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Update the thread_id right before use (in case the bg update hasn't finished) (#14222)

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This avoids running a forced-update of a null thread_id rows.

An index is added (in the background) to hopefully make this
easier in the future.
This commit is contained in:
Patrick Cloke 2022-10-18 10:55:41 -04:00 committed by GitHub
parent e440f9674a
commit dbf18f514e
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5 changed files with 112 additions and 134 deletions
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1
changelog.d/14222.feature Normal file
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@ -0,0 +1 @@
Support for thread-specific notifications & receipts ([MSC3771](https://github.com/matrix-org/matrix-spec-proposals/pull/3771) and [MSC3773](https://github.com/matrix-org/matrix-spec-proposals/pull/3773)).

103
synapse/storage/databases/main/event_push_actions.py
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@ -294,6 +294,44 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
self._background_backfill_thread_id,
)
# Indexes which will be used to quickly make the thread_id column non-null.
self.db_pool.updates.register_background_index_update(
"event_push_actions_thread_id_null",
index_name="event_push_actions_thread_id_null",
table="event_push_actions",
columns=["thread_id"],
where_clause="thread_id IS NULL",
)
self.db_pool.updates.register_background_index_update(
"event_push_summary_thread_id_null",
index_name="event_push_summary_thread_id_null",
table="event_push_summary",
columns=["thread_id"],
where_clause="thread_id IS NULL",
)
# Check ASAP (and then later, every 1s) to see if we have finished
# background updates the event_push_actions and event_push_summary tables.
self._clock.call_later(0.0, self._check_event_push_backfill_thread_id)
self._event_push_backfill_thread_id_done = False
@wrap_as_background_process("check_event_push_backfill_thread_id")
async def _check_event_push_backfill_thread_id(self) -> None:
"""
Has thread_id finished backfilling?
If not, we need to just-in-time update it so the queries work.
"""
done = await self.db_pool.updates.has_completed_background_update(
"event_push_backfill_thread_id"
)
if done:
self._event_push_backfill_thread_id_done = True
else:
# Reschedule to run.
self._clock.call_later(15.0, self._check_event_push_backfill_thread_id)
async def _background_backfill_thread_id(
self, progress: JsonDict, batch_size: int
) -> int:
@ -526,6 +564,25 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
(ReceiptTypes.READ, ReceiptTypes.READ_PRIVATE),
)
# First ensure that the existing rows have an updated thread_id field.
if not self._event_push_backfill_thread_id_done:
txn.execute(
"""
UPDATE event_push_summary
SET thread_id = ?
WHERE room_id = ? AND user_id = ? AND thread_id is NULL
""",
(MAIN_TIMELINE, room_id, user_id),
)
txn.execute(
"""
UPDATE event_push_actions
SET thread_id = ?
WHERE room_id = ? AND user_id = ? AND thread_id is NULL
""",
(MAIN_TIMELINE, room_id, user_id),
)
# First we pull the counts from the summary table.
#
# We check that `last_receipt_stream_ordering` matches the stream ordering of the
@ -1341,6 +1398,25 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
(room_id, user_id, stream_ordering, *thread_args),
)
# First ensure that the existing rows have an updated thread_id field.
if not self._event_push_backfill_thread_id_done:
txn.execute(
"""
UPDATE event_push_summary
SET thread_id = ?
WHERE room_id = ? AND user_id = ? AND thread_id is NULL
""",
(MAIN_TIMELINE, room_id, user_id),
)
txn.execute(
"""
UPDATE event_push_actions
SET thread_id = ?
WHERE room_id = ? AND user_id = ? AND thread_id is NULL
""",
(MAIN_TIMELINE, room_id, user_id),
)
# Fetch the notification counts between the stream ordering of the
# latest receipt and what was previously summarised.
unread_counts = self._get_notif_unread_count_for_user_room(
@ -1475,6 +1551,19 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
rotate_to_stream_ordering: The new maximum event stream ordering to summarise.
"""
# Ensure that any new actions have an updated thread_id.
if not self._event_push_backfill_thread_id_done:
txn.execute(
"""
UPDATE event_push_actions
SET thread_id = ?
WHERE ? < stream_ordering AND stream_ordering <= ? AND thread_id IS NULL
""",
(MAIN_TIMELINE, old_rotate_stream_ordering, rotate_to_stream_ordering),
)
# XXX Do we need to update summaries here too?
# Calculate the new counts that should be upserted into event_push_summary
sql = """
SELECT user_id, room_id, thread_id,
@ -1537,6 +1626,20 @@ class EventPushActionsWorkerStore(ReceiptsWorkerStore, StreamWorkerStore, SQLBas
logger.info("Rotating notifications, handling %d rows", len(summaries))
# Ensure that any updated threads have the proper thread_id.
if not self._event_push_backfill_thread_id_done:
txn.execute_batch(
"""
UPDATE event_push_summary
SET thread_id = ?
WHERE room_id = ? AND user_id = ? AND thread_id is NULL
""",
[
(MAIN_TIMELINE, room_id, user_id)
for user_id, room_id, _ in summaries
],
)
self.db_pool.simple_upsert_many_txn(
txn,
table="event_push_summary",

29
synapse/storage/schema/main/delta/73/06thread_notifications_backfill.sql
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@ -1,29 +0,0 @@
/* Copyright 2022 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.
*/
-- Forces the background updates from 06thread_notifications.sql to run in the
-- foreground as code will now require those to be "done".
DELETE FROM background_updates WHERE update_name = 'event_push_backfill_thread_id';
-- Overwrite any null thread_id columns.
UPDATE event_push_actions_staging SET thread_id = 'main' WHERE thread_id IS NULL;
UPDATE event_push_actions SET thread_id = 'main' WHERE thread_id IS NULL;
UPDATE event_push_summary SET thread_id = 'main' WHERE thread_id IS NULL;
-- Do not run the event_push_summary_unique_index job if it is pending; the
-- thread_id field will be made required.
DELETE FROM background_updates WHERE update_name = 'event_push_summary_unique_index';
DROP INDEX IF EXISTS event_push_summary_unique_index;

