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Fix timeout error in the FastAPI frontend (#34)

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Zhuohan Li 2023-05-19 14:00:46 -06:00 committed by GitHub
parent f756799b84
commit b7955ef17b
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1 changed files with 5 additions and 2 deletions
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7
cacheflow/frontend/fastapi_frontend.py
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@ -83,7 +83,7 @@ class FastAPIServer:
self.is_server_running = True
updated_seq_groups = await self.server.step.remote()
self.is_server_running = False
# Notify the waiting coroutines that there new outputs ready.
# Notify the waiting coroutines that there are new outputs ready.
for seq_group in updated_seq_groups:
group_id = seq_group.group_id
self.running_seq_groups[group_id] = seq_group
@ -121,7 +121,10 @@ class FastAPIServer:
# Wait for new output. The group_event will be set in server_step
# when there is new output available for the sequence group.
# Added a timeout to prevent deadlock.
await asyncio.wait_for(group_event.wait(), timeout=TIMEOUT_TO_PREVENT_DEADLOCK)
try:
await asyncio.wait_for(group_event.wait(), timeout=TIMEOUT_TO_PREVENT_DEADLOCK)
except asyncio.TimeoutError:
continue
# Reset the event to wait for the next output.
group_event.clear()
# Decode and return new outputs