Unhandled QueueFull exception

[gsalgado]

What is wrong?

I've seen this a few times today while running a full node on mainnet.

   ERROR  07-17 14:06:49     service  Unexpected error in ETHPeer <Node(0xe004c043de350bdb19d7bd1c07c63f58a1921eb7385192a6c0d826dc8439be250469c7b342700bb8556e693218031b63a21309de599838edd28696a5e1436d5c@13.230.44.205:53224)>, exiting
Traceback (most recent call last):
  File "/home/salgado/src/py-evm/p2p/service.py", line 55, in run
    await self._run()
  File "/home/salgado/src/py-evm/p2p/peer.py", line 353, in _run
    self.process_msg(cmd, msg)
  File "/home/salgado/src/py-evm/p2p/peer.py", line 401, in process_msg
    self.handle_sub_proto_msg(cmd, msg)
  File "/home/salgado/src/py-evm/p2p/peer.py", line 638, in handle_sub_proto_msg
    super().handle_sub_proto_msg(cmd, msg)
  File "/home/salgado/src/py-evm/p2p/peer.py", line 393, in handle_sub_proto_msg
    subscriber.put_nowait((self, cmd, msg))
  File "/usr/lib/python3.6/asyncio/queues.py", line 149, in put_nowait
    raise QueueFull
asyncio.queues.QueueFull

I believe it's the TxPool that is not consuming the messages fast enough, because when that happened the chain syncer was requesting blocks and processing them just fine

How can it be fixed

Need to investigate