linux中centos7.4的去掉cups服务(man cupsd)开机自启动后,docker启动时就报这个错,用plsql连接oracle时报错12514没有listener
Jun 03 07:40:58 localhost.localdomain dockerd[10700]: time="2020-06-03T07:40:58.471935676-04:00" level=error msg="failed to get event" error="rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = \"transport: Error while dialing dial unix /run/containerd/containerd.sock: connect: connection refused\"" module=libcontainerd namespace=moby
Jun 03 07:40:58 localhost.localdomain dockerd[10700]: time="2020-06-03T07:40:58.471431070-04:00" level=error msg="failed to get event" error="rpc error: code = Unavailable desc = all SubConns are in TransientFailure, latest connection error: connection error: desc = \"transport: Error while dialing dial unix /run/containerd/containerd.sock: connect: connection refused\"" module=libcontainerd namespace=plugins.moby
docker failed killed signed exit killed

在CentOS 7.4系统中,移除cups服务开机自启动后,Docker启动时出现错误,同时使用plsql连接Oracle数据库时收到12514错误,提示没有监听器响应。Docker守护进程报告了与containerd服务通信失败的问题。
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