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Adobe has released a white paper on LCDS capacity planning, based on benchmarks by Adobe engineering. If you have to estimate server load or data throughput for LCDS-based real-time messaging systems, you'll find this extremely helpful in planning your architecture.
http://www.adobe.com/products/livecycle/pdfs/95011594_lcds_planguide_wp_ue.pdf
However, the actual numbers depend upon your application's complexity, the size of data within messages, and multiple other factors. This paper will be helpful in estimating the load, but you've got to run some tests on your own too.
Keep in mind, this shouldn't be used to plan load for BlazeDS servers, as LCDS has RTMP channels and uses the NIO server. BlazeDS is based on the J2EE servlet container, which limits concurrent connections and scalability.
You can read more about the LCDS & the NIO server at:
http://livedocs.adobe.com/livecycle/8.2/programLC/programmer/lcds/lcds_26_devguide.pdf
And more about LCDS enpoints here:
http://www.dcooper.org/Blog/client/index.cfm?mode=entry&entry=942B63DD-4E22-1671-5B4CF844C30A0E98
___________________________________
Andrew Trice
Principal Architect
Cynergy Systems
http://www.cynergysystems.com
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This is a great achievement by Adobe, LCDS capacity planning, based on benchmarks by Adobe engineering. Adobe should jump into some type of electronics devices as well.