问题描述
当用户调用Web服务方法时，CPU利用率为70％到80％，例如时间12.01.00，但是在12.02.00之后的一分钟后它就会增加到数据库服务器，数据库服务器会以毫秒为单位给出响应对于该请求，我们收到此错误System.Web.HttpException（0x80004005）：请求在elmah中超时。在Web服务方法接收请求和将其发送到数据库之间存在时间差。当CPU正常时，一切都能在几秒钟内顺利运行。我不明白为什么在.net端收到的请求和发送到数据库之间发生这一小时差异。重置后iis正常工作。这只发生在生产服务器上但不在开发和UAT服务器上。
IIS版本：-8.5和sql 2012
我尝试了什么：
试图在我们首先遇到性能问题时发现我们检查数据库是否正在运行任何繁重的查询或没有。
When CPU Utilisation riches 70% to 80 % at that time when user call web service method for e.g like time 12.01.00 but it riches to database server after one minute like 12.02.00 and database server gives response in fraction of milliseconds for that request and we receive this error System.Web.HttpException (0x80004005): Request timed out in elmah .There is a time difference between receiving request at web service method and sending it to database. When CPU normal then everything works smoothly within fraction of seconds.I don't understand why this one min time difference occurring between received request at .net side and sending it to database. After reset iis every thing work normal .This happens only production server but not in development and UAT Server.
IIS version:-8.5 and sql 2012
What I have tried:
tried to find whenever we get performance issue first we check the database any heavy query is running or not.
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