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28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
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---
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title: Maintenance Mode
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---
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:::info Availability
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Maintenance mode was introduced in Unleash 4.21.0.
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:::
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Unleash maintenance mode is a feature that lets administrators put Unleash into a mostly read-only mode. While Unleash is in maintenance mode:
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- Unleash users **can not change any configuration settings**
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- Unleash's APIs will not allow you to persist any changes
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However, any metrics sent to Unleash from client SDKs are still processed, so this mode does not have any effect on client SDKs.
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Maintenance mode is particularly useful during important events when any accidental or deliberate changes the feature/strategy configurations could lead to issues.
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## Maintenance mode configuration
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Maintenance mode is controlled from the "maintenance" section of the Unleash admin configuration page.
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![Maintenance mode being toggled on](/img/maintenance-config.png)
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When maintenance mode is enabled, a warning banner appears at the top of the Unleash dashboard, indicating that any changes made during this period will not be saved and may result in errors.
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![Maintenance mode banner when maintenance mod is toggled on](/img/maintenance-banner.png)
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