Goals
- Ease of administration.
- Adding, altering and removing monitors for large sets of machines should be trivial.
- Simple to ascertain what is monitored and whether or not the monitoring system itself is meeting its contracts.
- Small, tight and deployable on any unix variant.
- All reconfiguration can be performed in-flight.
- Efficiency in scale.
- Monitors should support thousands of machines on reasonably tight intervals:
- e.g. ICMP 10 pings over 10 seconds, repeat every 5 minutes -- over several thousands of IPs.
- HTTP request several URLs checking for content and/or HTTP code over thousands of machines.
- Delegated deployment.
- centralized configuration management.
- decentralized configuration manipulation.
- Applying policies (such as notification and escalation) to large groups of service
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