[ovirt-users] Re: Upgrade CentOS 7 oVirt host to CentOS 8 Stream from backup file - Python error

Hi Support, The following is the problem. I am trying to upgrade a CentOS 7 oVirt host to CentOS 8 Stream with oVirt-engine backup. https://www.ovirt.org/documentation/upgrade_guide/#SHE_Upgrading_from_4-3 I perform the reset as follows: hosted-engine --deploy --restore-from-file=/path/to/backup When ansible-playbook is almost finished it gives the following error: [ INFO  ] changed: [localhost] [ INFO  ] TASK [ovirt.ovirt.hosted_engine_setup : Initialize lockspace volume] [ ERROR ] fatal: [localhost]: FAILED! => {"attempts": 5, "changed": true, "cmd": ["hosted-engine", "--reinitialize-lockspace", "--force"], "delta": "0:00:00.227640", "end": "2022-02-08 08:22:54.615 461", "msg": "non-zero return code", "rc": 1, "start": "2022-02-08 08:22:54.387821", "stderr": "Traceback (most recent call last):\n  File \"/usr/lib64/python3.6/runpy.py\", line 193, in _run_modul e_as_main\n    \"__main__\", mod_spec)\n  File \"/usr/lib64/python3.6/runpy.py\", line 85, in _run_code\n    exec(code, run_globals)\n  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_s etup/reinitialize_lockspace.py\", line 30, in <module>\n    ha_cli.reset_lockspace(force)\n  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lo ckspace\n    stats = broker.get_stats_from_storage()\n  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py\", line 148, in get_stats_from_storage\n    result = self._p roxy.get_stats()\n  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1112, in __call__\n    return self.__send(self.__name, args)\n  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1452, i n __request\n    verbose=self.__verbose\n  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1154, in request\n    return self.single_request(host, handler, request_body, verbose)\n  File \"/usr /lib64/python3.6/xmlrpc/client.py\", line 1166, in single_request\n    http_conn = self.send_request(host, handler, request_body, verbose)\n  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 12 79, in send_request\n    self.send_content(connection, request_body)\n  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1309, in send_content\n    connection.endheaders(request_body)\n  File \ "/usr/lib64/python3.6/http/client.py\", line 1268, in endheaders\n    self._send_output(message_body, encode_chunked=encode_chunked)\n  File \"/usr/lib64/python3.6/http/client.py\", line 1044, in _ send_output\n    self.send(msg)\n  File \"/usr/lib64/python3.6/http/client.py\", line 982, in send\n    self.connect()\n  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc. py\", line 76, in connect\n    self.sock.connect(base64.b16decode(self.host))\nFileNotFoundError: [Errno 2] No such file or directory", "stderr_lines": ["Traceback (most recent call last):", "  Fil e \"/usr/lib64/python3.6/runpy.py\", line 193, in _run_module_as_main", "    \"__main__\", mod_spec)", "  File \"/usr/lib64/python3.6/runpy.py\", line 85, in _run_code", "    exec(code, run_globals )", "  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_setup/reinitialize_lockspace.py\", line 30, in <module>", "    ha_cli.reset_lockspace(force)", "  File \"/usr/lib/python3.6/site-p ackages/ovirt_hosted_engine_ha/client/client.py\", line 286, in reset_lockspace", "    stats = broker.get_stats_from_storage()", "  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/li b/brokerlink.py\", line 148, in get_stats_from_storage", "    result = self._proxy.get_stats()", "  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1112, in __call__", "    return self.__send( self.__name, args)", "  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1452, in __request", "    verbose=self.__verbose", "  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1154, in requ est", "    return self.single_request(host, handler, request_body, verbose)", "  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1166, in single_request", "    http_conn = self.send_request(ho st, handler, request_body, verbose)", "  File \"/usr/lib64/python3.6/xmlrpc/client.py\", line 1279, in send_request", "    self.send_content(connection, request_body)", "  File \"/usr/lib64/python3 .6/xmlrpc/client.py\", line 1309, in send_content", "    connection.endheaders(request_body)", "  File \"/usr/lib64/python3.6/http/client.py\", line 1268, in endheaders", "    self._send_output(mes sage_body, encode_chunked=encode_chunked)", "  File \"/usr/lib64/python3.6/http/client.py\", line 1044, in _send_output", "    self.send(msg)", "  File \"/usr/lib64/python3.6/http/client.py\", line   982, in send", "    self.connect()", "  File \"/usr/lib/python3.6/site-packages/ovirt_hosted_engine_ha/lib/unixrpc.py\", line 76, in connect", "    self.sock.connect(base64.b16decode(self.host))",   "FileNotFoundError: [Errno 2] No such file or directory"], "stdout": "", "stdout_lines": []} [ ERROR ] Failed to execute stage 'Closing up': Failed executing ansible-playbook [ INFO  ] Stage: Clean up What is the problem?