This is from bitbake:

ERROR: An uncaught exception occurred in runqueue
Traceback (most recent call last):
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/hashserv/__init__.py", line 104, in create_client(addr='unix:///home/pkj/dists/cfp-master/builds/m4228/hashserve.sock', username=None, password=None):
                 bb.warn(f"create_client: {a}")
    >            c.connect_unix(*a)
             elif typ == ADDR_TYPE_WS:
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/bb/asyncrpc/client.py", line 158, in Client.connect_unix(path='/home/pkj/dists/cfp-master/builds/m4228/hashserve.sock'):
             self.loop.run_until_complete(self.client.connect_unix(path))
    >        self.loop.run_until_complete(self.client.connect())

  File "/usr/lib64/python3.10/asyncio/base_events.py", line 649, in _UnixSelectorEventLoop.run_until_complete(future=<Task finished name='Task-2' coro=<AsyncClient.connect() done, defined at /home/pkj/dists/cfp-master/poky/bitbake/lib/bb/asyncrpc/client.py:67> exception=ConnectionRefusedError(111, 'Connection refused')>):

    >        return future.result()

  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/bb/asyncrpc/client.py", line 69, in AsyncClient.connect():
             if self.socket is None:
    >            self.socket = await self._connect_sock()
                 await self.setup_connection()
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/bb/asyncrpc/client.py", line 44, in connect_sock:
                     sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM, 0)
    >                sock.connect(os.path.basename(path))
                 finally:
ConnectionRefusedError: [Errno 111] Connection refused


The above, totally unhelpful error, is actually caused by this, which is found in bitbake-cookerdaemon.log:


Traceback (most recent call last):
  File "/usr/lib64/python3.10/multiprocessing/process.py", line 314, in _bootstrap
    self.run()
  File "/usr/lib64/python3.10/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/bb/asyncrpc/serv.py", line 345, in run
    tasks = self.start()
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/hashserv/server.py", line 871, in start
    self.loop.run_until_complete(self.db_engine.create())
  File "/usr/lib64/python3.10/asyncio/base_events.py", line 649, in run_until_complete
    return future.result()
  File "/home/pkj/dists/cfp-master/poky/bitbake/lib/hashserv/sqlite.py", line 164, in create
    cursor.execute(
sqlite3.IntegrityError: UNIQUE constraint failed: unihashes_v3.id