diff --git a/changelog.d/14724.misc b/changelog.d/14724.misc
new file mode 100644
index 0000000000..270e5ed188
--- /dev/null
+++ b/changelog.d/14724.misc
@@ -0,0 +1 @@
+If debug logging is enabled, log the `msgid`s of any to-device messages that are returned over `/sync`.
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 7d6a653747..4fa480262b 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -37,6 +37,7 @@ from synapse.api.presence import UserPresenceState
from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
from synapse.events import EventBase
from synapse.handlers.relations import BundledAggregations
+from synapse.logging import issue9533_logger
from synapse.logging.context import current_context
from synapse.logging.opentracing import (
SynapseTags,
@@ -1623,13 +1624,18 @@ class SyncHandler:
}
)
- logger.debug(
- "Returning %d to-device messages between %d and %d (current token: %d)",
- len(messages),
- since_stream_id,
- stream_id,
- now_token.to_device_key,
- )
+ if messages and issue9533_logger.isEnabledFor(logging.DEBUG):
+ issue9533_logger.debug(
+ "Returning to-device messages with stream_ids (%d, %d]; now: %d;"
+ " msgids: %s",
+ since_stream_id,
+ stream_id,
+ now_token.to_device_key,
+ [
+ message["content"].get(EventContentFields.TO_DEVICE_MSGID)
+ for message in messages
+ ],
+ )
sync_result_builder.now_token = now_token.copy_and_replace(
StreamKeyType.TO_DEVICE, stream_id
)
|
