display collection sizes, index sizes, and each (configured) collection count for one DB (requires python; uses driver to connect)

• Ganglia:
• ganglia-gmond
• mongodb-ganglia

• cacti
• Mikoomi provides a MongoDB plugin for Zabbix
• Nagios
• Motop - Realtime monitoring tool for several MongoDB servers. Shows current operations ordered by durations every second.

• mtop - A top like utility for Mongo

• Mongo Live - A Chrome extension that provides a real-time server status view (uses the rest interface).

2. Shell Command

• db.serverStatus() : 일반적인 서버 상태 정보
• serverStatus Command

• db.stats() : 선택된(use) 데이타베이스 상태 정보
• db.foo.find().explain() : 쿼리 실행 계획
• db.users.stats() : collection 통계
• 프로파일러
• db.setProfilingLevel(2) ;  profile enable
• db.system.profile.find() : slow query see
• db.setProfilingLevel(0) ;  profile disable

3. Utility

• mongostat

mongostat --host 127.0.0.1:27017 30 --noheaders > perflog.txt

30초마다 헤더정보 없이 mongostat의 결과 정보를 peflog.txt에 기록해라.

• Mongotop
• read/write의 성능 정보(sec/per)

• Query profiler(Slow query 분석)
• Http console

http://localhost:28017