短信发送失败，并提示一下信息是什么原因？

[mgcc]

短信发送失败:The request timed out on the server. Typically this indicates the request is too expensive.(The request timed out on the server. Typically this indicates the request is too expensive.)

[xiaoxu]

你好，麻烦您提供一下 AppId。请问使用哪个 SDK 发送的短信？能否提供一下完整的日志。