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docs/FAQ.md: add a question about multi-tenancy

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The question has been extracted from https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1284
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Aliaksandr Valialkin 2021-05-20 15:51:45 +03:00
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5
README.md
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@ -46,14 +46,15 @@ See [these docs](#url-format) for details. Some facts about tenants in VictoriaM
* Each `accountID` and `projectID` is identified by an arbitrary 32-bit integer in the range `[0 .. 2^32)`.
If `projectID` is missing, then it is automatically assigned to `0`. It is expected that other information about tenants
such as auth tokens, tenant names, limits, accounting, etc. is stored in a separate relational database. This database must be managed
by a separate service sitting in front of VictoriaMetrics cluster such as [vmauth](https://docs.victoriametrics.com/vmauth.html).
[Contact us](mailto:info@victoriametrics.com) if you need help with creating such a service.
by a separate service sitting in front of VictoriaMetrics cluster such as [vmauth](https://docs.victoriametrics.com/vmauth.html) or [vmgateway](https://docs.victoriametrics.com/vmgateway.html). [Contact us](mailto:info@victoriametrics.com) if you need assistance with such service.
* Tenants are automatically created when the first data point is written into the given tenant.
* Data for all the tenants is evenly spread among available `vmstorage` nodes. This guarantees even load among `vmstorage` nodes
when different tenants have different amounts of data and different query load.
* The database performance and resource usage doesn't depend on the number of tenants. It depends mostly on the total number of active time series in all the tenants. A time series is considered active if it received at least a single sample during the last hour or it has been touched by queries during the last hour.
* VictoriaMetrics doesn't support querying multiple tenants in a single request.

5
docs/Cluster-VictoriaMetrics.md
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@ -50,14 +50,15 @@ See [these docs](#url-format) for details. Some facts about tenants in VictoriaM
* Each `accountID` and `projectID` is identified by an arbitrary 32-bit integer in the range `[0 .. 2^32)`.
If `projectID` is missing, then it is automatically assigned to `0`. It is expected that other information about tenants
such as auth tokens, tenant names, limits, accounting, etc. is stored in a separate relational database. This database must be managed
by a separate service sitting in front of VictoriaMetrics cluster such as [vmauth](https://docs.victoriametrics.com/vmauth.html).
[Contact us](mailto:info@victoriametrics.com) if you need help with creating such a service.
by a separate service sitting in front of VictoriaMetrics cluster such as [vmauth](https://docs.victoriametrics.com/vmauth.html) or [vmgateway](https://docs.victoriametrics.com/vmgateway.html). [Contact us](mailto:info@victoriametrics.com) if you need assistance with such service.
* Tenants are automatically created when the first data point is written into the given tenant.
* Data for all the tenants is evenly spread among available `vmstorage` nodes. This guarantees even load among `vmstorage` nodes
when different tenants have different amounts of data and different query load.
* The database performance and resource usage doesn't depend on the number of tenants. It depends mostly on the total number of active time series in all the tenants. A time series is considered active if it received at least a single sample during the last hour or it has been touched by queries during the last hour.
* VictoriaMetrics doesn't support querying multiple tenants in a single request.

6
docs/FAQ.md
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@ -223,6 +223,8 @@ Questions about VictoriaMetrics can be asked via the following channels:
File bugs and feature requests [here](https://github.com/VictoriaMetrics/VictoriaMetrics/issues).
### Are you looking for investors?
### Where I can find information about multi-tenancy?
See more details about multi-tenancy [here](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html#multitenancy). Please note, this feature is supported only by [cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html) version of VictoriaMetrics.
Yes. [Mail us](mailto:info@victoriametrics.com) if you are interested in.