[BUG] Websocket exception on harvester when plots are moved

Describe the bug This bug was already reported on b27. I’m re-creating it, and giving details on how it happened on my system.

On a server I’m running plotter + harvester (remote).

In config.yaml I have several plot_directories, including:

• /dest
• /almost-empty

The server is running a plotter with -d /dest, and from time to time - before that disk gets full - I move several plots to /almost-empty. The move is done via rsync.

While one of those moving scripts was running, the harvester crashed, and the last log shows:

05:48:52.417 daemon src.daemon.server          : INFO     Websocket exception. Closing websocket with chia_harvester code = 1006 (connection closed abnormally [internal]), no reason Traceback (most recent call last):
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 827, in transfer_data
    message = await self.read_message()
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 895, in read_message
    frame = await self.read_data_frame(max_size=self.max_size)
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 971, in read_data_frame
    frame = await self.read_frame(max_size)
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 1047, in read_frame
    frame = await Frame.read(
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/framing.py", line 105, in read
    data = await reader(2)
  File "/usr/lib/python3.8/asyncio/streams.py", line 721, in readexactly
    raise exceptions.IncompleteReadError(incomplete, n)
asyncio.exceptions.IncompleteReadError: 0 bytes read on a total of 2 expected bytes

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/panzerkunst/chia-blockchain/src/daemon/server.py", line 149, in safe_handle
    async for message in websocket:
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 439, in __aiter__
    yield await self.recv()
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 509, in recv
    await self.ensure_open()
  File "/home/panzerkunst/chia-blockchain/venv/lib/python3.8/site-packages/websockets/protocol.py", line 803, in ensure_open
    raise self.connection_closed_exc()
websockets.exceptions.ConnectionClosedError: code = 1006 (connection closed abnormally [internal]), no reason

Expected behavior The harvester can handle moving plots without crashing.

Desktop (please complete the following information):

• Chia version: 1.0rc2
• OS: Ubuntu 20.04

[mariano54]

This is hopefully now fixed by the new chiapos. We will have to confirm on the next testnet

[hoffmang9]

We think we just figured out what is going on. Will attempt to fix.