[MXS-4001] The Cache filter cannot cope with the Redis server closing the connection Created: 2022-02-16  Updated: 2023-10-27  Resolved: 2022-02-18

Status: Closed
Project: MariaDB MaxScale
Component/s: cache
Affects Version/s: 2.5, 6
Fix Version/s: 2.5.20, 6.2.3

Type: Bug Priority: Major
Reporter: Johan Wikman Assignee: Johan Wikman
Resolution: Fixed Votes: 0
Labels: None

Issue Links:
Problem/Incident
causes MXS-3954 Got below signal 11 error after upgra... Closed

 Description   

If

  • Redis is used as storage for the cache,
  • Redis has been configured with an idle timeout, and
  • a client is idle for a duration longer than the Redis idle timeout,
    thereafter all cache activity performed on behalf of that client will fail with error messages like 

    2022-02-16 11:25:43   error  : [storage_redis] Failed to read reply in the context of MULTI: general error, Server closed the connection
    		 
    2022-02-16 11:25:43   error  : [storage_redis] Failed when reading response to MULTI: no error, Server closed the connection

    until the end of the session.
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