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Fix Data Lifecycle Stages docs TTL description. (#13151)

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Wan Kai 2025-03-28 13:57:15 +08:00 committed by GitHub
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docs/en/banyandb/stages.md
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@ -59,20 +59,20 @@ sequenceDiagram
Data(T0) ->> Hot Data(TTL1): Input
Hot Data(TTL1) -->+ Hot Data(TTL1): TTL1
Hot Data(TTL1) ->>- Warm Data(TTL2): Migrate
Warm Data(TTL2) -->+ Warm Data(TTL2): TTL2 - TTL1
Warm Data(TTL2) -->+ Warm Data(TTL2): TTL2
Warm Data(TTL2) ->>- Cold Data(TTL3): Migrate
Cold Data(TTL3) -->+ Cold Data(TTL3): TTL3 - TTL2
Cold Data(TTL3) -->+ Cold Data(TTL3): TTL3
Cold Data(TTL3) ->>- Deleted: Delete
Data(T0) --> Hot Data(TTL1): Live TTL1 Days
Data(T0) --> Warm Data(TTL2): Live TTL2 Days
Data(T0) --> Cold Data(TTL3): Live TTL3 Days
Data(T0) --> Warm Data(TTL2): Live TTL1+TTL2 Days
Data(T0) --> Cold Data(TTL3): Live TTL1+TTL2+TTL3 Days
```
- When the data is input, it will be stored in the hot stage and live for `TTL1` days.
- After `TTL1` days, the data will be migrated to the warm stage and live until `TTL2` days. **It means data will in this stage for (TTL2 - TTL1) days**.
- After `TTL2` days, the data will be migrated to the cold stage and live until `TTL3` days. **It means data will in this stage for (TTL3 - TTL2) days**.
- After `TTL1` days, the data will be migrated to the warm stage and live for `TTL2` days.
- After `TTL2` days, the data will be migrated to the cold stage and live for `TTL3` days.
- After `TTL3` days, the data will be deleted.
- The data will live for `TTL3` days in total.
- The data will live for `TTL1+TTL2+TTL3` days in total.
## Querying
- According to the lifecycle stages configuration, OAP will query the data from the `hot and warm` stage by default if the `warm` stage is enabled.