CoreDNS collector
CoreDNS
is a fast and flexible DNS server.
This module monitor one or more CoreDNS
instances depending on configuration.
Metrics
All metrics have "coredns." prefix.
Metric | Scope | Dimensions | Units |
---|---|---|---|
dns_request_count_total | global | requests | requests/s |
dns_responses_count_total | global | responses | responses/s |
dns_request_count_total_per_status | global | processed, dropped | requests/s |
dns_no_matching_zone_dropped_total | global | dropped | requests/s |
dns_panic_count_total | global | panics | panics/s |
dns_requests_count_total_per_proto | global | udp, tcp | requests/s |
dns_requests_count_total_per_ip_family | global | v4, v6 | requests/s |
dns_requests_count_total_per_per_type | global | a, aaaa, mx, soa, cname, ptr, txt, ns, ds, dnskey, rrsig, nsec, nsec3, ixfr, any, other | requests/s |
dns_responses_count_total_per_rcode | global | noerror, formerr, servfail, nxdomain, notimp, refused, yxdomain, yxrrset, nxrrset, notauth, notzone, badsig, badkey, badtime, badmode, badname, badalg, badtrunc, badcookie, other | responses/s |
server_dns_request_count_total | server | requests | requests/s |
server_dns_responses_count_total | server | responses | responses/s |
server_dns_responses_count_total | server | responses | responses/s |
server_request_count_total_per_status | server | processed, dropped | requests/s |
server_requests_count_total_per_proto | server | udp, tcp | requests/s |
server_requests_count_total_per_ip_family | server | v4, v6 | requests/s |
server_requests_count_total_per_per_type | server | a, aaaa, mx, soa, cname, ptr, txt, ns, ds, dnskey, rrsig, nsec, nsec3, ixfr, any, other | requests/s |
server_responses_count_total_per_rcode | server | noerror, formerr, servfail, nxdomain, notimp, refused, yxdomain, yxrrset, nxrrset, notauth, notzone, badsig, badkey, badtime, badmode, badname, badalg, badtrunc, badcookie, other | responses/s |
zone_dns_request_count_total | server | requests | requests/s |
zone_dns_responses_count_total | server | responses | responses/s |
zone_dns_responses_count_total | server | responses | responses/s |
zone_requests_count_total_per_proto | server | udp, tcp | requests/s |
zone_requests_count_total_per_ip_family | server | v4, v6 | requests/s |
zone_requests_count_total_per_per_type | server | a, aaaa, mx, soa, cname, ptr, txt, ns, ds, dnskey, rrsig, nsec, nsec3, ixfr, any, other | requests/s |
zone_responses_count_total_per_rcode | server | noerror, formerr, servfail, nxdomain, notimp, refused, yxdomain, yxrrset, nxrrset, notauth, notzone, badsig, badkey, badtime, badmode, badname, badalg, badtrunc, badcookie, other | responses/s |
Configuration
Edit the go.d/coredns.conf
configuration file using edit-config
from the
Netdata config directory, which is typically at /etc/netdata
.
cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/coredns.conf
The module needs only the url
to a CoreDNS metrics-address
. Here is an example for several instances:
jobs:
- name: local
url: http://127.0.0.1:9153/metrics
- name: remote
url: http://203.0.113.10:9153/metrics
For all available options, please see the module's configuration file.
Troubleshooting
To troubleshoot issues with the coredns
collector, run the go.d.plugin
with the debug option enabled. The output
should give you clues as to why the collector isn't working.
Navigate to the
plugins.d
directory, usually at/usr/libexec/netdata/plugins.d/
. If that's not the case on your system, opennetdata.conf
and look for theplugins
setting under[directories]
.cd /usr/libexec/netdata/plugins.d/
Switch to the
netdata
user.sudo -u netdata -s
Run the
go.d.plugin
to debug the collector:./go.d.plugin -d -m coredns
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