| Understanding Citrix Slow-Start load balancing |
| Wednesday, 15 March 2006 by Michel Roth | |||
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"In larger Farms the "in place" load balancing technology plays a critical role during peak logon periods. Hundreds or even thousand of users start working in a short time frame, resulting in dozen of login requests within seconds. If a server comes online during that time, then every request is send to the new server because the server has no load. Now this server probably gets more than 10 login request per second and means a heavy resource usage for the server. Due to the heavy resource usage the server might be unable to update its load and becomes unresponsive. Without the load updated, the Farm Data Collector will continue to send new login request to the server. This then looks like as if the server would “suck-in” all new incoming connections and is commonly known as the black hole effect." Read it here.
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