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fix(sandbox): avoid blocking sandbox readiness polling (#2822)

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* fix(sandbox): offload async sandbox acquisition

Run blocking sandbox provider acquisition through the async provider hook so eager sandbox setup does not stall the event loop.

* fix(sandbox): add async readiness polling

Introduce an async sandbox readiness poller using httpx and asyncio.sleep while preserving the existing synchronous API.

* test(sandbox): cover async readiness polling

Lock in non-blocking readiness behavior so the async helper does not regress to requests.get or time.sleep.

* fix(sandbox): allow anonymous backend creation

* fix(sandbox): use async readiness in provider acquisition

* fix(sandbox): use async acquisition for lazy tools

* test(sandbox): cover anonymous remote creation

* fix(sandbox): clamp async readiness timeout budget

* fix(sandbox): offload async lock file handling

* fix(sandbox): delegate async middleware fallthrough

* docs(sandbox): document async acquisition path

* fix(sandbox): offload async sandbox release

* docs(sandbox): mention async release hook

* fix(sandbox): address async lock review

Reduce duplicate sync/async sandbox acquisition state handling and move async thread-lock waits onto a dedicated executor with cancellation-safe cleanup.

* chore: retrigger ci

Retrigger GitHub Actions after upstream main fixed the stale PR merge lint failure.

* test(sandbox): sync backend unit fixtures

---------

Co-authored-by: Willem Jiang <willem.jiang@gmail.com>
This commit is contained in:
AochenShen99
2026-05-21 14:44:34 +08:00
committed by GitHub
parent dcc6f1e678
commit 8b697245eb
13 changed files with 1037 additions and 73 deletions
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backend/packages/harness/deerflow/sandbox/sandbox_provider.py
+11
View File
@@ -1,3 +1,4 @@
import asyncio
from abc import ABC, abstractmethod
from deerflow.config import get_app_config
@@ -19,6 +20,16 @@ class SandboxProvider(ABC):
"""
pass
async def acquire_async(self, thread_id: str | None = None) -> str:
"""Acquire a sandbox without blocking the event loop.
Most sandbox providers expose a synchronous lifecycle API because local
Docker/provisioner operations are blocking. Async runtimes should call
this method so those blocking operations run in a worker thread instead
of stalling the event loop.
"""
return await asyncio.to_thread(self.acquire, thread_id)
@abstractmethod
def get(self, sandbox_id: str) -> Sandbox | None:
"""Get a sandbox environment by ID.