Intermittantly losing database connection
We're getting intermitent issues with an MVC4 application. The error is "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or...
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Scalability problem using web requests initiating asynch web service requests
We are experiencing some problems in production (IIS 7.5 integrated managed pipeline mode and .NET 4.5 application) when to may of our incoming IIS requests trigger asynchronous web service requests....
View ArticleCapturing Memory / IO Presure
Hi,I have an ASP.NET 4.5 (Web API) web application hosted in IIS on Windows Server 2008 R2. This web application is hosted in it's own application pool using the Integrated pipeline.I am trying to use...
View ArticleIIS Application Pools
Hi experts,Is there any way to recycle the specific Application Pools in my IIS? I'm using ASP.NET and I want to recycle the pool when it crush. Thus it possible?Regards,
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IE double postback hangs IIS 7 in Integrated Managed pipeline mode when...
Here's my environment: IIS7 on Win 7, .NET 4, App Pool Integratedweb.config<?xml version="1.0" encoding="UTF-8"?><configuration></configuration>Test.aspx<%@ Page Language="C#"...
View ArticleIIS7 output caching
I have enbaled kernel cache..I am using "CacheForTimePeriod" policy..response from .aspx page is cached..But how do I access that cached data programmatically..???e.g- Some records from table is...
View ArticleIIS 7.5 Response Times
I have an ASP.Net 2.0 Website running in a production environment on IIS 7.5.We have recently started getting serious performance issues with the site. I have elminated most causes i.e. network and...
View ArticleLow performance in IIS
Hello, I have a problem with the IIS 7.5 , and I don't know how to resolve this problem.When I open the IIS it's normal, but when I click in HOST ( name of machine) in IIS , There is a big delay for...
View ArticleWeb Service is slow, timing out on WPAD (web proxy auto discovery)
We have a IIS 7.5 (.net 4.0) web service that is running slowly. I ran wireshark and found that it is making at least 6 DNS calls looking for wpad.<domain>.net. Each one times out as we don't...
View ArticleII8 Output Caching
Hi,I have enabled kernel cache with "using file change notifications" option.My ApplicationPool has below settings:Regular Time Interval: 1740 minutesIdle-Time Out: 1739 minutes My registry...
View ArticleSpikes in latency
Hi All,I am running a web farm of IIS7 on Server 2008 Web edition. We max out at 150 hits/sec at peak times load balanced across 4 servers.One of our customers is complaining they are getting time outs...
View ArticleIntermittent slow loads for mostly-static content (IIS7/Win2008)
Hi,we are having a bit of a problem with content delivery from the server (IIS7 on Windows Server 2008) that's running a couple PHP web sites. Quite often, small batches of requests end up taking a...
View ArticleIIS 7.5 Scaling and Optimization - Help with flooding of new requests
I have an mvc4 web api that services on average (W3SVC_W3WP) 50req/sec (per each server) on 4 physical servers (xeon 2.5Ghz 6 core 12 logical processors with 64G memory running win2008R2...
View Articleconcurrent connections causes request waiting
Environment: windows server 2008 R2 64bit, IIS7.5, ASP.NET 4.0 WebSite.Problem Description:When my websit's current connections is below 500 ( from the performance monitor in Advanced settings),...
View ArticleServer to busy warning while servers arent't busy at all...
Last week we updated our (cluster) hosting environment to Windows Server 2012 and IIS8. Since the update we experiencing some ‘server to busy’ warnings on aspx sites (asp.net).We have multiple load...
View ArticlePages appear to stop responding
We're running IIS7 on WS08. I have experienced SEVERAL times when I'm accessing a page on this server where it will simply stop responding. The load progress bar will show no progress at all, and...
View Articleweb garden memory usage
When I'm using web garden to start 5 w3wp processes, I found that one of the processs always takes a lot of memory and reachs about 2G, but the others 4 remain 800m or so, seems the load is mainly...
View ArticleSome application pools are very slow at first load
Hello,We have a strange problem on our Windows 2008 R2, IIS 7.5 webserver. Recently we've started on updating some of our website's to .NET 4.0, but we noticed that some of them load very very slow at...
View ArticleIIS output cache execution order when multiple requests to unfinished request
Hello,can anybody please point me to some usefull documentation or give me detailed explanation ?Situation:IIS receives request to ashx handler (querystring based) that is setup to have output cache...
View ArticleIIS 7.5 with 64 bit ISAPI dll with 32 bit Application pool
We have configured a 32 bit application pool running on IIS 7.5 64 bit. We have a 3rd party ISAPI filter and there is only 64 bit version available. Is there anyway in which we can have the filter...
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