diff options
| -rw-r--r-- | changelog.d/9725.bugfix | 1 | ||||
| -rw-r--r-- | synapse/storage/databases/main/media_repository.py | 21 | ||||
| -rw-r--r-- | synapse/storage/databases/main/schema/delta/59/11drop_thumbnail_constraint.sql.postgres | 22 |
3 files changed, 41 insertions, 3 deletions
diff --git a/changelog.d/9725.bugfix b/changelog.d/9725.bugfix new file mode 100644 index 0000000000..71283685c8 --- /dev/null +++ b/changelog.d/9725.bugfix @@ -0,0 +1 @@ +Fix longstanding bug which caused `duplicate key value violates unique constraint "remote_media_cache_thumbnails_media_origin_media_id_thumbna_key"` errors. diff --git a/synapse/storage/databases/main/media_repository.py b/synapse/storage/databases/main/media_repository.py index 4f3d192562..b7820ac7ff 100644 --- a/synapse/storage/databases/main/media_repository.py +++ b/synapse/storage/databases/main/media_repository.py @@ -22,6 +22,9 @@ from synapse.storage.database import DatabasePool BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD = ( "media_repository_drop_index_wo_method" ) +BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2 = ( + "media_repository_drop_index_wo_method_2" +) class MediaSortOrder(Enum): @@ -85,23 +88,35 @@ class MediaRepositoryBackgroundUpdateStore(SQLBaseStore): unique=True, ) + # the original impl of _drop_media_index_without_method was broken (see + # https://github.com/matrix-org/synapse/issues/8649), so we replace the original + # impl with a no-op and run the fixed migration as + # media_repository_drop_index_wo_method_2. + self.db_pool.updates.register_noop_background_update( + BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD + ) self.db_pool.updates.register_background_update_handler( - BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD, + BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2, self._drop_media_index_without_method, ) async def _drop_media_index_without_method(self, progress, batch_size): + """background update handler which removes the old constraints. + + Note that this is only run on postgres. + """ + def f(txn): txn.execute( "ALTER TABLE local_media_repository_thumbnails DROP CONSTRAINT IF EXISTS local_media_repository_thumbn_media_id_thumbnail_width_thum_key" ) txn.execute( - "ALTER TABLE remote_media_cache_thumbnails DROP CONSTRAINT IF EXISTS remote_media_repository_thumbn_media_id_thumbnail_width_thum_key" + "ALTER TABLE remote_media_cache_thumbnails DROP CONSTRAINT IF EXISTS remote_media_cache_thumbnails_media_origin_media_id_thumbna_key" ) await self.db_pool.runInteraction("drop_media_indices_without_method", f) await self.db_pool.updates._end_background_update( - BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD + BG_UPDATE_REMOVE_MEDIA_REPO_INDEX_WITHOUT_METHOD_2 ) return 1 diff --git a/synapse/storage/databases/main/schema/delta/59/11drop_thumbnail_constraint.sql.postgres b/synapse/storage/databases/main/schema/delta/59/11drop_thumbnail_constraint.sql.postgres new file mode 100644 index 0000000000..54c1bca3b1 --- /dev/null +++ b/synapse/storage/databases/main/schema/delta/59/11drop_thumbnail_constraint.sql.postgres @@ -0,0 +1,22 @@ +/* Copyright 2021 The Matrix.org Foundation C.I.C + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +-- drop old constraints on remote_media_cache_thumbnails +-- +-- This was originally part of 57.07, but it was done wrong, per +-- https://github.com/matrix-org/synapse/issues/8649, so we do it again. +INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES + (5911, 'media_repository_drop_index_wo_method_2', '{}', 'remote_media_repository_thumbnails_method_idx'); + |