PHP FPM crash after Purge All Caches since upgrade from php 7.3 to php 8.1
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For those it may concern (users and plugin developers)…
Since we upgraded to php 8.1, we often (if not always, depending in the environment) get 502/503 errors after clicking Purge All Caches, or basically activating W3 Total Cache.
So that we need to remove the .opcache folder content on the server, then restart php-fpm, to get the website up and running again.
We found a solution here: https://stackoverflow.com/questions/66446842/what-is-causing-a-segfault-when-opcache-file-cache-is-enabled-in-a-symlink-deplo
Since we removed the
opcache.file_cache
directive, we don’t face that problem anymore.
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