diff --git a/kafka_server/broker/controller/produce.py b/kafka_server/broker/controller/produce.py
index e470b06..46f9ebd 100644
--- a/kafka_server/broker/controller/produce.py
+++ b/kafka_server/broker/controller/produce.py
@@ -158,7 +158,6 @@ def replica_down():
 @app.route('/pull', methods=['GET'])
 def pull():
     try:
-        print("replica url", get_replica_url())
         read = Read(get_primary_partition(), get_replica_url())
         key, value = read.pull_data()
         return jsonify({'key': key, 'value': value}), 200
diff --git a/kafka_server/broker/file/segment.py b/kafka_server/broker/file/segment.py
index 2a59461..09f6a04 100644
--- a/kafka_server/broker/file/segment.py
+++ b/kafka_server/broker/file/segment.py
@@ -72,7 +72,6 @@ def approve_sync(self):
 
     def read(self):
         read_index = self.indexer.get_read()
-        print("read_index", read_index)
         segment_path = self.read_segment_path()
 
         data_file_path = os.path.join(segment_path, f'{read_index}.dat')
diff --git a/kafka_server/broker/file/write.py b/kafka_server/broker/file/write.py
index e3860ed..b5572e1 100644
--- a/kafka_server/broker/file/write.py
+++ b/kafka_server/broker/file/write.py
@@ -15,9 +15,9 @@ class Write:
     _write_lock = threading.Lock()
 
     def __new__(cls, partition: str, replica: str = None):
-        if partition not in cls._instances:
-            cls._instances[partition] = super(Write, cls).__new__(cls)
-        return cls._instances[partition]
+        if f"{partition}-{replica}" not in cls._instances:
+            cls._instances[f"{partition}-{replica}"] = super(Write, cls).__new__(cls)
+        return cls._instances[f"{partition}-{replica}"]
 
     def __init__(self, partition: str, replica: str):
         if hasattr(self, 'initialized'):
@@ -50,6 +50,10 @@ def replicate_data(self, key: str, value: bytes):
             return self.segment.approve_appending()
 
     def send_to_replica(self, key: str, value: str) -> bool:
+        if self.replica is None:
+            print("replica is None, skip it")
+            return True
+
         url = f'{self.replica}/replica/data'
         response = requests.post(
             url,