Instance Warm Up Time
Instance Warm Up Time refers to the time required by a new Red5 Pro instance to reach a stable
INSERVICE state from the time it was launched. It may very well depend on your choice of cloud platform's instance type offering and any special settings that your instance configuration may contain.
While you do not need to calculate this parameter explicitly, it is useful to know the approximate warm times for your target platform.
The configuration property
instancecontroller.newNodePingTimeThreshold found in the stream manager configuration file
red5-web.properties corresponds to the time taken for a node to ping Stream Manager for the first time since its launch. Which is kept sufficiently higher than the warmup time.
If a node fails to ping the Stream Manager within this time it is considered as a failed launch and the node is removed from the data store without any further wait.