Shulou(Shulou.com)06/01 Report--

There are three web servers doing Load Balancer, and one of them is connected to redis abnormally, and the error message is as follows:

Predis Fatal Error : No sentinel server available for autodiscovery.

Looking forward, I found that there is a warning message in PHP:

PHP Warning[2]: stream_socket_client() has been disabled for security reasons

Because the program is using PHP's predis library, the connection is TCP connection, to use PHP's built-in stream_socket_client function, if the php.ini configuration file disable stream_socket_client data in disable_functions, it will cause the program to not connect to redis. After modifying the configuration file, the error disappears.

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