Hi,

We are having a strange problem with our redis elasticache instances on
AWS. We have our sessions stored in a redis cluster on AWS. Our webservers
sometimes get a:
* Error connecting to redis.example.com:6379. timed out
* Timeout reading from socket

(I haven't included our real domain for the redis servers :-))

Both of these are related to our webservers connecting to our redis server.
This started about a month ago, and worked perfectly for nearly 2 years
before that. I really don't understand why this is happening. I know that
the webservers have access to the redis servers, so I really can't
understand the problem. Has anyone else experienced a similar problem?

That was the first part of my question, my second is related to this
though. For costsaving I would really like to dump the redis cluster and
change to a dynamodb based session store. I have found a pypi package that
works for the implementation, but when I tried it about 2 years ago, it
failed miserably. We ended up having people get new sessions all the time
and the sessions weren't being persisted corrrectly (each request ended up
generating a new session).

Has anyone successfully implemented a session store on dynamodb? With 2
webservers behind an loadbalancer?

Also, has anyone any ideas of how to move the sessions from our redis store
to the dynamodb database?

Any tips / tricks would be very appreciated.

Regards,

Andréas

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