Ensembia/nextcloud-ng_backup
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Repository: list flat folders without a type check per entry

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Opening a repository lists index/, which holds one file per pack.
StorageBackend::list() checked every entry with is_dir(), and on a
remote storage each check is a round trip. Over SFTP to a Hetzner Storage
Box (33 ms) with a 60 GiB repository, occ backup:run (30 s steps) spent
nearly every step on these requests and uploaded 45 KiB/s; with this
change it uploads 5.8 MB/s. The cost grows with the number of packs.

index/, snapshots/, catalog/ and trash/info/ only ever hold objects:
list them with the new IBackend::listFiles(), one listing without
per-entry checks.
This commit is contained in:
Dillard Blom
2026-10-08 18:28:29 +02:00
parent 62766e1e71
commit 6bba0b59fc
9 changed files with 113 additions and 5 deletions
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lib/Repository/Repository.php
+3 -3
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@@ -92,8 +92,8 @@ final class Repository {
private function loadCatalog(?ICatalogAnchor $anchor): void {
$this->catalog = new Catalog($this->backend, $this->cipher, $this->repositoryId, $anchor);
$this->catalog->load(
fn () => array_map('basename', $this->backend->list('snapshots')),
fn () => array_map('basename', $this->backend->list('trash/info')),
fn () => array_map('basename', $this->backend->listFiles('snapshots')),
fn () => array_map('basename', $this->backend->listFiles('trash/info')),
fn () => $this->backend->list('users'));
}
@@ -643,7 +643,7 @@ final class Repository {
* @return list<string>
*/
public function listSnapshots(): array {
$present = array_flip(array_map('basename', $this->backend->list('snapshots')));
$present = array_flip(array_map('basename', $this->backend->listFiles('snapshots')));
$listed = array_keys($this->catalog->snapshots);
foreach ($listed as $id) {
if (!isset($present[$id])) {