HTTP Error 503. The service is unavailable.

wincn

空间是godaddy的WIN空间,写信去了,回复说
After reviewing your inquiry, I understand that you are encountering an error message on the sites hosted under dinfang.net.

By default, our Windows hosting accounts display a generic error when applications generate an exception. We display a generic error because the detailed error messages allow a malicious user to obtain sensitive information.

To troubleshoot the error, you can modify your web.config file and specify that a custom error message displays. A custom error message helps you to locate the specific code that is causing the issue.

CAUTION: The code samples we provide below do not constitute a complete web.config file. Do not replace your existing web.config file with the code we provide. Before changing your web.config file, we recommend creating a backup.

Displaying Custom Error Messages / Enabling Detailed Errors on IIS 7


Use the sample code below to display custom error messages on IIS 7:

<configuration>
    <system.webServer>
        <httpErrors errorMode="Detailed" />
        <asp scriptErrorSentToBrowser="true"/>
    </system.webServer>
    <system.web>
        <customErrors mode="Off"/>
        <compilation debug="true"/>
    </system.web>
</configuration>


Please let us know if we can assist you in any other way.

暮木娃娃

让你使用提供的代码测试出具体错误

wincn

不会搞啊
能说详细点吗

lwbo1987

你的网站是否是IIS7，如果是，在web.config添加如下代码，查看详细的错误信息：

1. <configuration>
   
2.     <system.webServer>
   
3.         <httpErrors errorMode="Detailed" />
   
4.         <asp scriptErrorSentToBrowser="true"/>
   
5.     </system.webServer>
   
6.     <system.web>
   
7.         <customErrors mode="Off"/>
   
8.         <compilation debug="true"/>
   
9.     </system.web>
   
10. </configuration>

复制代码

暮木娃娃

GoDaddy主机500错误解决方法教程

wincn

又来回复了,意思说什么并发连接数的问题,要我升级到4GH主机,我的几个站没什么流量的,这不是逼我花钱么

看了论坛的朋友们说,4HG不支持ACC数据库,实际却是支持的,有的说支持但是很卡,我需要ACC很迷茫啊

而且没看到可以升级到4GH的选项

大家帮忙看看

I understand you need assistance with a HTTP 503 error.

This error indicates that you have reached your hosting plan's concurrent connection limit. A concurrent connection is the number of simultaneous connections available to your site. Concurrent connections are related to requests being made to your site. This would reference the number of authenticated "handshakes" between a client and/or server during any given time before all communications have been disconnected.

Things that can affect concurrent connections are requests to view website pages, file downloads and database queries. It's possible that if you have multiple requests to have a file downloaded through your site that this connection is staying open and is ultimately causing your site to think it has more traffic that it actually does. Larger files cause connections to remain open longer, while your site's visitors download them. Smaller files/text lead to shorter connections. As an example, a blog with fewer readers might perform fine with an economy account and its 50 concurrent connections. However, a blog with streaming media or a higher patronage would probably need more connections.


This is most likely caused by your site having met its maximum concurrent connection limit. Shared hosting accounts are subject to the following limits:



Linux




Linux Deluxe - 100 Concurrent Connections

Linux Unlimited - 200 Concurrent Connections



Windows




Windows Deluxe - 100 Concurrent Connections

Windows Unlimited - 150 Concurrent Connections



Our 4GH® accounts allow many more connections. As you are still using our Shared hosting plans you may want to consider a no cost upgrade to a 4GH® account. please note that as with a shared hosting plan your concurrent connection limit varies, but is set to the following minimum amounts:



Linux 4GH limits




Linux 4GH Deluxe: 300 connections or more

Linux 4GH Unlimited: 600 connections or more



Windows 4GH limits




Windows 4GH Deluxe: 300 connections or more

Windows 4GH Unlimited: 450 connections or more



MySQL connections are limited to 200 from your hosting server to the MySQL server.



MSSQL connections are limited to 100 concurrent connections.



Larger files also cause connections to remain open longer, while your site's visitors download them. Smaller files/text lead to shorter connections. As an example, a blog with fewer readers might perform fine with an economy account and its 50 concurrent connections. However, a blog with streaming media or a higher patronage would probably need more connections.



To resolve these issues, consider upgrading to a plan with a higher concurrent connection limit. See Upgrading Your Hosting Account or Upgrading to 4GH from Shared Hosting.

暮木娃娃

官方是说4GH不支持access的
Godaddy最新换系统方法图文教程

wincn

里面没有4GH的选择

暮木娃娃

截图

wincn

GD回复,意思是要先删除ACC才可以升级到4GH ???



I understand you need assistance with upgrading your hosting plan.

If you need further assistance please REPLY to this email.

Our Advanced Hosting Support has reviewed your issue and it appears that you have enabled Access databases. In order to upgrade to Grid hosting you will need to disable this option.

To Disable Access Databases




Log in to your Account Manager.

From the My Products section, click Web Hosting.

Next to the hosting account you want to use, click Launch.

In the Databases section of the Hosting Control Center, click the Access icon.

Click Remove Access Support.

Follow onscreen instructions to disable this option.


Please let us know if we can assist you in any other way.