long delays in AcquireRequestState

Question

Using performance monitoring tool \"New Relic\" I am seeing occasional (but too many) long delays in the \"AcquireRequestState\". I am talking about 10, 20 second delays, s

Answer 1

Try to apply Hotfix Rollup 2828841 on the server.

Issue 6

Symptoms

When you send many concurrent requests that have the same SessionId to an ASP.NET 4.5 web application, some requests may freeze at the RequestAcquireState stage unexpectedly.

Resolution

After you apply the hotfix, the hotfix makes sure that the EndRequest event will always trigger.

This hotfix applies to Windows 7 Service Pack 1 (SP1), Windows Server 2008 R2 SP1, Windows Server 2008 Service Pack 2 (SP2), and Windows Vista SP2.