diff options
| -rw-r--r-- | changelog.d/7740.misc | 1 | ||||
| -rw-r--r-- | synapse/handlers/typing.py | 3 | ||||
| -rw-r--r-- | synapse/replication/tcp/streams/_base.py | 56 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/cache.py | 36 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/deviceinbox.py | 54 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/devices.py | 70 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/end_to_end_keys.py | 65 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/group_server.py | 52 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/pusher.py | 108 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/room.py | 41 | ||||
| -rw-r--r-- | synapse/storage/data_stores/main/tags.py | 45 |
11 files changed, 336 insertions, 195 deletions
diff --git a/changelog.d/7740.misc b/changelog.d/7740.misc new file mode 100644 index 0000000000..f93149502e --- /dev/null +++ b/changelog.d/7740.misc @@ -0,0 +1 @@ +Refactor getting replication updates from database. diff --git a/synapse/handlers/typing.py b/synapse/handlers/typing.py index 6c7abaa578..879c4c07c6 100644 --- a/synapse/handlers/typing.py +++ b/synapse/handlers/typing.py @@ -294,6 +294,9 @@ class TypingHandler(object): rows.sort() limited = False + # We, unusually, use a strict limit here as we have all the rows in + # memory rather than pulling them out of the database with a `LIMIT ?` + # clause. if len(rows) > limit: rows = rows[:limit] current_id = rows[-1][0] diff --git a/synapse/replication/tcp/streams/_base.py b/synapse/replication/tcp/streams/_base.py index f196eff072..9076bbe9f1 100644 --- a/synapse/replication/tcp/streams/_base.py +++ b/synapse/replication/tcp/streams/_base.py @@ -198,26 +198,6 @@ def current_token_without_instance( return lambda instance_name: current_token() -def db_query_to_update_function( - query_function: Callable[[Token, Token, int], Awaitable[List[tuple]]] -) -> UpdateFunction: - """Wraps a db query function which returns a list of rows to make it - suitable for use as an `update_function` for the Stream class - """ - - async def update_function(instance_name, from_token, upto_token, limit): - rows = await query_function(from_token, upto_token, limit) - updates = [(row[0], row[1:]) for row in rows] - limited = False - if len(updates) >= limit: - upto_token = updates[-1][0] - limited = True - - return updates, upto_token, limited - - return update_function - - def make_http_update_function(hs, stream_name: str) -> UpdateFunction: """Makes a suitable function for use as an `update_function` that queries the master process for updates. @@ -393,7 +373,7 @@ class PushersStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_pushers_stream_token), - db_query_to_update_function(store.get_all_updated_pushers_rows), + store.get_all_updated_pushers_rows, ) @@ -421,26 +401,12 @@ class CachesStream(Stream): ROW_TYPE = CachesStreamRow def __init__(self, hs): - self.store = hs.get_datastore() + store = hs.get_datastore() super().__init__( hs.get_instance_name(), - self.store.get_cache_stream_token, - self._update_function, - ) - - async def _update_function( - self, instance_name: str, from_token: int, upto_token: int, limit: int - ): - rows = await self.store.get_all_updated_caches( - instance_name, from_token, upto_token, limit + store.get_cache_stream_token, + store.get_all_updated_caches, ) - updates = [(row[0], row[1:]) for row in rows] - limited = False - if len(updates) >= limit: - upto_token = updates[-1][0] - limited = True - - return updates, upto_token, limited class PublicRoomsStream(Stream): @@ -465,7 +431,7 @@ class PublicRoomsStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_current_public_room_stream_id), - db_query_to_update_function(store.get_all_new_public_rooms), + store.get_all_new_public_rooms, ) @@ -486,7 +452,7 @@ class DeviceListsStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_device_stream_token), - db_query_to_update_function(store.get_all_device_list_changes_for_remotes), + store.get_all_device_list_changes_for_remotes, ) @@ -504,7 +470,7 @@ class ToDeviceStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_to_device_stream_token), - db_query_to_update_function(store.get_all_new_device_messages), + store.get_all_new_device_messages, ) @@ -524,7 +490,7 @@ class TagAccountDataStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_max_account_data_stream_id), - db_query_to_update_function(store.get_all_updated_tags), + store.get_all_updated_tags, ) @@ -612,7 +578,7 @@ class GroupServerStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_group_stream_token), - db_query_to_update_function(store.get_all_groups_changes), + store.get_all_groups_changes, ) @@ -630,7 +596,5 @@ class UserSignatureStream(Stream): super().