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Troubleshoot Redis®* connection issues

Discover troubleshooting techniques for your Redis®* service and check out how to resolve common connection issues.

Important notes​

By default Aiven for Redis® uses SSL connections and these connections are closed automatically after 12 hours. This is not a parameter that can be changed. Aiven also sets the redis_timeout advanced parameter to 300 seconds by default.

Some Redis®* connections are closed intermittently​

When experiencing connection issues with your Redis®* service, here are some common things to check: - Some Redis®* clients do not support SSL connections. It is recommended to check the documentation for the Redis®* client being used to ensure SSL connections are supported. - If you are noticing older connections terminating, you should check to see what the value is configured for the redis_timeout advanced parameter. This parameter controls the timeout value for idle connections. Once the timeout is reached, the connection is terminated.

Methods for troubleshooting connections​

A great way to troubleshoot connection issues is to arrange for a packet capture to take place. This can be achieved with tools like Tcpdump and Wireshark. This allows you to see if connections are making it outside your network to the Aiven for Redis®* instance.

Another tool you can use to help diagnose connection issues is the Socket Statistics CLI tool which dumps socket statistics.