In case of loss of connection between the service and Redis, the processing of requests to the service is delayed, and an error of the type "Command timed out after 30 SECONDS" is received. Added Redis connection health checks. Issue #72
How to test:
- Choose a service with core common lib.
- Сheck service viability.
- Turn off the Radis.
- Get the result of a request to the service without errors.
- Check logs with the message "Redis connection is closed.".
Bugfix (a non-breaking change that solves an issue).