- WP_CACHE_KEY_SALT defined in MU-plugin is too late: object-cache.php (Memcached drop-in) loads before MU-plugins - Add muplugins_loaded hook: call salt_keys(DB_NAME) directly on the initialized Memcached object cache instance - Each site gets unique key prefix from its database name - Prevents cross-site cache collision when multiple WP sites share one Memcached server |
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| .. | ||
| mu-plugins | ||
| themes/dekart | ||
| test-write.tmp | ||