__init__( hs.get_instance_name(), current_token_without_instance(store.get_device_stream_token), - db_query_to_update_function( - store.get_all_user_signature_changes_for_remotes - ), + store.get_all_user_signature_changes_for_remotes, ) diff --git a/synapse/storage/data_stores/main/cache.py b/synapse/storage/data_stores/main/cache.py index d30766e543..f39f556c20 100644 --- a/synapse/storage/data_stores/main/cache.py +++ b/synapse/storage/data_stores/main/cache.py @@ -16,7 +16,7 @@ import itertools import logging -from typing import Any, Iterable, Optional, Tuple +from typing import Any, Iterable, List, Optional, Tuple from synapse.api.constants import EventTypes from synapse.replication.tcp.streams import BackfillStream, CachesStream @@ -46,13 +46,30 @@ class CacheInvalidationWorkerStore(SQLBaseStore): async def get_all_updated_caches( self, instance_name: str, last_id: int, current_id: int, limit: int - ): - """Fetches cache invalidation rows between the two given IDs written - by the given instance. Returns at most `limit` rows. + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for caches replication stream. + + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data """ if last_id == current_id: - return [] + return [], current_id, False def get_all_updated_caches_txn(txn): # We purposefully don't bound by the current token, as we want to @@ -66,7 +83,14 @@ class CacheInvalidationWorkerStore(SQLBaseStore): LIMIT ? """ txn.execute(sql, (last_id, instance_name, limit)) - return txn.fetchall() + updates = [(row[0], row[1:]) for row in txn] + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True + + return updates, upto_token, limited return await self.db.runInteraction( "get_all_updated_caches", get_all_updated_caches_txn diff --git a/synapse/storage/data_stores/main/deviceinbox.py b/synapse/storage/data_stores/main/deviceinbox.py index 9a1178fb39..d313b9705f 100644 --- a/synapse/storage/data_stores/main/deviceinbox.py +++ b/synapse/storage/data_stores/main/deviceinbox.py @@ -14,6 +14,7 @@ # limitations under the License. import logging +from typing import List, Tuple from canonicaljson import json @@ -207,31 +208,46 @@ class DeviceInboxWorkerStore(SQLBaseStore): "delete_device_msgs_for_remote", delete_messages_for_remote_destination_txn ) - def get_all_new_device_messages(self, last_pos, current_pos, limit): - """ + async def get_all_new_device_messages( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for to device replication stream. + Args: - last_pos(int): - current_pos(int): - limit(int): + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + Returns: - A deferred list of rows from the device inbox + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data """ - if last_pos == current_pos: - return defer.succeed([]) + + if last_id == current_id: + return [], current_id, False def get_all_new_device_messages_txn(txn): # We limit like this as we might have multiple rows per stream_id, and # we want to make sure we always get all entries for any stream_id # we return. - upper_pos = min(current_pos, last_pos + limit) + upper_pos = min(current_id, last_id + limit) sql = ( "SELECT max(stream_id), user_id" " FROM device_inbox" " WHERE ? < stream_id AND stream_id <= ?" " GROUP BY user_id" ) - txn.execute(sql, (last_pos, upper_pos)) - rows = txn.fetchall() + txn.execute(sql, (last_id, upper_pos)) + updates = [(row[0], row[1:]) for row in txn] sql = ( "SELECT max(stream_id), destination" @@ -239,15 +255,21 @@ class DeviceInboxWorkerStore(SQLBaseStore): " WHERE ? < stream_id AND stream_id <= ?" " GROUP BY destination" ) - txn.execute(sql, (last_pos, upper_pos)) - rows.extend(txn) + txn.execute(sql, (last_id, upper_pos)) + updates.extend((row[0], row[1:]) for row in txn) # Order by ascending stream ordering - rows.sort() + updates.sort() - return rows + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True - return self.db.runInteraction( + return updates, upto_token, limited + + return await self.db.runInteraction( "get_all_new_device_messages", get_all_new_device_messages_txn ) diff --git a/synapse/storage/data_stores/main/devices.py b/synapse/storage/data_stores/main/devices.py index 0ff0542453..343cf9a2d5 100644 --- a/synapse/storage/data_stores/main/devices.py +++ b/synapse/storage/data_stores/main/devices.py @@ -582,32 +582,58 @@ class DeviceWorkerStore(SQLBaseStore): return set() async def get_all_device_list_changes_for_remotes( - self, from_key: int, to_key: int, limit: int, - ) -> List[Tuple[int, str]]: - """Return a list of `(stream_id, entity)` which is the combined list of - changes to devices and which destinations need to be poked. Entity is - either a user ID (starting with '@') or a remote destination. - """ + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for device lists replication stream. - # This query Does The Right Thing where it'll correctly apply the - # bounds to the inner queries. - sql = """ - SELECT stream_id, entity FROM ( - SELECT stream_id, user_id AS entity FROM device_lists_stream - UNION ALL - SELECT stream_id, destination AS entity FROM device_lists_outbound_pokes - ) AS e - WHERE ? < stream_id AND stream_id <= ? - LIMIT ? + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data """ - return await self.db.execute( + if last_id == current_id: + return [], current_id, False + + def _get_all_device_list_changes_for_remotes(txn): + # This query Does The Right Thing where it'll correctly apply the + # bounds to the inner queries. + sql = """ + SELECT stream_id, entity FROM ( + SELECT stream_id, user_id AS entity FROM device_lists_stream + UNION ALL + SELECT stream_id, destination AS entity FROM device_lists_outbound_pokes + ) AS e + WHERE ? < stream_id AND stream_id <= ? + LIMIT ? + """ + + txn.execute(sql, (last_id, current_id, limit)) + updates = [(row[0], row[1:]) for row in txn] + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True + + return updates, upto_token, limited + + return await self.db.runInteraction( "get_all_device_list_changes_for_remotes", - None, - sql, - from_key, - to_key, - limit, + _get_all_device_list_changes_for_remotes, ) @cached(max_entries=10000) diff --git a/synapse/storage/data_stores/main/end_to_end_keys.py b/synapse/storage/data_stores/main/end_to_end_keys.py index 1a0842d4b0..6c3cff82e1 100644 --- a/synapse/storage/data_stores/main/end_to_end_keys.py +++ b/synapse/storage/data_stores/main/end_to_end_keys.py @@ -14,7 +14,7 @@ # 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. -from typing import Dict, List +from typing import Dict, List, Tuple from canonicaljson import encode_canonical_json, json @@ -479,34 +479,61 @@ class EndToEndKeyWorkerStore(SQLBaseStore): return result - def get_all_user_signature_changes_for_remotes(self, from_key, to_key, limit): - """Return a list of changes from the user signature stream to notify remotes. + async def get_all_user_signature_changes_for_remotes( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for groups replication stream. + Note that the user signature stream represents when a user signs their device with their user-signing key, which is not published to other users or servers, so no `destination` is needed in the returned list. However, this is needed to poke workers. Args: - from_key (int): the stream ID to start at (exclusive) - to_key (int): the stream ID to end at (inclusive) + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. Returns: - Deferred[list[(int,str)]] a list of `(stream_id, user_id)` - """ - sql = """ - SELECT stream_id, from_user_id AS user_id - FROM user_signature_stream - WHERE ? < stream_id AND stream_id <= ? - ORDER BY stream_id ASC - LIMIT ? + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data """ - return self.db.execute( + + if last_id == current_id: + return [], current_id, False + + def _get_all_user_signature_changes_for_remotes_txn(txn): + sql = """ + SELECT stream_id, from_user_id AS user_id + FROM user_signature_stream + WHERE ? < stream_id AND stream_id <= ? + ORDER BY stream_id ASC + LIMIT ? + """ + txn.execute(sql, (last_id, current_id, limit)) + + updates = [(row[0], (row[1:])) for row in txn] + + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True + + return updates, upto_token, limited + + return await self.db.runInteraction( "get_all_user_signature_changes_for_remotes", - None, - sql, - from_key, - to_key, - limit, + _get_all_user_signature_changes_for_remotes_txn, ) diff --git a/synapse/storage/data_stores/main/group_server.py b/synapse/storage/data_stores/main/group_server.py index fb1361f1c1..4fb9f9850c 100644 --- a/synapse/storage/data_stores/main/group_server.py +++ b/synapse/storage/data_stores/main/group_server.py @@ -14,6 +14,8 @@ # See the License for the specific language governing permissions and # limitations under the License. +from typing import List, Tuple + from canonicaljson import json from twisted.internet import defer @@ -526,13 +528,35 @@ class GroupServerWorkerStore(SQLBaseStore): "get_groups_changes_for_user", _get_groups_changes_for_user_txn ) - def get_all_groups_changes(self, from_token, to_token, limit): - from_token = int(from_token) - has_changed = self._group_updates_stream_cache.has_any_entity_changed( - from_token - ) + async def get_all_groups_changes( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for groups replication stream. + + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data + """ + + last_id = int(last_id) + has_changed = self._group_updates_stream_cache.has_any_entity_changed(last_id) + if not has_changed: - return defer.succeed([]) + return [], current_id, False def _get_all_groups_changes_txn(txn): sql = """ @@ -541,13 +565,21 @@ class GroupServerWorkerStore(SQLBaseStore): WHERE ? < stream_id AND stream_id <= ? LIMIT ? """ - txn.execute(sql, (from_token, to_token, limit)) - return [ - (stream_id, group_id, user_id, gtype, json.loads(content_json)) + txn.execute(sql, (last_id, current_id, limit)) + updates = [ + (stream_id, (group_id, user_id, gtype, json.loads(content_json))) for stream_id, group_id, user_id, gtype, content_json in txn ] - return self.db.runInteraction( + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True + + return updates, upto_token, limited + + return await self.db.runInteraction( "get_all_groups_changes", _get_all_groups_changes_txn ) diff --git a/synapse/storage/data_stores/main/pusher.py b/synapse/storage/data_stores/main/pusher.py index 547b9d69cb..5461016240 100644 --- a/synapse/storage/data_stores/main/pusher.py +++ b/synapse/storage/data_stores/main/pusher.py @@ -15,7 +15,7 @@ # limitations under the License. import logging -from typing import Iterable, Iterator +from typing import Iterable, Iterator, List, Tuple from canonicaljson import encode_canonical_json, json @@ -98,77 +98,69 @@ class PusherWorkerStore(SQLBaseStore): rows = yield self.db.runInteraction("get_all_pushers", get_pushers) return rows - def get_all_updated_pushers(self, last_id, current_id, limit): - if last_id == current_id: - return defer.succeed(([], [])) - - def get_all_updated_pushers_txn(txn): - sql = ( - "SELECT id, user_name, access_token, profile_tag, kind," - " app_id, app_display_name, device_display_name, pushkey, ts," - " lang, data" - " FROM pushers" - " WHERE ? < id AND id <= ?" - " ORDER BY id ASC LIMIT ?" - ) - txn.execute(sql, (last_id, current_id, limit)) - updated = txn.fetchall() - - sql = ( - "SELECT stream_id, user_id, app_id, pushkey" - " FROM deleted_pushers" - " WHERE ? < stream_id AND stream_id <= ?" - " ORDER BY stream_id ASC LIMIT ?" - ) - txn.execute(sql, (last_id, current_id, limit)) - deleted = txn.fetchall() + async def get_all_updated_pushers_rows( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for pushers replication stream. - return updated, deleted + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. - return self.db.runInteraction( - "get_all_updated_pushers", get_all_updated_pushers_txn - ) + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. - def get_all_updated_pushers_rows(self, last_id, current_id, limit): - """Get all the pushers that have changed between the given tokens. + The token returned can be used in a subsequent call to this + function to get further updatees. - Returns: - Deferred(list(tuple)): each tuple consists of: - stream_id (str) - user_id (str) - app_id (str) - pushkey (str) - was_deleted (bool): whether the pusher was added/updated (False) - or deleted (True) + The updates are a list of 2-tuples of stream ID and the row data """ if last_id == current_id: - return defer.succeed([]) + return [], current_id, False def get_all_updated_pushers_rows_txn(txn): - sql = ( - "SELECT id, user_name, app_id, pushkey" - " FROM pushers" - " WHERE ? < id AND id <= ?" - " ORDER BY id ASC LIMIT ?" - ) + sql = """ + SELECT id, user_name, app_id, pushkey + FROM pushers + WHERE ? < id AND id <= ? + ORDER BY id ASC LIMIT ? + """ txn.execute(sql, (last_id, current_id, limit)) - results = [list(row) + [False] for row in txn] - - sql = ( - "SELECT stream_id, user_id, app_id, pushkey" - " FROM deleted_pushers" - " WHERE ? < stream_id AND stream_id <= ?" - " ORDER BY stream_id ASC LIMIT ?" - ) + updates = [ + (stream_id, (user_name, app_id, pushkey, False)) + for stream_id, user_name, app_id, pushkey in txn + ] + + sql = """ + SELECT stream_id, user_id, app_id, pushkey + FROM deleted_pushers + WHERE ? < stream_id AND stream_id <= ? + ORDER BY stream_id ASC LIMIT ? + """ txn.execute(sql, (last_id, current_id, limit)) + updates.extend( + (stream_id, (user_name, app_id, pushkey, True)) + for stream_id, user_name, app_id, pushkey in txn + ) + + updates.sort() # Sort so that they're ordered by stream id - results.extend(list(row) + [True] for row in txn) - results.sort() # Sort so that they're