From 1e315017d3c0dcde20e781fb3c87bc0e54c53cd1 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 27 Feb 2019 13:53:46 +0000
Subject: [PATCH 1/2] When presence is enabled don't send over replication

---
 synapse/federation/federation_server.py       | 3 +++
 synapse/replication/slave/storage/presence.py | 7 +++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index 569eb277a..81f3b4b1f 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -886,6 +886,9 @@ class ReplicationFederationHandlerRegistry(FederationHandlerRegistry):
     def on_edu(self, edu_type, origin, content):
         """Overrides FederationHandlerRegistry
         """
+        if not self.config.use_presence and edu_type == "m.presence":
+            return
+
         handler = self.edu_handlers.get(edu_type)
         if handler:
             return super(ReplicationFederationHandlerRegistry, self).on_edu(
diff --git a/synapse/replication/slave/storage/presence.py b/synapse/replication/slave/storage/presence.py
index 92447b00d..9e530defe 100644
--- a/synapse/replication/slave/storage/presence.py
+++ b/synapse/replication/slave/storage/presence.py
@@ -54,8 +54,11 @@ class SlavedPresenceStore(BaseSlavedStore):
 
     def stream_positions(self):
         result = super(SlavedPresenceStore, self).stream_positions()
-        position = self._presence_id_gen.get_current_token()
-        result["presence"] = position
+
+        if self.hs.config.use_presence:
+            position = self._presence_id_gen.get_current_token()
+            result["presence"] = position
+
         return result
 
     def process_replication_rows(self, stream_name, token, rows):

From 1b2940b3bde943a4c7f9fba726dc1f72befa4266 Mon Sep 17 00:00:00 2001
From: Erik Johnston <erik@matrix.org>
Date: Wed, 27 Feb 2019 13:54:45 +0000
Subject: [PATCH 2/2] Newsfile

---
 changelog.d/4757.misc | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/4757.misc

diff --git a/changelog.d/4757.misc b/changelog.d/4757.misc
new file mode 100644
index 000000000..42bb66f7a
--- /dev/null
+++ b/changelog.d/4757.misc
@@ -0,0 +1 @@
+When presence is disabled don't send over replication.