revert(bot): ⏪ Remove heartbeat system.

payphone/bot.py

@@ -42,14 +42,6 @@ class Payphone(commands.AutoShardedBot):
     `shutdown`.
     """
 
-    heartbeat: managers.ValueProxy[int]
-    """A value proxy that connects with the main process.
-
-    It's a timestamp, updated every second and checked by the main process every 5 seconds. If the
-    timestamp hasn't been updated for the past 10 seconds, it means that the process was stuck, so
-    the shard's process is restarted.
-    """
-
     redis: aredis.Redis = aredis.Redis(host="localhost" if config.IS_DEBUG else "redis")
 
     def __init__(self) -> None:
@@ -69,12 +61,6 @@ class Payphone(commands.AutoShardedBot):
             owner_ids=[898569996949676052, 777338793803513886],
         )
 
-    @tasks.loop(seconds=5)
-    async def update_heartbeat(self) -> None:
-        """Updates the heartbeat timestamp."""
-
-        self.heartbeat.value = int(datetime.now(timezone.utc).timestamp())
-
     async def on_ready(self) -> None:
         """Initializes the bot.
 
@@ -86,8 +72,6 @@ class Payphone(commands.AutoShardedBot):
 
         await self.redis.ping()
 
-        self.update_heartbeat.start()
-
         print(f"Ready! Logged in as {self.user.display_name}.")
 
     async def on_shard_ready(self, shard_id: int) -> None:

run.py

@@ -8,7 +8,6 @@ def shard(
     shard_count: int,
     shutdown: managers.ValueProxy[bool],
     scheduled_shutdown: managers.ValueProxy[bool],
-    heartbeat: managers.ValueProxy[int]
 ) -> None:
     """Starts a new shard.
 
@@ -18,7 +17,6 @@ def shard(
         shutdown (ValueProxy[bool]): The flag for the main process to shut down all shards.
         scheduled_shutdown (ValueProxy[bool]): The flag for other shards to know the bot's gonna
           shut down soon.
-        heartbeat (ValueProxy[int]): A timestamp updated every second by the shard's process.
     """
 
     from payphone.bot import bot
@@ -28,7 +26,6 @@ def shard(
     bot.shard_count = shard_count
     bot.shutdown = shutdown
     bot.scheduled_shutdown = scheduled_shutdown
-    bot.heartbeat = heartbeat
 
     try:
         # Skip uvloop initialization, it stops tasks from running for some reason.
@@ -112,14 +109,14 @@ if __name__ == "__main__":
     manager = mp.Manager()
     shutdown = manager.Value("b", False)
     scheduled_shutdown = manager.Value("b", False)
-    heartbeats = [
-        manager.Value("i", int(datetime.now(timezone.utc).timestamp())) for i in range(shard_count)
-    ]
 
     print(f"Starting {shard_count} shard{"s" if shard_count != 1 else ""}.")
 
     ps: list[mp.Process] = [
-        mp.Process(target=shard, args=(i, shard_count, shutdown, scheduled_shutdown, heartbeats[i]))
+        mp.Process(
+            target=shard,
+            args=(i, shard_count, shutdown, scheduled_shutdown),
+        )
         for i in range(shard_count)
     ]
     flushing_p = mp.Process(target=flush_process)
@@ -151,22 +148,18 @@ if __name__ == "__main__":
                 raise ShutdownException()
 
             for i in range(shard_count):
-                is_heartbeat_updated = heartbeats[i].value > (datetime.now(timezone.utc) - timedelta(seconds=30)).timestamp()
-
-                if not ps[i].is_alive() or not is_heartbeat_updated:
                 if not ps[i].is_alive():
                     print(f"Shard {i}'s process exited. Restarting the shard...")
 
-                    else:
-                        print(f"Shard {i} did not update heartbeat. Terminating...")
-                        
-                        ps[i].terminate()
-                        ps[i].join()
-
-                        print(f"Shard {i}'s process was terminated. Restarting the shard...")
-
                     ps[i] = mp.Process(
-                        target=shard, args=(i, shard_count, shutdown, scheduled_shutdown, heartbeats[i]), name=f"payphone-shard-{i}"
+                        target=shard,
+                        args=(
+                            i,
+                            shard_count,
+                            shutdown,
+                            scheduled_shutdown,
+                        ),
+                        name=f"payphone-shard-{i}",
                     )
                     ps[i].start()