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docs: mention about Graphite render API implementation

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Aliaksandr Valialkin 2021-02-03 12:11:53 +02:00
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docs/CHANGELOG.md
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@ -22,6 +22,7 @@ in front of VictoriaMetrics. [Contact us](mailto:sales@victoriametrics.com) if y
- `vm_promscrape_discovery_retries_total`
- `vm_promscrape_scrape_retries_total`
- `vm_promscrape_service_discovery_duration_seconds`
* FEATURE: vmselect: initial implementation for [Graphite Render API](#graphite-render-api-usage).
* BUGFIX: vmagent: reduce HTTP reconnection rate for scrape targets. Previously vmagent could errorneusly close HTTP keep-alive connections more frequently than needed.
* BUGFIX: vmagent: retry scrape and service discovery requests when the remote server closes HTTP keep-alive connection. Previously `disable_keepalive: true` option could be used under `scrape_configs` section when working with such servers.

18
docs/Single-server-VictoriaMetrics.md
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@ -449,9 +449,12 @@ The `/api/v1/export` endpoint should return the following response:
Data sent to VictoriaMetrics via `Graphite plaintext protocol` may be read via the following APIs:
* [Prometheus querying API](#prometheus-querying-api-usage)
* Metric names can be explored via [Graphite metrics API](#graphite-metrics-api-usage)
* Tags can be explored via [Graphite tags API](#graphite-tags-api-usage)
* [Graphite API](#graphite-api-usage)
* [Prometheus querying API](#prometheus-querying-api-usage). Graphite metric names may special chars such as `-`, which may clash
with [MetricsQL operations](https://victoriametrics.github.io/MetricsQL.html). Such metrics can be queries via `{__name__="foo-bar.baz"}`.
VictoriaMetrics supports `__graphite__` pseudo-label for selecting time series with Graphite-compatible filters in [MetricsQL](https://victoriametrics.github.io/MetricsQL.html).
For example, `{__graphite__="foo.*.bar"}` is equivalent to `{__name__=~"foo[.][^.]*[.]bar"}`, but it works faster
and it is easier to use when migrating from Graphite to VictoriaMetrics.
* [go-graphite/carbonapi](https://github.com/go-graphite/carbonapi/blob/main/cmd/carbonapi/carbonapi.example.victoriametrics.yaml)
## How to send data from OpenTSDB-compatible agents
@ -583,8 +586,9 @@ Additionally VictoriaMetrics provides the following handlers:
## Graphite API usage
VictoriaMetrics supports the following Graphite APIs:
VictoriaMetrics supports the following Graphite APIs, which are needed for [Graphite datasource in Grafana](https://grafana.com/docs/grafana/latest/datasources/graphite/):
* Render API - see [these docs](#graphite-render-api-usage).
* Metrics API - see [these docs](#graphite-metrics-api-usage).
* Tags API - see [these docs](#graphite-tags-api-usage).
@ -593,6 +597,12 @@ For example, `{__graphite__="foo.*.bar"}` is equivalent to `{__name__=~"foo[.][^
and it is easier to use when migrating from Graphite to VictoriaMetrics.
### Graphite Render API usage
[VictoriaMetrics Enterprise](https://victoriametrics.com/enterprise.html) supports [Graphite Render API](https://graphite.readthedocs.io/en/stable/render_api.html) subset,
which is needed for [Graphite datasource in Grafana](https://grafana.com/docs/grafana/latest/datasources/graphite/).
### Graphite Metrics API usage
VictoriaMetrics supports the following handlers from [Graphite Metrics API](https://graphite-api.readthedocs.io/en/latest/api.html#the-metrics-api):