RTM: Application Request Routing 2.0

ARR 2.0 was announced as being released and available to download earlier this week.  It leverages IIS 7.0 and IIS 7.5 to give you a load balancing and content caching solution.  It’s an interesting solution, especially if you start reconsidering how you architect your web farms.  Here’s a listing of the features:

  • HTTP based routing decisions built using rules that examine HTTP request information
  • Sophisticated load balancing algorithms to determine appropriate servers to service the HTTP requests
  • Health monitoring for live traffic and specific URLs to determine the health of servers with a set of configuration parameters provided to calibrate baseline server health
  • Client affinity to direct all requests from a client to a specific server by using cookies.
  • Host name affinity to streamline administration for Web servers and to create additional business opportunities.
  • Management of multiple server farms to enable pilot management and A/B testing scenarios.
  • Management and monitoring of all configuration settings and aggregated runtime statistics through IIS Manager interface.
  • Support for Failed Request Tracing Rules
  • Disk-based caching
  • Cache hierarchy management
  • Cache proxy node in CDN/ECN environment
  • Caching compressed objects
  • Browsing cached contents using IIS Manager
  • Removing cached contents by matching URL patterns
  • Overriding cache-control directives
  • Warming up cache mode
  • Intelligent byte-range support
  • Intelligent live request support
  • Caching while serving responses

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