Stop populating unused table local_invites. (#7793)

This table is no longer used, so we may as well stop populating it. Removing it
would prevent people rolling back to older releases of Synapse, so that can
happen in a future release.
This commit is contained in:
Richard van der Hoff 2020-07-07 14:20:40 +01:00 committed by GitHub
parent 67d7756fcf
commit 76dbd7b8d6
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5 changed files with 25 additions and 81 deletions

1
changelog.d/7793.misc Normal file
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@ -0,0 +1 @@
Stop populating unused table `local_invites`.

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@ -27,12 +27,7 @@ from prometheus_client import Counter
from twisted.internet import defer
import synapse.metrics
from synapse.api.constants import (
EventContentFields,
EventTypes,
Membership,
RelationTypes,
)
from synapse.api.constants import EventContentFields, EventTypes, RelationTypes
from synapse.api.room_versions import RoomVersions
from synapse.crypto.event_signing import compute_event_reference_hash
from synapse.events import EventBase # noqa: F401
@ -819,7 +814,6 @@ class PersistEventsStore:
"event_reference_hashes",
"event_search",
"event_to_state_groups",
"local_invites",
"state_events",
"rejections",
"redactions",
@ -1196,65 +1190,27 @@ class PersistEventsStore:
(event.state_key,),
)
# We update the local_invites table only if the event is "current",
# i.e., its something that has just happened. If the event is an
# outlier it is only current if its an "out of band membership",
# like a remote invite or a rejection of a remote invite.
is_new_state = not backfilled and (
not event.internal_metadata.is_outlier()
or event.internal_metadata.is_out_of_band_membership()
)
is_mine = self.is_mine_id(event.state_key)
if is_new_state and is_mine:
if event.membership == Membership.INVITE:
self.db.simple_insert_txn(
txn,
table="local_invites",
values={
"event_id": event.event_id,
"invitee": event.state_key,
"inviter": event.sender,
"room_id": event.room_id,
"stream_id": event.internal_metadata.stream_ordering,
},
)
else:
sql = (
"UPDATE local_invites SET stream_id = ?, replaced_by = ? WHERE"
" room_id = ? AND invitee = ? AND locally_rejected is NULL"
" AND replaced_by is NULL"
)
txn.execute(
sql,
(
event.internal_metadata.stream_ordering,
event.event_id,
event.room_id,
event.state_key,
),
)
# We also update the `local_current_membership` table with
# latest invite info. This will usually get updated by the
# `current_state_events` handling, unless its an outlier.
if event.internal_metadata.is_outlier():
# This should only happen for out of band memberships, so
# we add a paranoia check.
assert event.internal_metadata.is_out_of_band_membership()
self.db.simple_upsert_txn(
txn,
table="local_current_membership",
keyvalues={
"room_id": event.room_id,
"user_id": event.state_key,
},
values={
"event_id": event.event_id,
"membership": event.membership,
},
)
# We update the local_current_membership table only if the event is
# "current", i.e., its something that has just happened.
#
# This will usually get updated by the `current_state_events` handling,
# unless its an outlier, and an outlier is only "current" if it's an "out of
# band membership", like a remote invite or a rejection of a remote invite.
if (
self.is_mine_id(event.state_key)
and not backfilled
and event.internal_metadata.is_outlier()
and event.internal_metadata.is_out_of_band_membership()
):
self.db.simple_upsert_txn(
txn,
table="local_current_membership",
keyvalues={"room_id": event.room_id, "user_id": event.state_key},
values={
"event_id": event.event_id,
"membership": event.membership,
},
)
def _handle_event_relations(self, txn, event):
"""Handles inserting relation data during peristence of events
@ -1591,16 +1547,8 @@ class PersistEventsStore:
create a leave event for it.
"""
sql = (
"UPDATE local_invites SET stream_id = ?, locally_rejected = ? WHERE"
" room_id = ? AND invitee = ? AND locally_rejected is NULL"
" AND replaced_by is NULL"
)
def f(txn, stream_ordering):
txn.execute(sql, (stream_ordering, True, room_id, user_id))
# We also clear this entry from `local_current_membership`.
# Clear this entry from `local_current_membership`.
# Ideally we'd point to a leave event, but we don't have one, so
# nevermind.
self.db.simple_delete_txn(

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@ -82,10 +82,7 @@ class EventsWorkerStore(SQLBaseStore):
# We are the process in charge of generating stream ids for events,
# so instantiate ID generators based on the database
self._stream_id_gen = StreamIdGenerator(
db_conn,
"events",
"stream_ordering",
extra_tables=[("local_invites", "stream_id")],
db_conn, "events", "stream_ordering",
)
self._backfill_id_gen = StreamIdGenerator(
db_conn,

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@ -361,7 +361,6 @@ class PurgeEventsStore(StateGroupWorkerStore, SQLBaseStore):
"event_push_summary",
"pusher_throttle",
"group_summary_rooms",
"local_invites",
"room_account_data",
"room_tags",
"local_current_membership",

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@ -213,7 +213,6 @@ class PurgeRoomTestCase(unittest.HomeserverTestCase):
"event_push_summary",
"pusher_throttle",
"group_summary_rooms",
"local_invites",
"room_account_data",
"room_tags",
# "state_groups", # Current impl leaves orphaned state groups around.