ordered by stream id + limited = False + upper_bound = current_id + if len(updates) >= limit: + limited = True + upper_bound = updates[-1][0] - return results + return updates, upper_bound, limited - return self.db.runInteraction( + return await self.db.runInteraction( "get_all_updated_pushers_rows", get_all_updated_pushers_rows_txn ) diff --git a/synapse/storage/data_stores/main/room.py b/synapse/storage/data_stores/main/room.py index 13e366536a..c473cf158f 100644 --- a/synapse/storage/data_stores/main/room.py +++ b/synapse/storage/data_stores/main/room.py @@ -803,7 +803,32 @@ class RoomWorkerStore(SQLBaseStore): return total_media_quarantined - def get_all_new_public_rooms(self, prev_id, current_id, limit): + async def get_all_new_public_rooms( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for public rooms replication stream. + + Args: + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + + Returns: + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data + """ + if last_id == current_id: + return [], current_id, False + def get_all_new_public_rooms(txn): sql = """ SELECT stream_id, room_id, visibility, appservice_id, network_id @@ -813,13 +838,17 @@ class RoomWorkerStore(SQLBaseStore): LIMIT ? """ - txn.execute(sql, (prev_id, current_id, limit)) - return txn.fetchall() + txn.execute(sql, (last_id, current_id, limit)) + updates = [(row[0], row[1:]) for row in txn] + limited = False + upto_token = current_id + if len(updates) >= limit: + upto_token = updates[-1][0] + limited = True - if prev_id == current_id: - return defer.succeed([]) + return updates, upto_token, limited - return self.db.runInteraction( + return await self.db.runInteraction( "get_all_new_public_rooms", get_all_new_public_rooms ) diff --git a/synapse/storage/data_stores/main/tags.py b/synapse/storage/data_stores/main/tags.py index f8c776be3f..290317fd94 100644 --- a/synapse/storage/data_stores/main/tags.py +++ b/synapse/storage/data_stores/main/tags.py @@ -15,6 +15,7 @@ # limitations under the License. import logging +from typing import List, Tuple from canonicaljson import json @@ -53,18 +54,32 @@ class TagsWorkerStore(AccountDataWorkerStore): return deferred - @defer.inlineCallbacks - def get_all_updated_tags(self, last_id, current_id, limit): - """Get all the client tags that have changed on the server + async def get_all_updated_tags( + self, instance_name: str, last_id: int, current_id: int, limit: int + ) -> Tuple[List[Tuple[int, tuple]], int, bool]: + """Get updates for tags replication stream. + Args: - last_id(int): The position to fetch from. - current_id(int): The position to fetch up to. + instance_name: The writer we want to fetch updates from. Unused + here since there is only ever one writer. + last_id: The token to fetch updates from. Exclusive. + current_id: The token to fetch updates up to. Inclusive. + limit: The requested limit for the number of rows to return. The + function may return more or fewer rows. + Returns: - A deferred list of tuples of stream_id int, user_id string, - room_id string, tag string and content string. + A tuple consisting of: the updates, a token to use to fetch + subsequent updates, and whether we returned fewer rows than exists + between the requested tokens due to the limit. + + The token returned can be used in a subsequent call to this + function to get further updatees. + + The updates are a list of 2-tuples of stream ID and the row data """ + if last_id == current_id: - return [] + return [], current_id, False def get_all_updated_tags_txn(txn): sql = ( @@ -76,7 +91,7 @@ class TagsWorkerStore(AccountDataWorkerStore): txn.execute(sql, (last_id, current_id, limit)) return txn.fetchall() - tag_ids = yield self.db.runInteraction( + tag_ids = await self.db.runInteraction( "get_all_updated_tags", get_all_updated_tags_txn ) @@ -89,21 +104,27 @@ class TagsWorkerStore(AccountDataWorkerStore): for tag, content in txn: tags.append(json.dumps(tag) + ":" + content) tag_json = "{" + ",".join(tags) + "}" - results.append((stream_id, user_id, room_id, tag_json)) + results.append((stream_id, (user_id, room_id, tag_json))) return results batch_size = 50 results = [] for i in range(0, len(tag_ids), batch_size): - tags = yield self.db.runInteraction( + tags = await self.db.runInteraction( "get_all_updated_tag_content", get_tag_content, tag_ids[i : i + batch_size], ) results.extend(tags) - return results + limited = False + upto_token = current_id + if len(results) >= limit: + upto_token = results[-1][0] + limited = True + + return results, upto_token, limited @defer.inlineCallbacks def get_updated_tags(self, user_id, stream_id): |