Hi

Im trying to run umbraco with a clustered SQL Server 2012 database.

My exact version is umbraco v 4.7.1.1 (Assembly version: 1.0.4393.24044)

The most common error is "The wait operation timed out" followed by an exception

Umbraco Exception (DataLayer): SQL helper exception in ExecuteReader
  at umbraco.DataLayer.SqlHelper`1.ExecuteReader(String commandText, IParameter[] parameters)
  at umbraco.cms.businesslogic.web.Domain.initDomain(Int32 id)
  at umbraco.cms.businesslogic.web.Domain.<GetDomains>b__0()
  at umbraco.cms.businesslogic.cache.Cache.GetCacheItem[TT](String cacheKey, Object syncLock, CacheItemPriority priority, CacheItemRemovedCallback refreshAction, CacheDependency cacheDependency, TimeSpan timeout, GetCacheItemDelegate`1 getCacheItem)
  at umbraco.cms.businesslogic.cache.Cache.GetCacheItem[TT](String cacheKey, Object syncLock, CacheItemPriority priority, CacheItemRemovedCallback refreshAction, TimeSpan timeout, GetCacheItemDelegate`1 getCacheItem)
  at umbraco.cms.businesslogic.cache.Cache.GetCacheItem[TT](String cacheKey, Object syncLock, CacheItemRemovedCallback refreshAction, TimeSpan timeout, GetCacheItemDelegate`1 getCacheItem)
  at umbraco.cms.businesslogic.cache.Cache.GetCacheItem[TT](String cacheKey, Object syncLock, TimeSpan timeout, GetCacheItemDelegate`1 getCacheItem)
  at umbraco.cms.businesslogic.web.Domain.GetDomains()
  at umbraco.cms.businesslogic.web.Domain.Exists(String DomainName)
  at umbraco.requestHandler.CreateXPathQuery(String url, Boolean checkDomain)
  at umbraco.requestHandler..ctor(XmlDocument umbracoContent, String url)
  at umbraco.UmbracoDefault.Page_PreInit(Object sender, EventArgs e)
  at System.EventHandler.Invoke(Object sender, EventArgs e)
  at System.Web.UI.Page.PerformPreInit()
  at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

I don't really know where to start. The database is running just fine with other applications so this is very strange.

Any advice out there how to run Umbraco with SQL Clusters?