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feat(cache): Add ability for optional custom prefix for Redis/Memcached cache keys #58334

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feat(cache): Add ability for optional custom prefix for Redis/Memcached cache keys #58334

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8db48ac
Add memcache.customprefix to Cache.php
Earl0fPudding Feb 13, 2026
500bc06
Revert changes in Cache.php
Earl0fPudding Feb 17, 2026
b0b212e
Add ability to set custom cache prefix in Factory.php
Earl0fPudding Feb 17, 2026
ff93f53
Change customprefix integration to prepend the prefix hash in Factory…
Earl0fPudding Feb 18, 2026
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9 changes: 6 additions & 3 deletions lib/private/Memcache/Factory.php
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,7 @@ public function __construct(
protected function getGlobalPrefix(): string {
if ($this->globalPrefix === null) {
$config = Server::get(SystemConfig::class);
$customprefix = $config->getValue('memcache_customprefix', '');
$maintenanceMode = $config->getValue('maintenance', false);
$versions = [];
if ($config->getValue('installed', false) && !$maintenanceMode) {
Expand All @@ -131,7 +132,7 @@ protected function getGlobalPrefix(): string {
// Include instanceid in the prefix, in case multiple instances use the same cache (e.g. same FPM pool)
$instanceid = $config->getValue('instanceid');
$installedApps = implode(',', array_keys($versions)) . implode(',', array_values($versions));
$this->globalPrefix = hash('xxh128', $instanceid . $installedApps);
$this->globalPrefix = $customprefix . ($customprefix != '' ? '/' : '') . hash('xxh128', $instanceid . $installedApps);
}
return $this->globalPrefix;
}
Expand All @@ -145,9 +146,11 @@ protected function getGlobalPrefix(): string {
public function withServerVersionPrefix(\Closure $closure): void {
$backupPrefix = $this->globalPrefix;

$config = Server::get(SystemConfig::class);
$customprefix = $config->getValue('memcache_customprefix', '');
// Include instanceid in the prefix, in case multiple instances use the same cache (e.g. same FPM pool)
$instanceid = Server::get(SystemConfig::class)->getValue('instanceid');
$this->globalPrefix = hash('xxh128', $instanceid . implode('.', $this->serverVersion->getVersion()));
$instanceid = $config->getValue('instanceid');
$this->globalPrefix = $customprefix . ($customprefix != '' ? '/' : '') . hash('xxh128', $instanceid . implode('.', $this->serverVersion->getVersion()));
$closure($this);
$this->globalPrefix = $backupPrefix;
}
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