12
synapse/storage/schema/main/delta/73/07thread_notifications_not_null.sql.postgres → synapse/storage/schema/main/delta/73/06thread_notifications_thread_id_idx.sql
View File

@ -13,7 +13,11 @@
* limitations under the License.
*/
-- The columns can now be made non-nullable.
ALTER TABLE event_push_actions_staging ALTER COLUMN thread_id SET NOT NULL;
ALTER TABLE event_push_actions ALTER COLUMN thread_id SET NOT NULL;
ALTER TABLE event_push_summary ALTER COLUMN thread_id SET NOT NULL;
-- Allow there to be multiple summaries per user/room.
DROP INDEX IF EXISTS event_push_summary_unique_index;
INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
(7306, 'event_push_actions_thread_id_null', '{}', 'event_push_backfill_thread_id');
INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
(7306, 'event_push_summary_thread_id_null', '{}', 'event_push_backfill_thread_id');

101
synapse/storage/schema/main/delta/73/07thread_notifications_not_null.sql.sqlite
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@ -1,101 +0,0 @@
/* Copyright 2022 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.
*/
-- SQLite doesn't support modifying columns to an existing table, so it must
-- be recreated.
-- Create the new tables.
CREATE TABLE event_push_actions_staging_new (
event_id TEXT NOT NULL,
user_id TEXT NOT NULL,
actions TEXT NOT NULL,
notif SMALLINT NOT NULL,
highlight SMALLINT NOT NULL,
unread SMALLINT,
thread_id TEXT NOT NULL,
inserted_ts BIGINT
);
CREATE TABLE event_push_actions_new (
room_id TEXT NOT NULL,
event_id TEXT NOT NULL,
user_id TEXT NOT NULL,
profile_tag VARCHAR(32),
actions TEXT NOT NULL,
topological_ordering BIGINT,
stream_ordering BIGINT,
notif SMALLINT,
highlight SMALLINT,
unread SMALLINT,
thread_id TEXT NOT NULL,
CONSTRAINT event_id_user_id_profile_tag_uniqueness UNIQUE (room_id, event_id, user_id, profile_tag)
);
CREATE TABLE event_push_summary_new (
user_id TEXT NOT NULL,
room_id TEXT NOT NULL,
notif_count BIGINT NOT NULL,
stream_ordering BIGINT NOT NULL,
unread_count BIGINT,
last_receipt_stream_ordering BIGINT,
thread_id TEXT NOT NULL
);
-- Swap the indexes.
DROP INDEX IF EXISTS event_push_actions_staging_id;
CREATE INDEX event_push_actions_staging_id ON event_push_actions_staging_new(event_id);
DROP INDEX IF EXISTS event_push_actions_room_id_user_id;
DROP INDEX IF EXISTS event_push_actions_rm_tokens;
DROP INDEX IF EXISTS event_push_actions_stream_ordering;
DROP INDEX IF EXISTS event_push_actions_u_highlight;
DROP INDEX IF EXISTS event_push_actions_highlights_index;
CREATE INDEX event_push_actions_room_id_user_id on event_push_actions_new(room_id, user_id);
CREATE INDEX event_push_actions_rm_tokens on event_push_actions_new( user_id, room_id, topological_ordering, stream_ordering );
CREATE INDEX event_push_actions_stream_ordering on event_push_actions_new( stream_ordering, user_id );
CREATE INDEX event_push_actions_u_highlight ON event_push_actions_new (user_id, stream_ordering);
CREATE INDEX event_push_actions_highlights_index ON event_push_actions_new (user_id, room_id, topological_ordering, stream_ordering);
-- Copy the data.
INSERT INTO event_push_actions_staging_new (event_id, user_id, actions, notif, highlight, unread, thread_id, inserted_ts)
SELECT event_id, user_id, actions, notif, highlight, unread, thread_id, inserted_ts
FROM event_push_actions_staging;
INSERT INTO event_push_actions_new (room_id, event_id, user_id, profile_tag, actions, topological_ordering, stream_ordering, notif, highlight, unread, thread_id)
SELECT room_id, event_id, user_id, profile_tag, actions, topological_ordering, stream_ordering, notif, highlight, unread, thread_id
FROM event_push_actions;
INSERT INTO event_push_summary_new (user_id, room_id, notif_count, stream_ordering, unread_count, last_receipt_stream_ordering, thread_id)
SELECT user_id, room_id, notif_count, stream_ordering, unread_count, last_receipt_stream_ordering, thread_id
FROM event_push_summary;
-- Drop the old tables.
DROP TABLE event_push_actions_staging;
DROP TABLE event_push_actions;
DROP TABLE event_push_summary;
-- Rename the tables.
ALTER TABLE event_push_actions_staging_new RENAME TO event_push_actions_staging;
ALTER TABLE event_push_actions_new RENAME TO event_push_actions;
ALTER TABLE event_push_summary_new RENAME TO event_push_summary;
-- Re-run background updates from 72/02event_push_actions_index.sql and
-- 72/06thread_notifications.sql.
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
(7307, 'event_push_summary_unique_index2', '{}')
ON CONFLICT (update_name) DO NOTHING;
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
(7307, 'event_push_actions_stream_highlight_index', '{}')
ON CONFLICT (update_name) DO NOTHING;