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TIBCO Rendezvous® 8.8.0

# Avoid Flooding the Network

Rendezvous software can support high throughput, but all computers and networks have limits. Do not write programs that might flood the network with message traffic. Other computers must filter all multicast messages, at least at the hardware level and sometimes at software levels (operating system or Rendezvous daemon).

Do not code loops that repeatedly send messages without pausing between iterations. Pausing between messages helps leave sufficient network resources for other programs on the network. For example, if your program reads data from a local disk between network operations, it is unlikely to affect any other machines on a reasonably scaled and loaded network; the disk I/O between messages is a large enough pause.

Publishing programs can achieve high throughput rates by sending short bursts of messages punctuated by brief intervals. For example, structure the program as a timer callback function that sends a burst of messages each time its timer triggers; adjust the timer interval and the number of messages per burst for optimal performance.

When a program sends messages faster than the network can accommodate them, its outbound message queue grows. When any outbound message waits in the outbound message queue for more than 5 seconds, Rendezvous software presents a CLIENT.FASTPRODUCER warning advisory message. A program that receives this warning advisory message should slow the rate at which it sends messages.

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