为此，我正在virtualbox上的Ubuntu 20.04 VM中运行docker。
我创建了一个简单的shell脚本来杀死端口9042上运行的任何进程，然后启动我的docker-compose文件。这是有问题的脚本：
#!/bin/bash
# Check for and kill any processes running on port 9042
sudo kill -9 $(sudo lsof -t -i:9042)
# start docker-compose
docker-compose -f ./docker/docker-compose.yml up
但是，自从运行该命令以来，它使我的Docker安装完全无法响应任何形式的交互。所有docker命令将无限期挂起，直到被Ctrl + C取消为止，其他任何使用docker的系统命令（例如sudo service docker start）也将无限期挂起。
如果我尝试运行dockerd，它将失败，并显示消息failed to start daemon: pid file found, ensure docker is not running or delete /var/run/docker.pid。当我的系统报告docker没有运行时，我继续删除var/run/docker.pid。如果然后尝试再次运行dockerd，则会收到不同的错误消息：failed to start daemon: error while opening volume store metadata database: timeout。
在此阶段，某些docker命令再次开始工作。 docker version和docker help都可以工作，但仍然有报道称docker守护程序未运行。尝试在docker-compose文件上运行docker-compose up会产生以下输出：
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 387, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.8/http/client.py", line 1255, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1301, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1250, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1010, in _send_output
self.send(msg)
File "/usr/lib/python3.8/http/client.py", line 950, in send
self.connect()
File "/home/david/.local/lib/python3.8/site-packages/docker/transport/unixconn.py", line 43, in connect
sock.connect(self.unix_socket)
ConnectionRefusedError: [Errno 111] Connection refused
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
resp = conn.urlopen(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 719, in urlopen
retries = retries.increment(
File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 400, in increment
raise six.reraise(type(error), error, _stacktrace)
File "/usr/lib/python3/dist-packages/six.py", line 702, in reraise
raise value.with_traceback(tb)
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
httplib_response = self._make_request(
File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 387, in _make_request
conn.request(method, url, **httplib_request_kw)
File "/usr/lib/python3.8/http/client.py", line 1255, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1301, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1250, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib/python3.8/http/client.py", line 1010, in _send_output
self.send(msg)
File "/usr/lib/python3.8/http/client.py", line 950, in send
self.connect()
File "/home/david/.local/lib/python3.8/site-packages/docker/transport/unixconn.py", line 43, in connect
sock.connect(self.unix_socket)
urllib3.exceptions.ProtocolError: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/david/.local/lib/python3.8/site-packages/docker/api/client.py", line 205, in _retrieve_server_version
return self.version(api_version=False)["ApiVersion"]
File "/home/david/.local/lib/python3.8/site-packages/docker/api/daemon.py", line 181, in version
return self._result(self._get(url), json=True)
File "/home/david/.local/lib/python3.8/site-packages/docker/utils/decorators.py", line 46, in inner
return f(self, *args, **kwargs)
File "/home/david/.local/lib/python3.8/site-packages/docker/api/client.py", line 228, in _get
return self.get(url, **self._set_request_timeout(kwargs))
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 546, in get
return self.request('GET', url, **kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
resp = self.send(prep, **send_kwargs)
File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
r = adapter.send(request, **kwargs)
File "/usr/lib/python3/dist-packages/requests/adapters.py", line 498, in send
raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/david/.local/bin/docker-compose", line 8, in <module>
sys.exit(main())
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/main.py", line 67, in main
command()
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/main.py", line 123, in perform_command
project = project_from_options('.', options)
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/command.py", line 60, in project_from_options
return get_project(
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/command.py", line 131, in get_project
client = get_client(
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/docker_client.py", line 41, in get_client
client = docker_client(
File "/home/david/.local/lib/python3.8/site-packages/compose/cli/docker_client.py", line 170, in docker_client
client = APIClient(**kwargs)
File "/home/david/.local/lib/python3.8/site-packages/docker/api/client.py", line 188, in __init__
self._version = self._retrieve_server_version()
File "/home/david/.local/lib/python3.8/site-packages/docker/api/client.py", line 212, in _retrieve_server_version
raise DockerException(
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', ConnectionRefusedError(111, 'Connection refused'))
sudo service docker start等其他系统命令仍会无限期挂起，直到被杀死为止。
我已经尝试了该线程（Cannot connect to the Docker daemon at unix:/var/run/docker.sock. Is the docker daemon running?）和该线程（Docker commands do not respond anymore）中的每个解决方案，但没有一个起作用。
有人知道这里可能是什么问题吗？
编辑：还有几点-
docker.pid文件再次出现sudo apt-get install --reinstall docker-ce重新安装docker也挂在阶段Preparing to unpack .../docker-ce_5%3a20.10.0~1.1.beta1-0~ubuntu-focal_amd64.deb ...