SharePoint中遇到Timeout

使用SharePoint时会遇到不止一种的timeout(即超时)错误. 如果遇到了timeout, 该怎么区分呢?

大致上SharePoint可以控制和影响的timeout地方如下:

1. SharePoint管理中心中对于文件大小的限制, 默认50M.

2. SharePoint从SQL Server读取数据块的大小上限.

Stsadm.exe –o setproperty –pn large–file–chunk–size –pv <size in bytes>

3. SharePoint对Layouts目录下的页面的executionTimeout 的限制. 注意, 这里的upload.aspx的executionTimeout需要酌情适当修改.

C:\Program Files\Common Files\Microsoft Shared\Web server extensions\12\TEMPLATE\LAYOUTS\web.config.

值得注意的是, 这个web.config中还包含对具体页面的maxRequestLength和executionTimout的不同配置. 举例:

<location path="ChangeContentTypeOptionalSettings.aspx">
<system.web>
<httpRuntime maxRequestLength="2097151" executionTimeout="3600" />
</system.web>
</location>

4. 跟站点的web.config文件中的executionTimeout设置.

C:\Inetpub\wwwroot\wss\VirtualDirectories\VirtualDirectoryFolder\web.config

5. IIS中的connection timeout.

注意SQL端对语句执行时间的限制是不会影响到SharePoint的超时设置的.

在下篇文章中, 我们来讨论一下SQL Server里的timeout设置.

6. 如果发生使用IE上传大文件会timeout, 而使用firefox浏览器上传却不会timeout的情况, 请参照这篇文章<<HTTP File Upload Operation Takes a Long Time to Complete>>来修改注册表, 从而增加使用Winsock时的发送缓冲的大小.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings

Value Name: SocketSendBufferLength

Data Type: REG_DWORD

Value Options: 16384, 24576, 32768, ... ,65536

具体选项详见文章.

Reference

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How to troubleshoot HttpException Request timed out (ASP.NET 2.0 32-bit)

http://blogs.msdn.com/b/asiatech/archive/2011/07/06/how-to-troubleshoot-httpexception-request-timed-out-asp-net-2-0-32-bit.aspx

SqlCommand.CommandTimeout Property

http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlcommand.commandtimeout.aspx

OleDbConnection.ConnectionTimeout Property

http://msdn.microsoft.com/en-us/library/system.data.oledb.oledbconnection.connectiontimeout.aspx

Error message when you try to upload a large file to a document library on a Windows SharePoint Services 3.0 site: "Request timed out"

http://support.microsoft.com/kb/925083/en-us

deployment Element (ASP.NET Settings Schema)

http://msdn.microsoft.com/en-us/library/ms228298%28v=vs.80%29.aspx