Timeout writing to socket when using redis-py with configured timeouts and health check

[sandeepk97]

I’m seeing intermittent TimeoutError: Timeout writing to socket when using redis-py despite setting custom timeout values and health checks.

import redis
from redis.retry import Retry
from redis.backoff import ExponentialBackoff

client = redis.Redis(
    host="my-redis-host",
    port=6379,
    socket_connect_timeout=15,
    socket_timeout=5,
    socket_keepalive=True,
    retry=Retry(ExponentialBackoff(cap=10, base=1), 25),
    retry_on_error=[ConnectionError, TimeoutError, ConnectionResetError],
    health_check_interval=5,
)

client.set("foo", "bar")  # fails here

Observed behavior

Connection succeeds sometimes.

Some requests fail with:

Timeout writing to socket

Expected behavior
With the above retry/backoff + timeouts, I expect the client to automatically handle transient network issues instead of failing with write socket timeouts.

[petyaslavova]

Hi @sandeepk97, thanks for reporting this!
Could you share a bit more about your setup—for example, the client version and the Redis deployment type?

With this configuration, the client should attempt to execute the command 25 times before ultimately raising the final error. Do you think it actually tried all 25 times and failed, or do you suspect that the command execution isn’t being retried at all?