docker-compose up“UnixHTTPConnectionPool（host ='localhost'，port = None）：Pool is closed”

执行“docker-compose up”时出现以下错误。 这似乎是一个随机问题。 docker-compose的版本是“1.8.0，build f3628c7”，Linux版本是“Linux 3.10.0-327.13.1.el7.x86_64”。

ERROR: for scheduler UnixHTTPConnectionPool(host='localhost', port=None): Pool is closed. Traceback (most recent call last): File "<string>", line 3, in <module> File "compose/cli/main.py", line 61, in main File "compose/cli/main.py", line 113, in perform_command File "compose/cli/main.py", line 835, in up File "compose/project.py", line 400, in up File "compose/parallel.py", line 64, in parallel_execute requests.packages.urllib3.exceptions.ClosedPoolError: UnixHTTPConnectionPool(host='localhost', port=None): Pool is closed. 

虽然这个问题是在docker github页面中报告的，但是没有提到对这个问题的解决scheme的深入了解。 任何帮助解决这个问题表示赞赏。