# LangGraph deployment fail because of a Redis connection issue

**URL:** <https://forum.langchain.com/t/langgraph-deployment-fail-because-of-a-redis-connection-issue/1728>\
**Category:** Deployment\
**Created:** [October 2, 2025, 10:10am UTC](https://forum.langchain.com/t/langgraph-deployment-fail-because-of-a-redis-connection-issue/1728 "2025-10-02T10:10:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![srenault](https://yyz1.discourse-cdn.com/flex007/user_avatar/forum.langchain.com/srenault/32/1164_2.png) [@srenault](https://forum.langchain.com/u/srenault)\
**Post date:** [October 2, 2025, 10:10am UTC](https://forum.langchain.com/t/langgraph-deployment-fail-because-of-a-redis-connection-issue/1728/1 "2025-10-02T10:10:56Z")

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LangGraph deployment fail because of a Redis connection issue/

02/10/2025, 11:51:50

[ERROR] Redis ping timed out Traceback (most recent call last): File “/usr/local/lib/python3.12/asyncio/tasks.py”, line 520, in wait\_for return await fut ^^^^^^^^^ File “/usr/local/lib/python3.12/site-packages/redis/asyncio/client.py”, line 672, in execute\_command conn = self.connection or await pool.get\_connection() ^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/usr/local/lib/python3.12/site-packages/redis/asyncio/connection.py”, line 1149, in get\_connection await self.ensure\_connection(connection) File “/usr/local/lib/python3.12/site-packages/redis/asyncio/connection.py”, line 1182, in ensure\_connection await connection.connect() File “/usr/local/lib/python3.12/site-packages/redis/asyncio/connection.py”, line 296, in connect await self.connect\_check\_health(check\_health=True) File “/usr/local/lib/python3.12/site-packages/redis/asyncio/connection.py”, line 305, in connect\_check\_health await self.retry.call\_with\_retry( File “/usr/local/lib/python3.12/site-packages/redis/asyncio/retry.py”, line 50, in call\_with\_retry return await do() ^^^^^^^^^^ File “/usr/local/lib/python3.12/site-packages/redis/asyncio/connection.py”, line 760, in \_connect reader, writer = await asyncio.open\_connection( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/usr/local/lib/python3.12/asyncio/streams.py”, line 48, in open\_connection transport, \_ = await loop.create\_connection( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “uvloop/loop.pyx”, line 2033, in create\_connection File “uvloop/loop.pyx”, line 2020, in uvloop.loop.Loop.create\_connection asyncio.exceptions.CancelledError The above exception was the direct cause of the following exception: Traceback (most recent call last): File “/usr/local/lib/python3.12/site-packages/langgraph\_runtime\_postgres/redis.py”, line 172, in start\_redis File “/usr/local/lib/python3.12/asyncio/tasks.py”, line 519, in wait\_for async with timeouts.timeout(timeout): ^^^^^^^^^^^^^^^^^^^^^^^^^ File “/usr/local/lib/python3.12/asyncio/timeouts.py”, line 115, in \__aexit_\_ raise TimeoutError from exc\_val TimeoutError

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**Author:** ![Josh](https://avatars.discourse-cdn.com/v4/letter/j/45deac/32.png) [@Josh](https://forum.langchain.com/u/Josh)\
**Post date:** [October 2, 2025, 1:46pm UTC](https://forum.langchain.com/t/langgraph-deployment-fail-because-of-a-redis-connection-issue/1728/2 "2025-10-02T13:46:37Z")

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Hi - sorry to hear that! We’re investigating on our side right now. Could you share the deployment ID where you saw this?