502 Bad Gateway Registered endpoint failed to handle the request

502 Bad Gateway: Registered endpoint failed to handle the request.
访问一个部署在SAP云平台上的nodejs应用时遇到上述错误消息：

查看日志，发现是nodejs应用连接SAP云平台上Redis数据库发生了错误造成的：
8 Mar 2019, 17:15:45-[APP/PROC/WEB/0]
Redis has meet with some trouble: ReplyError: Ready check failed:NOAUTH Authentication required.
OK

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