stop ping_callback

diff --git a/tornado/websocket.py b/tornado/websocket.py
index c88cc2074d8d2a50427c9490c8f802c1a03802f0..0d73626da4586a8160494da82f271c41394d273b 100644 (file)
--- a/tornado/websocket.py
+++ b/tornado/websocket.py
@@ -1285,6 +1285,9 @@ class WebSocketProtocol13(WebSocketProtocol):
             self._waiting = self.stream.io_loop.add_timeout(
                 self.stream.io_loop.time() + 5, self._abort
             )
+        if self.ping_callback:
+            self.ping_callback.stop()
+            self.ping_callback = None
 
     def is_closing(self) -> bool:
         """Return ``True`` if this connection is closing.