Only delay initial connection packets

src/test/regress/expected/failure_failover_to_local_execution.out

@@ -36,7 +36,7 @@ INSERT INTO failover_to_local SELECT i, i::text FROM generate_series(0,20)i;
 -- even if the connection establishment fails, Citus can
 -- failover to local exection
 SET citus.node_connection_timeout TO 400;
-SELECT citus.mitmproxy('conn.delay(500)');
+SELECT citus.mitmproxy('conn.connect_delay(500)');
  mitmproxy
 ---------------------------------------------------------------------
 
@@ -68,7 +68,7 @@ CONTEXT:  while executing command on localhost:xxxxx
 -- if the local execution is disabled, Citus does
 -- not try to fallback to local execution
 SET citus.enable_local_execution TO false;
-SELECT citus.mitmproxy('conn.delay(500)');
+SELECT citus.mitmproxy('conn.connect_delay(500)');
  mitmproxy
 ---------------------------------------------------------------------
 

src/test/regress/mitmscripts/fluent.py

@@ -115,7 +115,7 @@ class ActionsMixin:
         return self.next
 
     def connect_delay(self, timeMs):
-        self.next = DelayHandler(self.root, timeMs)
+        self.next = ConnectDelayHandler(self.root, timeMs)
         return self.next
 
 class AcceptHandler(Handler):
@@ -174,8 +174,8 @@ class CancelHandler(Handler):
         time.sleep(0.1)
         return 'done'
 
-class DelayHandler(Handler):
+class ConnectDelayHandler(Handler):
-    'Delay a packet by sleeping before deciding what to do'
+    'Delay the initial packet by sleeping before deciding what to do'
     def __init__(self, root, timeMs):
         super().__init__(root)
         self.timeMs = timeMs