###Alternative to running python (as described below) on your machine, use the docker files.

1. Build docker container with docker build -t drsim_common:latest .

2. Run the container docker-compose up

3. For specific behavior of of the simulators, add arguments to the command entries in the docker-compose.yml. For example command: node dmaapDR.js --tc no_publish . (No argument will assume '--tc normal'). Run node dmaapDR.js --printtc and node dmaapDR-redir.js --printtc for details.

4. install nodejs

5. install npm Make sure that you run these commands in the application directory "dr-sim"

6. npm install express

7. npm install argparse

8. node dmaapDR.js #keep it in the foreground, see item 3 in the above list for arg to the simulator

9. node dmaapDR_redir.js #keep it in the foreground, see item 3 in the above list for arg to the simulator

The dmaapDR_redir server send callback to dmaapDR server to update the list of successfully published files. As default, the ip for dmaapDR is set to work when running as container (using an ip address from the dfc_net docker network) . When running the servers from command line, set the env variable DR_SIM_IP=localhost

The simulator can be queried for statistics (use curl from cmd line or open in browser, curl used below):

DR

curl localhost:3906/ctr_publish_query - returns the number of publish queries

curl localhost:3906/ctr_publish_query_published - returns the number of responses where the files was published

curl localhost:3906/ctr_publish_query_not_published - returns the number of responses where the file was not published

curl localhost:3906/ctr_publish_req - returns the number of publish requests

curl localhost:3906/ctr_publish_req_redirect - returns the number of publish responses with redirect

curl localhost:3906/ctr_publish_req_published - returns the number of publish responses without redirect

curl localhost:3906/ctr_published_files - returns the number of unique published files

curl localhost:3906/tc_info - returns the tc name (argument on the command line)

curl localhost:3906/execution_time - returns the execution times in mm:ss

DR REDIR

curl localhost:3908/ctr_publish_requests - returns the number of publish queries

curl localhost:3908/ctr_publish_responses - returns the number of publish responses

curl localhost:3908/tc_info - returns the tc name (argument on the command line)

curl localhost:3908/execution_time - returns the execution times in mm:ss

curl localhost:3908/time_lastpublish - returns the time (mm:ss) for the latest publish

curl localhost:3908/dwl_volume - returns the total received data volume of file data