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document providersThrottleDuration

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mpl 2019-09-30 18:24:05 +02:00 committed by Traefiker Bot
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docs/content/providers/overview.md
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@ -39,6 +39,38 @@ Below is the list of the currently supported providers in Traefik.
The current version of Traefik doesn't support (yet) every provider. The current version of Traefik doesn't support (yet) every provider.
See the [previous version (v1.7)](https://docs.traefik.io/v1.7/) for more providers. See the [previous version (v1.7)](https://docs.traefik.io/v1.7/) for more providers.
### Configuration reload frequency
In some cases, some providers might undergo a sudden burst of changes,
which would generate a lot of configuration change events.
If Traefik took them all into account,
that would trigger a lot more configuration reloads than what is necessary,
or even useful.
In order to mitigate that, the `providers.providersThrottleDuration` option can be set.
It is the duration that Traefik waits for, after a configuration reload,
before taking into account any new configuration refresh event.
If any event arrives during that duration, only the most recent one is taken into account,
and all the previous others are dropped.
This option cannot be set per provider,
but the throttling algorithm applies independently to each of them.
It defaults to 2 seconds.
```toml tab="File (TOML)"
[providers]
providers.providersThrottleDuration = 10s
```
```yaml tab="File (YAML)"
providers:
providersThrottleDuration: 10s
```
```bash tab="CLI"
--providers.providersThrottleDuration=10s
```
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TODO (document TCP VS HTTP dynamic configuration) TODO (document TCP VS HTTP dynamic configuration)
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