What happens if all redis nodes aren't available

[DeniVuMedi]

Hi,

I'm currently using pottery for redlock purposes with 1 redis master.
I'm aware 5 are needed to eliminate a single point of failure but as it happens I'm bound to 1 node.

My question is, what's the expected behaviour should the node fail or be unavailable?
The following will cause my code to hang forever on trying to acquire the lock:

redis = Redis.from_url("redis://wrong_url")
lock = Redlock(key="name", masters={redis})
with lock:
    print("Never prints")
print("Never prints")

I think the appropriate behaviour is to either raise an exception or skip everything covered by the lock?
Just blocking the process isn't good?

[DeniVuMedi]

Didn't mean to answer my own question but I just noticed the optional parameter raise_on_redis_errors.
Btw I couldn't figure out what context_manager_timeout does.

[raulFuzita]

if you're using Redis or StrictRedis, you should set the timeout in their respective configurations. If you're using ConnectionPool, ensure the timeout is set there instead.
You set socket_connect_timeout for initial connection and socket_timeout for commands Read/Write. It'll throw an exception when Redlock tries to stablish a connection.

Example:

import redis

redis.ConnectionPool.from_url('redis://localhost:6379/0', socket_connect_timeout=2, socket_timeout=3)
redis.StrictRedis(connection_pool=self._pool)

Redlock(key="name", masters={redis}, raise_on_redis_errors=True)