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redis server went away

It feels really awkward to see "redis: uncaught exception: Redis server went away" when it was working and suddenly this message bumps up. I faced the same situation while accessing php redis but I guess it's more generic one, more related to redis. So, here are possible solutions that I am able to find and highlighting the one which really did work for me.

1. /usr/sbin/setsebool httpd_can_network_connect=1

By default, SELinux does not allow Apache to make socket connections. So, enable the connection.

2. Try to stop the redis server and restart it again.
either of these two should work:
a) redis-cli
b) redis server

3. There might be issues with switch, try to use different switch.
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