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perf(AppConfig): Cache loading the app config from the database #53868

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perf(AppConfig): Cache loading the app config from the database #53868

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8b13620
perf(Caching): Compute the global prefix without relying on AppConfig
provokateurin Jun 30, 2025
a400e74
perf(AppConfig): Cache loading the app config from the database
provokateurin Jun 24, 2025
1ea9b5f
fixup! perf(AppConfig): Cache loading the app config from the database
provokateurin Jul 14, 2025
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perf(Caching): Compute the global prefix without relying on AppConfig 
Signed-off-by: provokateurin <[email protected]>
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@provokateurin
provokateurin committed Jul 14, 2025
commit 8b136208c75f12832848033b98a1eef0f1a2864d
16 changes: 10 additions & 6 deletions lib/private/Memcache/Factory.php
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,7 @@ class Factory implements ICacheFactory {
private IProfiler $profiler;

/**
* @param Closure $globalPrefixClosure
* @param Closure(self) $globalPrefixClosure
* @param LoggerInterface $logger
* @param ?class-string<ICache> $localCacheClass
* @param ?class-string<ICache> $distributedCacheClass
Expand Down Expand Up @@ -110,7 +110,7 @@ public function __construct(

private function getGlobalPrefix(): ?string {
if (is_null($this->globalPrefix)) {
$this->globalPrefix = ($this->globalPrefixClosure)();
$this->globalPrefix = ($this->globalPrefixClosure)($this);
}
return $this->globalPrefix;
}
Expand Down Expand Up @@ -175,10 +175,14 @@ public function createDistributed(string $prefix = ''): ICache {
* @param string $prefix
* @return ICache
*/
public function createLocal(string $prefix = ''): ICache {
$globalPrefix = $this->getGlobalPrefix();
if (is_null($globalPrefix)) {
return new ArrayCache($prefix);
public function createLocal(string $prefix = '', bool $disableGlobalPrefix = false): ICache {
if ($disableGlobalPrefix) {
$globalPrefix = '';
} else {
$globalPrefix = $this->getGlobalPrefix();
if (is_null($globalPrefix)) {
return new ArrayCache($prefix);
}
}

assert($this->localCacheClass !== null);
Expand Down
46 changes: 29 additions & 17 deletions lib/private/Server.php
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Expand Up @@ -14,6 +14,7 @@
use OC\App\AppManager;
use OC\App\AppStore\Bundles\BundleFetcher;
use OC\App\AppStore\Fetcher\AppFetcher;
use OC\App\InfoParser;
use OC\AppFramework\Bootstrap\Coordinator;
use OC\AppFramework\Http\Request;
use OC\AppFramework\Http\RequestId;
Expand Down Expand Up @@ -163,7 +164,6 @@
use OCP\Files\Template\ITemplateManager;
use OCP\FilesMetadata\IFilesMetadataManager;
use OCP\FullTextSearch\IFullTextSearchManager;
use OCP\GlobalScale\IConfig;
use OCP\Group\ISubAdmin;
use OCP\Http\Client\IClientService;
use OCP\IAppConfig;
Expand Down Expand Up @@ -602,24 +602,36 @@ public function __construct($webRoot, \OC\Config $config) {
$serverVersion = $c->get(ServerVersion::class);

if ($config->getValue('installed', false) && !(defined('PHPUNIT_RUN') && PHPUNIT_RUN)) {
$logQuery = $config->getValue('log_query');
$prefixClosure = function () use ($logQuery, $serverVersion): ?string {
if (!$logQuery) {
try {
$v = \OCP\Server::get(IAppConfig::class)->getAppInstalledVersions(true);
} catch (\Doctrine\DBAL\Exception $e) {
// Database service probably unavailable
// Probably related to https://github.com/nextcloud/server/issues/37424
return null;
$prefixClosure = function (Factory $factory) use ($serverVersion): string {
// It is impossible to rely on OC_App or AppManager at this point, as they rely on the cache itself.
$appInfoFiles = [];
foreach (\OC::$APPSROOTS as $apps_dir) {
if (!is_readable($apps_dir['path'])) {
continue;
}

$dh = opendir($apps_dir['path']);
if (!is_resource($dh)) {
continue;
}

while (($file = readdir($dh)) !== false) {
if (
$file[0] !== '.'
&& is_dir($apps_dir['path'] . '/' . $file)
&& is_file($apps_dir['path'] . '/' . $file . '/appinfo/info.xml')
) {
$appInfoFiles[$file] = $apps_dir['path'] . '/' . $file . '/appinfo/info.xml';
}
}
} else {
// If the log_query is enabled, we can not get the app versions
// as that does a query, which will be logged and the logging
// depends on redis and here we are back again in the same function.
$v = [
'log_query' => 'enabled',
];
}

// We must disable the global prefix here, in order to compute the global prefix in this closure and avoid infinite recursion.
$prefixlessCache = $factory->createLocal(disableGlobalPrefix: true);

$infoParser = new InfoParser($prefixlessCache);

$v = array_map(static fn ($file): string => (string)$infoParser->parse($file)['version'], $appInfoFiles);
$v['core'] = implode(',', $serverVersion->getVersion());
$version = implode(',', array_keys($v)) . implode(',', $v);
$instanceId = \OC_Util::getInstanceId();
Expand Down