What is the best way to grab the named stats such as Resolver Statistics (IPv4 queries sent, IPv4 responses received etc) and Cache Statistics (cache hits, cache misses etc) and parse them to be able to visualize them on a dashboard with Elastic. The named_stats.txt file on the DNS master and DNS slaves have this file that has a ton of stats that can be helpful in troubleshooting DNS issues for us. We currently leverage logstash for most our queries today.
Example output of named_stats.txt:
++ Cache Statistics ++
[View: default]
195374 IPv4 queries sent
195307 IPv4 responses received
13600 NXDOMAIN received
5188 SERVFAIL received
2683 query retries
67 query timeouts
4066 queries with RTT < 10ms
184536 queries with RTT 10-100ms
6670 queries with RTT 100-500ms
20 queries with RTT 500-800ms
15 queries with RTT 800-1600ms
523 bucket size
2572 spilled due to server quota
[View: _bind]
++ Cache Statistics ++
[View: default]
712227 cache hits
195628 cache misses
380050 cache hits (from query)
325574 cache misses (from query)
0 cache records deleted due to memory exhaustion
17819 cache records deleted due to TTL expiration
630 cache database nodes
519 cache database hash buckets
2418422 cache tree memory total
247299 cache tree memory in use
323080 cache tree highest memory in use
393216 cache heap memory total
132096 cache heap memory in use
132096 cache heap highest memory in use
[View: _bind (Cache: _bind)]
