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use an upsert to update device_lists_outbound_last_success
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commit
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4 changed files with 72 additions and 18 deletions
1
changelog.d/7429.misc
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1
changelog.d/7429.misc
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Improve performance of `mark_as_sent_devices_by_remote`.
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@ -55,6 +55,10 @@ DROP_DEVICE_LIST_STREAMS_NON_UNIQUE_INDEXES = (
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BG_UPDATE_REMOVE_DUP_OUTBOUND_POKES = "remove_dup_outbound_pokes"
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BG_UPDATE_DROP_DEVICE_LISTS_OUTBOUND_LAST_SUCCESS_NON_UNIQUE_IDX = (
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"drop_device_lists_outbound_last_success_non_unique_idx"
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)
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class DeviceWorkerStore(SQLBaseStore):
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def get_device(self, user_id, device_id):
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@ -342,32 +346,23 @@ class DeviceWorkerStore(SQLBaseStore):
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def _mark_as_sent_devices_by_remote_txn(self, txn, destination, stream_id):
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# We update the device_lists_outbound_last_success with the successfully
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# poked users. We do the join to see which users need to be inserted and
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# which updated.
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# poked users.
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sql = """
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SELECT user_id, coalesce(max(o.stream_id), 0), (max(s.stream_id) IS NOT NULL)
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SELECT user_id, coalesce(max(o.stream_id), 0)
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FROM device_lists_outbound_pokes as o
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LEFT JOIN device_lists_outbound_last_success as s
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USING (destination, user_id)
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WHERE destination = ? AND o.stream_id <= ?
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GROUP BY user_id
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"""
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txn.execute(sql, (destination, stream_id))
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rows = txn.fetchall()
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sql = """
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UPDATE device_lists_outbound_last_success
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SET stream_id = ?
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WHERE destination = ? AND user_id = ?
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"""
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txn.executemany(sql, ((row[1], destination, row[0]) for row in rows if row[2]))
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sql = """
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INSERT INTO device_lists_outbound_last_success
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(destination, user_id, stream_id) VALUES (?, ?, ?)
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"""
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txn.executemany(
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sql, ((destination, row[0], row[1]) for row in rows if not row[2])
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self.db.simple_upsert_many_txn(
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txn=txn,
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table="device_lists_outbound_last_success",
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key_names=("destination", "user_id"),
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key_values=((destination, user_id) for user_id, _ in rows),
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value_names=("stream_id",),
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value_values=((stream_id,) for _, stream_id in rows),
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)
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# Delete all sent outbound pokes
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@ -725,6 +720,21 @@ class DeviceBackgroundUpdateStore(SQLBaseStore):
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BG_UPDATE_REMOVE_DUP_OUTBOUND_POKES, self._remove_duplicate_outbound_pokes,
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)
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# create a unique index on device_lists_outbound_last_success
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self.db.updates.register_background_index_update(
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"device_lists_outbound_last_success_unique_idx",
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index_name="device_lists_outbound_last_success_unique_idx",
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table="device_lists_outbound_last_success",
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columns=["destination", "user_id"],
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unique=True,
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)
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# once that completes, we can remove the old non-unique index.
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self.db.updates.register_background_update_handler(
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BG_UPDATE_DROP_DEVICE_LISTS_OUTBOUND_LAST_SUCCESS_NON_UNIQUE_IDX,
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self._drop_device_lists_outbound_last_success_non_unique_idx,
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)
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@defer.inlineCallbacks
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def _drop_device_list_streams_non_unique_indexes(self, progress, batch_size):
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def f(conn):
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@ -799,6 +809,20 @@ class DeviceBackgroundUpdateStore(SQLBaseStore):
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return rows
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async def _drop_device_lists_outbound_last_success_non_unique_idx(
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self, progress, batch_size
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):
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def f(txn):
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txn.execute("DROP INDEX IF EXISTS device_lists_outbound_last_success_idx")
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await self.db.runInteraction(
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"drop_device_lists_outbound_last_success_non_unique_idx", f,
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)
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await self.db.updates._end_background_update(
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BG_UPDATE_DROP_DEVICE_LISTS_OUTBOUND_LAST_SUCCESS_NON_UNIQUE_IDX
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)
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return 1
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class DeviceStore(DeviceWorkerStore, DeviceBackgroundUpdateStore):
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def __init__(self, database: Database, db_conn, hs):
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@ -0,0 +1,28 @@
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/* Copyright 2020 The Matrix.org Foundation C.I.C
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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-- register a background update which will create a unique index on
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-- device_lists_outbound_last_success
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INSERT into background_updates (ordering, update_name, progress_json)
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VALUES (5804, 'device_lists_outbound_last_success_unique_idx', '{}');
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-- once that completes, we can drop the old index.
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INSERT into background_updates (ordering, update_name, progress_json, depends_on)
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VALUES (
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5804,
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'drop_device_lists_outbound_last_success_non_unique_idx',
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'{}',
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'device_lists_outbound_last_success_unique_idx'
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);
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@ -79,6 +79,7 @@ UNIQUE_INDEX_BACKGROUND_UPDATES = {
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"device_lists_remote_extremeties": "device_lists_remote_extremeties_unique_idx",
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"device_lists_remote_cache": "device_lists_remote_cache_unique_idx",
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"event_search": "event_search_event_id_idx",
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"device_lists_outbound_last_success": "device_lists_outbound_last_success_unique_idx",
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}
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