dispatch-gen-test-network

Program to emit configs and scripts to effect:

• Create a test network of routers
• Launch a sender. You can run several of these
• Launch a receiver. You can run several of these

The routers are chained in a line with the sender sending into the chain at one end and the receivers receiving at the other end.

There may be N routers in the chain

Routers listeners all "look left" for incoming connections.

The first, A:

• opens port 5672 for senders to fill
• opens connector to 21000 to next (B)

The second, B:

• opens interrouter listener on port 21000 for A's interrouter connection
• opens connector to 21002

The third, C:

• opens interrouter listener on port 21001 for B's interrouter connection
• opens connector to 21003

(and so on)

The last, N:

• opens interrouter listener on port 2100x for the interrouter connection
• opens user listener port 5674 for the receivers to drain

It's really convenient if all these ports are available when the scripts are started up, for sure.

Command line

python ./gen-test-network.py

What happens

• A directory is created to hold all the files. The directory name is a timestamp followed by the number of routers in the chain.
• CD into that directory
• Run the routers: ./run-qdrs.sh
• In another window run a sender: ./sender-balanced.sh "-m 1000000"
• In another window run a receiver: ./receiver-balanced.sh "-m 1000000"

Secret hard-coded names and constants

• This code is meant to run on my workstation. It assumes that ports 5672 and 5674 are avauilable and not blocked by firewalls or anything.

• A script is avaliable to set up an environment to run the router code of interest. My development system has script ~/bin/dispatch-setup.sh and a source code build at {DEVROOT}/build/router. You have to adjust these for your setup.

• Linux perf utility is installed

• flamegraph is installed

• qpid-proton is installed and the C++ example code senders and receivers are available.

• and probably more