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authorErik Johnston <erik@matrix.org>2016-09-09 17:22:07 +0100
committerErik Johnston <erik@matrix.org>2016-09-09 17:22:07 +0100
commit44330a21e91746999995f7491d5a5e502e8e5908 (patch)
tree62b6617c13a0ea1e9f5440fb14fb80a7d2644c2e
parentCorrectly handle typing stream id resetting (diff)
downloadsynapse-44330a21e91746999995f7491d5a5e502e8e5908.tar.xz
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-rw-r--r--synapse/app/synchrotron.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/synapse/app/synchrotron.py b/synapse/app/synchrotron.py
index 07d3d047c6..dbaa48035d 100644
--- a/synapse/app/synchrotron.py
+++ b/synapse/app/synchrotron.py
@@ -242,6 +242,9 @@ class SynchrotronTyping(object):
         self._room_typing = {}
 
     def stream_positions(self):
+        # We must update this typing token from the response of the previous
+        # sync. In particular, the stream id may "reset" back to zero/a low
+        # value which we *must* use for the next replication request.
         return {"typing": self._latest_room_serial}
 
     def process_replication(self, result):