object-expirer logs noisy tracebacks when container servers are down

[Tim Burke]

Seen in dev:

Mar 30 21:34:26 saio object-expirer: STDERR: Traceback (most recent call last):
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/greenpool.py", line 88, in _spawn_n_impl#012 func(*args, **kwargs)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/vagrant/swift/swift/common/direct_client.py", line 405, in direct_delete_container_object#012 _make_req(node, part, 'DELETE', path, headers,
Mar 30 21:34:26 saio object-expirer: STDERR: File "/vagrant/swift/swift/common/direct_client.py", line 122, in _make_req#012 conn = http_connect(ip, port, node['device'], part,
Mar 30 21:34:26 saio object-expirer: STDERR: File "/vagrant/swift/swift/common/bufferedhttp.py", line 270, in http_connect#012 return http_connect_raw(
Mar 30 21:34:26 saio object-expirer: STDERR: File "/vagrant/swift/swift/common/bufferedhttp.py", line 312, in http_connect_raw#012 conn.endheaders()
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/http/client.py", line 1301, in endheaders#012 self._send_output(message_body, encode_chunked=encode_chunked)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/http/client.py", line 1089, in _send_output#012 self.send(msg)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/http/client.py", line 1018, in send#012 self.connect()
Mar 30 21:34:26 saio object-expirer: STDERR: File "/vagrant/swift/swift/common/bufferedhttp.py", line 202, in connect#012 ret = HTTPConnection.connect(self)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/http/client.py", line 989, in connect#012 self.sock = self._create_connection(
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/socket.py", line 63, in create_connection#012 raise err
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/green/socket.py", line 53, in create_connection#012 sock.connect(sa)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/greenio/base.py", line 253, in connect#012 socket_checkerr(fd)
Mar 30 21:34:26 saio object-expirer: STDERR: File "/usr/local/lib/python3.8/dist-packages/eventlet/greenio/base.py", line 51, in socket_checkerr#012 raise socket.error(err, errno.errorcode[err])
Mar 30 21:34:26 saio object-expirer: STDERR: ConnectionRefusedError: [Errno 111] ECONNREFUSED