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refactor: extract FanOutCommunicator and use declarative spec table (#22967)

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Liangsheng Yin
2026-04-16 15:37:19 -07:00
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parent 52f0b86f5d
commit db7a751d48
6 changed files with 161 additions and 299 deletions
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docs/advanced_features/hicache_storage_runtime_attach_detach.md
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@@ -19,8 +19,8 @@ The control path is:
1. **HTTP Server** (`python/sglang/srt/entrypoints/http_server.py`)
- Exposes `PUT /hicache/storage-backend`, `DELETE /hicache/storage-backend`, `GET /hicache/storage-backend`
2. **TokenizerManager** (`python/sglang/srt/managers/tokenizer_communicator_mixin.py`)
- Sends the request to the Scheduler via `_Communicator`
2. **TokenizerManager** (`python/sglang/srt/managers/tokenizer_control_mixin.py`)
- Sends the request to the Scheduler via `FanOutCommunicator`
3. **Scheduler** (`python/sglang/srt/managers/scheduler.py`)
- Performs a **strict idle check**
- Calls `tree_cache.attach_storage_backend(...)` / `detach_storage_backend(...)`