MNode 上的 upgrade-mnode 脚本失败、出现错误：无法建立新连接： errno 111 连接被拒绝

适用场景

• mNode 11.x
• mNode 12.x

问题描述

成功升级集群后， mnode-upgrade 脚本将失败 

mNodeCLI # /sf/packages/mnode/upgrade-mnode -mu <mnode user>

• 回写（最近一次调用）：
    File "setup_scripts/config_util.py", line 102, in retry_operation
  File "setup_scripts/mnode_api_client.py", line 31, in get_root_assets
  File "setup_scripts/mnode_api_client.py", line 339, in retry_on_401
  File "requests/sessions.py", line 521, in get
  File "requests_oauthlib/oauth2_session.py", line 425, in request
  File "requests/sessions.py", line 508, in request
  File "requests/sessions.py", line 618, in send
  File "requests/adapters.py", line 508, in send
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='localhost', port=443): Max retries exceeded with url: /mnode/1/assets (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb42076550>: Failed to establish a new connection: [Errno 111] Connection refused',))
[Date/Time Stamp]:[mnodecfg:69] ERROR:HTTPSConnectionPool(host='localhost', port=443): Max retries exceeded with url: /mnode/1/assets (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7fcb42076550>: Failed to establish a new connection: [Errno 111] Connection refused',))

• 脚本将执行自动清理，因此在出现故障后将不会运行任何容器。

    mNodeCLI $ sudo docker ps
    CONTAINER ID    IMAGE     COMMAND      CREATED      STATUS     PORTS      NAMES