From 303b40b988bc372a81fc1a3cf62d3f5d074970ff Mon Sep 17 00:00:00 2001 From: Patrick Cloke Date: Tue, 30 Aug 2022 07:15:54 -0400 Subject: [PATCH] Do not wait for background updates to complete do expire URL cache. (#13657) Media downloaded as part of a URL preview is normally deleted after two days. However, while a background database migration is running, the process is stopped. A long-running database migration can therefore cause the media store to fill up with old preview files. This logic was added in #2697 to make sure that we didn't try to run the expiry without an index on `local_media_repository.created_ts`; the original logic that needs that index was added in #2478 (in `get_url_cache_media_before`, as amended by 93247a424a5068b088567fa98b6990e47608b7cb), and is still present. Given that the background update was added before Synapse v1.0.0, just drop this check and assume the index exists. --- changelog.d/13657.bugfix | 1 + synapse/rest/media/v1/preview_url_resource.py | 4 ---- 2 files changed, 1 insertion(+), 4 deletions(-) create mode 100644 changelog.d/13657.bugfix diff --git a/changelog.d/13657.bugfix b/changelog.d/13657.bugfix new file mode 100644 index 000000000..d314d9c52 --- /dev/null +++ b/changelog.d/13657.bugfix @@ -0,0 +1 @@ +Fix a long-standing bug that downloaded media for URL previews was not deleted while database background updates were running. diff --git a/synapse/rest/media/v1/preview_url_resource.py b/synapse/rest/media/v1/preview_url_resource.py index b36c98a08..a8f6fd6b3 100644 --- a/synapse/rest/media/v1/preview_url_resource.py +++ b/synapse/rest/media/v1/preview_url_resource.py @@ -732,10 +732,6 @@ class PreviewUrlResource(DirectServeJsonResource): logger.debug("Running url preview cache expiry") - if not (await self.store.db_pool.updates.has_completed_background_updates()): - logger.debug("Still running DB updates; skipping url preview cache expiry") - return - def try_remove_parent_dirs(dirs: Iterable[str]) -> None: """Attempt to remove the given chain of parent directories