问题描述: docker.service: Failed with result 'start-limit-hit'. 解决方案: https://segmentfault.com/q/1010000002392472 概括: 如果是配置了国内镜像，并且镜像文件为/etc/docker/daemon.json，则修改文件后缀为.conf即可正常启动docker 服务
-- Subject: Unit docker.socket has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit docker.socket has begun starting up.
2月 25 10:48:13 PINK systemd[1]: Listening on Docker Socket for the API.
-- Subject: Unit docker.socket has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit docker.socket has finished starting up.
--
-- The start-up result is done.
2月 25 10:48:13 PINK systemd[1]: docker.service: Start request repeated too quickly.
2月 25 10:48:13 PINK systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit docker.service has failed.
--
-- The result is failed.
2月 25 10:48:13 PINK systemd[1]: docker.socket: Unit entered failed state.
2月 25 10:48:13 PINK systemd[1]: docker.service: Failed with result 'start-limit-hit'.
2月 25 10:48:14 PINK startLSDEfsSvr[1079]: socket error.: Protocol not supported
2月 25 10:48:17 PINK startLSDEfsSvr[1079]: socket error.: Protocol not supported