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Avoid locking on restore/delete and limit concurrent requests #36465

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Merged
juliusknorr merged 3 commits into from
Feb 15, 2023
Merged

Avoid locking on restore/delete and limit concurrent requests #36465

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d925388
fix: Limit trashbin restore/delete to 2 concurrent request to avoid l…
juliusknorr Feb 1, 2023
7f913de
fix(files_trashbin): Remove unnecessary scanner logic when getting ve…
juliusknorr Feb 1, 2023
d662092
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nextcloud-command Feb 15, 2023
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fix(files_trashbin): Remove unnecessary scanner logic when getting ve… 
…rsions from trash

Signed-off-by: Julius Härtl <[email protected]>
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@juliusknorr
juliusknorr committed Feb 2, 2023
commit 7f913dec032f0f8ff83eb7c9038ac0bc40bc6d87
24 changes: 0 additions & 24 deletions apps/files_trashbin/lib/Trashbin.php
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Original file line number Diff line number Diff line change
Expand Up @@ -68,13 +68,6 @@ class Trashbin {
// unit: percentage; 50% of available disk space/quota
public const DEFAULTMAXSIZE = 50;

/**
* Whether versions have already be rescanned during this PHP request
*
* @var bool
*/
private static $scannedVersions = false;

/**
* Ensure we don't need to scan the file during the move to trash
* by triggering the scan in the pre-hook
Expand Down Expand Up @@ -980,23 +973,6 @@ private static function getVersionsFromTrash($filename, $timestamp, $user) {
/** @var \OC\Files\Storage\Storage $storage */
[$storage,] = $view->resolvePath('/');

//force rescan of versions, local storage may not have updated the cache
$waitstart = time();
while (!self::$scannedVersions) {
try {
$storage->getScanner()->scan('files_trashbin/versions');
self::$scannedVersions = true;
} catch (LockedException $e) {
/* a concurrent remove/restore from trash occurred,
* retry with a maximum wait time of approx. 15 seconds
*/
if (time() - $waitstart > 15) {
throw $e;
}
usleep(50000 + rand(0, 10000));
}
}

$pattern = \OC::$server->getDatabaseConnection()->escapeLikeParameter(basename($filename));
if ($timestamp) {
// fetch for old versions
Expand Down