Is there a limit to the number of users? How many streams can it support?
There is no hard limit placed by Red5 Pro itself, but we use 2,000 concurrent streams as our average. However, the concurrency you can expect per Red5 Pro Server depends on two major factors, the specs of the hardware you deploy on and the quality of stream you are sending.
In our testing, we've seen AWS support up to 2400 streams at 500kbps each on an EC2 M3.2XL instance with an 8-core Xeon processor, 30GB ram. We also support clustering of the servers, so that you can get infinite scale. That is if you plan on supporting massive scale. Please see our hardware benchmarks for more information.