README
¶
DNSdist monitoring with Netdata
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.
Charts
- Client queries received in
queries/s - Client queries dropped in
queries/s - Packets dropped in
packets/s - Answers statistics in
answers/s - Backend responses in
responses/s - Backend communication errors in
errors/s - Backend error responses in
responses/s - Cache performance in
answers/s - DNSdist server CPU utilization in
ms/s - DNSdist server memory utilization in
MiB - Query latency in
queries/s - Average latency for the last N queries in
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.
First, navigate to your plugins directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your
system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch
to the netdata user.
cd /usr/libexec/netdata/plugins.d/
sudo -u netdata -s
You can now run the go.d.plugin orchestrator to debug the collector:
./go.d.plugin -d -m dnsdist
Documentation
Source Files