Req 7.2 - Throttling
I would like to know if I am throttling traffic based on configured limits. If so, I might want to change these limits to throttle more or less.
These limits are typically designed to protect the system from being overwhelmed in case of a DDOS. However, sometimes the throttles are set low enough that they impact throughput unnecessarily during normal operation.
Priorities
- Fetch-limits
- clients per query
- client-quotas
- TCP quotas
- RRL
? Is this server being throttled by fetch-limits or is this zone being throttled by fetch-limits? Log instances of crossing the thresholds where throttling kicks in, when you cross the threshold again on the way down.
Several specific problems we would like to address are:
- bind9#665 Add "rndc fetchlimits" command to dump currently-active ADB rate-limited servers and zones
- bind9#915 Add ability to determine frozen zones
- bind9#1232 (closed) [ISC-support #15166] expose zone timers (reload, refresh, expire) via stats channel