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diff --git a/src/go/collectors/go.d.plugin/modules/dnsdist/integrations/dnsdist.md b/src/go/collectors/go.d.plugin/modules/dnsdist/integrations/dnsdist.md new file mode 100644 index 000000000..626fd50ab --- /dev/null +++ b/src/go/collectors/go.d.plugin/modules/dnsdist/integrations/dnsdist.md @@ -0,0 +1,210 @@ +<!--startmeta +custom_edit_url: "https://github.com/netdata/netdata/edit/master/src/go/collectors/go.d.plugin/modules/dnsdist/README.md" +meta_yaml: "https://github.com/netdata/netdata/edit/master/src/go/collectors/go.d.plugin/modules/dnsdist/metadata.yaml" +sidebar_label: "DNSdist" +learn_status: "Published" +learn_rel_path: "Collecting Metrics/DNS and DHCP Servers" +most_popular: False +message: "DO NOT EDIT THIS FILE DIRECTLY, IT IS GENERATED BY THE COLLECTOR'S metadata.yaml FILE" +endmeta--> + +# DNSdist + + +<img src="https://netdata.cloud/img/network-wired.svg" width="150"/> + + +Plugin: go.d.plugin +Module: dnsdist + +<img src="https://img.shields.io/badge/maintained%20by-Netdata-%2300ab44" /> + +## Overview + +This collector monitors DNSDist servers. + + + + +This collector is supported on all platforms. + +This collector supports collecting metrics from multiple instances of this integration, including remote instances. + + +### Default Behavior + +#### Auto-Detection + +This integration doesn't support auto-detection. + +#### Limits + +The default configuration for this integration does not impose any limits on data collection. + +#### Performance Impact + +The default configuration for this integration is not expected to impose a significant performance impact on the system. + + +## Metrics + +Metrics grouped by *scope*. + +The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels. + + + +### Per DNSdist instance + +These metrics refer to the entire monitored application. + +This scope has no labels. + +Metrics: + +| Metric | Dimensions | Unit | +|:------|:----------|:----| +| dnsdist.queries | all, recursive, empty | queries/s | +| dnsdist.queries_dropped | rule_drop, dynamic_blocked, no_policy, non_queries | queries/s | +| dnsdist.packets_dropped | acl | packets/s | +| dnsdist.answers | self_answered, nxdomain, refused, trunc_failures | answers/s | +| dnsdist.backend_responses | responses | responses/s | +| dnsdist.backend_commerrors | send_errors | errors/s | +| dnsdist.backend_errors | timeouts, servfail, non_compliant | responses/s | +| dnsdist.cache | hits, misses | answers/s | +| dnsdist.servercpu | system_state, user_state | ms/s | +| dnsdist.servermem | memory_usage | MiB | +| dnsdist.query_latency | 1ms, 10ms, 50ms, 100ms, 1sec, slow | queries/s | +| dnsdist.query_latency_avg | 100, 1k, 10k, 1000k | microseconds | + + + +## Alerts + +There are no alerts configured by default for this integration. + + +## Setup + +### Prerequisites + +#### Enable DNSdist built-in Webserver + +For collecting metrics via HTTP, you need to [enable the built-in webserver](https://dnsdist.org/guides/webserver.html). + + + +### Configuration + +#### File + +The configuration file name for this integration is `go.d/dnsdist.conf`. + + +You can edit the configuration file using the `edit-config` script from the +Netdata [config directory](https://github.com/netdata/netdata/blob/master/docs/netdata-agent/configuration.md#the-netdata-config-directory). + +```bash +cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata +sudo ./edit-config go.d/dnsdist.conf +``` +#### Options + +The following options can be defined globally: update_every, autodetection_retry. + + +<details><summary>Config options</summary> + +| Name | Description | Default | Required | +|:----|:-----------|:-------|:--------:| +| update_every | Data collection frequency. | 1 | no | +| autodetection_retry | Recheck interval in seconds. Zero means no recheck will be scheduled. | 0 | no | +| url | Server URL. | http://127.0.0.1:8083 | yes | +| username | Username for basic HTTP authentication. | | no | +| password | Password for basic HTTP authentication. | | no | +| proxy_url | Proxy URL. | | no | +| proxy_username | Username for proxy basic HTTP authentication. | | no | +| proxy_password | Password for proxy basic HTTP authentication. | | no | +| timeout | HTTP request timeout. | 1 | no | +| method | HTTP request method. | GET | no | +| body | HTTP request body. | | no | +| headers | HTTP request headers. | | no | +| not_follow_redirects | Redirect handling policy. Controls whether the client follows redirects. | no | no | +| tls_skip_verify | Server certificate chain and hostname validation policy. Controls whether the client performs this check. | no | no | +| tls_ca | Certification authority that the client uses when verifying the server's certificates. | | no | +| tls_cert | Client tls certificate. | | no | +| tls_key | Client tls key. | | no | + +</details> + +#### Examples + +##### Basic + +An example configuration. + +<details><summary>Config</summary> + +```yaml +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). + +``` +</details> + +##### Multi-instance + +> **Note**: When you define multiple jobs, their names must be unique. + +Collecting metrics from local and remote instances. + + +<details><summary>Config</summary> + +```yaml +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' + +``` +</details> + + + +## Troubleshooting + +### Debug Mode + +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, open `netdata.conf` and look for the `plugins` setting under `[directories]`. + + ```bash + cd /usr/libexec/netdata/plugins.d/ + ``` + +- Switch to the `netdata` user. + + ```bash + sudo -u netdata -s + ``` + +- Run the `go.d.plugin` to debug the collector: + + ```bash + ./go.d.plugin -d -m dnsdist + ``` + + |