Disable Redis on error?

  • [09-Feb-2024 07:41:09 UTC] RedisException: read error on connection to /var/run/redis/redis-server.sock in wp-content/object-cache.php:1918
    [09-Feb-2024 07:41:09 UTC] RedisException: socket error on read socket in wp-content/object-cache.php:559

    I configured the object cache to use phpredis with IGBINARY.

    This is my setup:
    define(‘WP_REDIS_CLIENT’,’phpredis’);
    define(‘WP_REDIS_SCHEME’, ‘unix’);
    define(‘WP_REDIS_PATH’, ‘/var/run/redis/redis-server.sock’);
    define(‘WP_REDIS_MAXTTL’, 1200);
    define(‘WP_REDIS_TIMEOUT’, 2);
    define(‘WP_REDIS_READ_TIMEOUT’, 3);
    define(‘WP_REDIS_RETRY_INTERVAL’, 50);
    define(‘WP_REDIS_IGBINARY’, true);

    It works very well, but very few requests (about twenty a day) fail me, and I don’t understand why. I tried debugging but I don’t notice any errors, maybe they are CPU load peaks…

    Is it possible to manage that if the request to connect to redis for some request does not work instead of giving an error disable REDIS for that request?

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  • Plugin Author Till Krüss

    (@tillkruess)

    read error on connection is typically a timeout of Redis Server not responding. Are you able to allocate more CPU and RAM to the Redis Server process, as well as increase the allowed connection count of Redis Server?

    Disabling Redis just for a single request is risky, that’s like disabling SQL for a single request and may lead to data corruption.

Viewing 1 replies (of 1 total)
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