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authorErik Johnston <erik@matrix.org>2022-05-10 20:43:13 +0100
committerGitHub <noreply@github.com>2022-05-10 19:43:13 +0000
commitc72d26c1e1e997e63cef1c474010a7db783f8022 (patch)
tree212afc2b3104f8bbf664c65d49fd59698864a822 /synapse/push
parentCapture the `Deferred` for request cancellation in `_AsyncResource` (#12694) (diff)
downloadsynapse-c72d26c1e1e997e63cef1c474010a7db783f8022.tar.xz
Refactor `EventContext` (#12689)
Refactor how the `EventContext` class works, with the intention of reducing the amount of state we fetch from the DB during event processing.

The idea here is to get rid of the cached `current_state_ids` and `prev_state_ids` that live in the `EventContext`, and instead defer straight to the database (and its caching). 

One change that may have a noticeable effect is that we now no longer prefill the `get_current_state_ids` cache on a state change. However, that query is relatively light, since its just a case of reading a table from the DB (unlike fetching state at an event which is more heavyweight). For deployments with workers this cache isn't even used.


Part of #12684
Diffstat (limited to 'synapse/push')
-rw-r--r--synapse/push/action_generator.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/push/action_generator.py b/synapse/push/action_generator.py
index 60758df016..730d9cd354 100644
--- a/synapse/push/action_generator.py
+++ b/synapse/push/action_generator.py
@@ -40,5 +40,9 @@ class ActionGenerator:
     async def handle_push_actions_for_event(
         self, event: EventBase, context: EventContext
     ) -> None:
+        if event.internal_metadata.is_outlier():
+            # This can happen due to out of band memberships
+            return
+
         with Measure(self.clock, "action_for_event_by_user"):
             await self.bulk_evaluator.action_for_event_by_user(event, context)