rm redundant cleanup task

exo/networking/manual/manual_discovery.py

@@ -22,7 +22,6 @@ class ManualDiscovery(Discovery):
     self.create_peer_handle = create_peer_handle
 
     self.listen_task = None
-    self.cleanup_task = None
     self.known_peers: Dict[str, PeerHandle] = {}
 
     self._cached_peers: Dict[str, PeerConfig] = {}
@@ -32,11 +31,9 @@ class ManualDiscovery(Discovery):
 
   async def start(self) -> None:
     self.listen_task = asyncio.create_task(self.task_find_peers_from_config())
-    self.cleanup_task = asyncio.create_task(self.task_clean_up_peers_from_config())
 
   async def stop(self) -> None:
     if self.listen_task: self.listen_task.cancel()
-    if self.cleanup_task: self.cleanup_task.cancel()
     self._file_executor.shutdown(wait=True)
 
   async def discover_peers(self, wait_for_peers: int = 0) -> List[PeerHandle]:
@@ -51,6 +48,7 @@ class ManualDiscovery(Discovery):
     if DEBUG_DISCOVERY >= 2: print("Starting task to find peers from config...")
     while True:
       peers_from_config = await self._get_peers()
+      new_known_peers = {}
       for peer_id, peer_config in peers_from_config.items():
         try:
           if DEBUG_DISCOVERY >= 2: print(f"Checking peer {peer_id=} at {peer_config.address}:{peer_config.port}")
@@ -61,29 +59,15 @@ class ManualDiscovery(Discovery):
           is_healthy = await peer.health_check()
           if is_healthy:
             if DEBUG_DISCOVERY >= 2: print(f"{peer_id=} at {peer_config.address}:{peer_config.port} is healthy.")
-            self.known_peers[peer_id] = peer
-          else:
-            if DEBUG_DISCOVERY >= 2: print(f"{peer_id=} at {peer_config.address}:{peer_config.port} is not healthy.")
-            self.known_peers.pop(peer_id, None)
+            new_known_peers[peer_id] = peer
+          elif DEBUG_DISCOVERY >= 2: print(f"{peer_id=} at {peer_config.address}:{peer_config.port} is not healthy. Removing.")
         except Exception as e:
           if DEBUG_DISCOVERY >= 2: print(f"Exception occured when attempting to add {peer_id=}: {e}")
+      self.known_peers = new_known_peers
       await asyncio.sleep(1.0)
 
       if DEBUG_DISCOVERY >= 2: print(f"Current known peers: {[peer.id() for peer in self.known_peers.values()]}")
 
-  async def task_clean_up_peers_from_config(self):
-    if DEBUG_DISCOVERY >= 2: print("Starting task to clean up peers from config...")
-    while True:
-      peers_from_config = await self._get_peers()
-      if peers_from_config:
-        peers_to_remove = [peer for peer in self.known_peers.keys() if peer not in peers_from_config]
-
-        for peer in peers_to_remove:
-          if DEBUG_DISCOVERY >= 2: print(f"{peer} is no longer found in the config but is currently a known peer. Removing from known peers...")
-          self.known_peers.pop(peer, None)
-
-      await asyncio.sleep(1.0)
-
   async def _get_peers(self):
     try:
       async with self._lock: