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Speed up get_unread_event_push_actions_by_room (#13005)

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Fixes #11887 hopefully.

The core change here is that `event_push_summary` now holds a summary of counts up until a much more recent point, meaning that the range of rows we need to count in `event_push_actions` is much smaller.

This needs two major changes:
1. When we get a receipt we need to recalculate `event_push_summary` rather than just delete it
2. The logic for deleting `event_push_actions` is now divorced from calculating `event_push_summary`.

In future it would be good to calculate `event_push_summary` while we persist a new event (it should just be a case of adding one to the relevant rows in `event_push_summary`), as that will further simplify the get counts logic and remove the need for us to periodically update `event_push_summary` in a background job.
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Erik Johnston 2022-06-15 16:17:14 +01:00 • committed by GitHub
parent 9ad2197fa7
commit 0d1d3e0708
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14 changed files with 322 additions and 151 deletions
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10
synapse/handlers/sync.py
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@ -18,7 +18,7 @@ from typing import TYPE_CHECKING, Any, Dict, FrozenSet, List, Optional, Set, Tup
import attr
from prometheus_client import Counter
from synapse.api.constants import EventTypes, Membership, ReceiptTypes
from synapse.api.constants import EventTypes, Membership
from synapse.api.filtering import FilterCollection
from synapse.api.presence import UserPresenceState
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
@ -1054,14 +1054,10 @@ class SyncHandler:
self, room_id: str, sync_config: SyncConfig
) -> NotifCounts:
with Measure(self.clock, "unread_notifs_for_room_id"):
last_unread_event_id = await self.store.get_last_receipt_event_id_for_user(
user_id=sync_config.user.to_string(),
room_id=room_id,
receipt_types=(ReceiptTypes.READ, ReceiptTypes.READ_PRIVATE),
)
return await self.store.get_unread_event_push_actions_by_room_for_user(
room_id, sync_config.user.to_string(), last_unread_event_id
room_id,
sync_config.user.to_string(),
)
async def generate_sync_result(