DNSdist collector
DNSdist
is a highly DNS-, DoS- and abuse-aware loadbalancer.
This module monitors load-balancer performance and health metrics.
It collects metrics from the internal webserver.
Used endpoints:
Requirements
For collecting metrics via HTTP, we need enabled webserver.
Metrics
All metrics have "dnsdist." prefix.
Metric | Scope | Dimensions | Units |
---|---|---|---|
queries | global | all, recursive, empty | queries/s |
queries_dropped | global | rule_drop, dynamic_blocked, no_policy, non_queries | queries/s |
packets_dropped | global | acl | packets/s |
answers | global | self_answered, nxdomain, refused, trunc_failures | answers/s |
backend_responses | global | responses | responses/s |
backend_commerrors | global | send_errors | errors/s |
backend_errors | global | timeouts, servfail, non_compliant | responses/s |
cache | global | hits, misses | answers/s |
servercpu | global | system_state, user_state | ms/s |
servermem | global | memory_usage | MiB |
query_latency | global | 1ms, 10ms, 50ms, 100ms, 1sec, slow | queries/s |
query_latency_avg | global | 100, 1k, 10k, 1000k | microseconds |
Configuration
Edit the go.d/dnsdist.conf
configuration file using edit-config
from the
Agent's config directory, which is typically at /etc/netdata
.
cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/dnsdist.conf
Needs url
and password
or apikey to access the webserver.
Here is a configuration example:
jobs:
- name: local
url: 'http://127.0.0.1:8083'
headers:
X-API-Key: 'your-api-key' # static pre-shared authentication key for access to the REST API (api-key).
- name: remote
url: 'http://203.0.113.0:8083'
headers:
X-API-Key: 'your-api-key' # static pre-shared authentication key for access to the REST API (api-key).
For all available options, see the dnsdist
collector's configuration file.
Troubleshooting
To troubleshoot issues with the dnsdist
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 dnsdist
Do you have any feedback for this page? If so, you can open a new issue on our netdata/learn repository.