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-rw-r--r--synapse/replication/tcp/client.py12
1 files changed, 7 insertions, 5 deletions
diff --git a/synapse/replication/tcp/client.py b/synapse/replication/tcp/client.py
index 5c28fd4ac3..3bbf3c3569 100644
--- a/synapse/replication/tcp/client.py
+++ b/synapse/replication/tcp/client.py
@@ -86,17 +86,19 @@ class ReplicationDataHandler:
     def __init__(self, store: BaseSlavedStore):
         self.store = store
 
-    async def on_rdata(self, stream_name: str, token: int, rows: list):
+    async def on_rdata(
+        self, stream_name: str, instance_name: str, token: int, rows: list
+    ):
         """Called to handle a batch of replication data with a given stream token.
 
         By default this just pokes the slave store. Can be overridden in subclasses to
         handle more.
 
         Args:
-            stream_name (str): name of the replication stream for this batch of rows
-            token (int): stream token for this batch of rows
-            rows (list): a list of Stream.ROW_TYPE objects as returned by
-                Stream.parse_row.
+            stream_name: name of the replication stream for this batch of rows
+            instance_name: the instance that wrote the rows.
+            token: stream token for this batch of rows
+            rows: a list of Stream.ROW_TYPE objects as returned by Stream.parse_row.
         """
         self.store.process_replication_rows(stream_name, token, rows)