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-rw-r--r--synapse/replication/tcp/commands.py18
-rw-r--r--synapse/replication/tcp/protocol.py4
-rw-r--r--synapse/replication/tcp/resource.py4
3 files changed, 15 insertions, 11 deletions
diff --git a/synapse/replication/tcp/commands.py b/synapse/replication/tcp/commands.py
index 171227cce2..12aac3cc6b 100644
--- a/synapse/replication/tcp/commands.py
+++ b/synapse/replication/tcp/commands.py
@@ -19,11 +19,13 @@ allowed to be sent by which side.
 """
 
 import logging
-import ujson as json
+import simplejson
 
 
 logger = logging.getLogger(__name__)
 
+_json_encoder = simplejson.JSONEncoder(namedtuple_as_object=False)
+
 
 class Command(object):
     """The base command class.
@@ -100,14 +102,14 @@ class RdataCommand(Command):
         return cls(
             stream_name,
             None if token == "batch" else int(token),
-            json.loads(row_json)
+            simplejson.loads(row_json)
         )
 
     def to_line(self):
         return " ".join((
             self.stream_name,
             str(self.token) if self.token is not None else "batch",
-            json.dumps(self.row),
+            _json_encoder.encode(self.row),
         ))
 
 
@@ -298,10 +300,12 @@ class InvalidateCacheCommand(Command):
     def from_line(cls, line):
         cache_func, keys_json = line.split(" ", 1)
 
-        return cls(cache_func, json.loads(keys_json))
+        return cls(cache_func, simplejson.loads(keys_json))
 
     def to_line(self):
-        return " ".join((self.cache_func, json.dumps(self.keys)))
+        return " ".join((
+            self.cache_func, _json_encoder.encode(self.keys),
+        ))
 
 
 class UserIpCommand(Command):
@@ -325,14 +329,14 @@ class UserIpCommand(Command):
     def from_line(cls, line):
         user_id, jsn = line.split(" ", 1)
 
-        access_token, ip, user_agent, device_id, last_seen = json.loads(jsn)
+        access_token, ip, user_agent, device_id, last_seen = simplejson.loads(jsn)
 
         return cls(
             user_id, access_token, ip, user_agent, device_id, last_seen
         )
 
     def to_line(self):
-        return self.user_id + " " + json.dumps((
+        return self.user_id + " " + _json_encoder.encode((
             self.access_token, self.ip, self.user_agent, self.device_id,
             self.last_seen,
         ))
diff --git a/synapse/replication/tcp/protocol.py b/synapse/replication/tcp/protocol.py
index 0a9a290af4..d7d38464b2 100644
--- a/synapse/replication/tcp/protocol.py
+++ b/synapse/replication/tcp/protocol.py
@@ -53,12 +53,12 @@ from twisted.internet import defer
 from twisted.protocols.basic import LineOnlyReceiver
 from twisted.python.failure import Failure
 
-from commands import (
+from .commands import (
     COMMAND_MAP, VALID_CLIENT_COMMANDS, VALID_SERVER_COMMANDS,
     ErrorCommand, ServerCommand, RdataCommand, PositionCommand, PingCommand,
     NameCommand, ReplicateCommand, UserSyncCommand, SyncCommand,
 )
-from streams import STREAMS_MAP
+from .streams import STREAMS_MAP
 
 from synapse.util.stringutils import random_string
 from synapse.metrics.metric import CounterMetric
diff --git a/synapse/replication/tcp/resource.py b/synapse/replication/tcp/resource.py
index 786c3fe864..a41af4fd6c 100644
--- a/synapse/replication/tcp/resource.py
+++ b/synapse/replication/tcp/resource.py
@@ -18,8 +18,8 @@
 from twisted.internet import defer, reactor
 from twisted.internet.protocol import Factory
 
-from streams import STREAMS_MAP, FederationStream
-from protocol import ServerReplicationStreamProtocol
+from .streams import STREAMS_MAP, FederationStream
+from .protocol import ServerReplicationStreamProtocol
 
 from synapse.util.metrics import Measure, measure_func