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README.md: mention about delete_series handler

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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/207
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Aliaksandr Valialkin 2019-10-10 02:09:01 +03:00
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@ -111,13 +111,13 @@ Ports may be altered by setting `-httpListenAddr` on the corresponding nodes.
### URL format
* URLs for data ingestion: `/insert/<accountID>/<suffix>`, where:
* URLs for data ingestion: `http://<vminsert>:8480/insert/<accountID>/<suffix>`, where:
- `<accountID>` is an arbitrary number identifying namespace for data ingestion (aka tenant)
- `<suffix>` may have the following values:
- `prometheus` - for inserting data with [Prometheus remote write API](https://prometheus.io/docs/prometheus/latest/configuration/configuration/#remote_write)
- `influx/write` or `influx/api/v2/write` - for inserting data with [Influx line protocol](https://docs.influxdata.com/influxdb/v1.7/write_protocols/line_protocol_tutorial/)
* URLs for querying: `/select/<accountID>/prometheus/<suffix>`, where:
* URLs for querying: `http://<vmselect>:8481/select/<accountID>/prometheus/<suffix>`, where:
- `<accountID>` is an arbitrary number identifying data namespace for the query (aka tenant)
- `<suffix>` may have the following values:
- `api/v1/query` - performs [PromQL instant query](https://prometheus.io/docs/prometheus/latest/querying/api/#instant-queries)
@ -128,6 +128,10 @@ Ports may be altered by setting `-httpListenAddr` on the corresponding nodes.
- `federate` - returns [federated metrics](https://prometheus.io/docs/prometheus/latest/federation/)
- `api/v1/export` - exports raw data. See [this article](https://medium.com/@valyala/analyzing-prometheus-data-with-external-tools-5f3e5e147639) for details
* URL for time series deletion: `http://<vmselect>:8481/delete/<accountID>/prometheus/api/v1/admin/tsdb/delete_series?match[]=<timeseries_selector_for_delete>`.
Note that the `delete_series` handler should be used only in exceptional cases such as deletion of accidentally ingested incorrect time series. It shouldn't
be used on a regular basis, since it carries non-zero overhead.
* `vmstorage` nodes provide the following HTTP endpoints on `8482` port:
- `/snapshot/create` - create [instant snapshot](https://medium.com/@valyala/how-victoriametrics-makes-instant-snapshots-for-multi-terabyte-time-series-data-e1f3fb0e0282),
which can be used for backups in background. Snapshots are created in `<storageDataPath>/snapshots` folder, where `<storageDataPath>` is the corresponding