Advanced Monitoring Topics Ethan Galstad Presented By
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Advanced Monitoring Topics
Ethan Galstad
Presented By
NETWAYS Nagios Konferenz 2007
Distributed MonitoringDistributed Monitoring
April 14, 2011 3
Goals
Scalability
Performance
Remote monitoring
Central reporting, management
April 14, 2011 4
Methods
Distributed Worker Nodes (DNX)
Distributed Monitoring Servers (MNTOS)
Classical Nagios Setup
April 14, 2011 5
DNX
Advantages
Unlimited expansion with more worker nodes
Central administration
Disadvantages
Central server for DB, perf. data
dnx.sourceforge.net
See Also: Mod Gearman
April 14, 2011 6
MNTOS
Advantages
Central dashboard
Unlimited expansion with more servers
Disadvantages
Decentralized configuration
Decentralized reporting
www.sorkmos.com
See Also: Thruk
April 14, 2011 7
Classical Nagios Setup
Advantages
Central monitoring server as dashboard
Remote monitoring servers to handle load
Disadvantages
Difficult management
Centralized perf. data
NETWAYS Nagios Konferenz 2007
High AvailabilityHigh Availability
April 14, 2011 9
HA Goal
Ensure monitoring never stops!
Data and state replication
April 14, 2011 10
Failover Solutions
VMware HA / vMotion
DRBD
April 14, 2011 11
Simpler Solution
Offsite monitoring server
Monitor the monitor
NETWAYS Nagios Konferenz 2007
Remote MonitoringRemote Monitoring
April 14, 2011 13
Remote Monitoring
Open firewall ports
Passive monitoring
April 14, 2011 14
Passive Monitoring
NSClient++ for Windows
Cron and NSCA / NRDP for Linux
NETWAYS Nagios Konferenz 2007
Useful ResourcesUseful Resources
April 14, 2011 16
Resources
exchange.nagios.org
library.nagios.com
NETWAYS Nagios Konferenz 2007
Questions?Questions?
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