Jonathan Hart | a061cc5 | 2013-04-30 10:41:21 -0700 | [diff] [blame^] | 1 | #!/usr/bin/env python |
| 2 | |
| 3 | """ |
| 4 | Small script to run a stress test on a Cassandra cluster. |
| 5 | The script will periodically query data from Cassandra via ONOS |
| 6 | and time the request duration. |
| 7 | """ |
| 8 | |
| 9 | import os |
| 10 | import sys |
| 11 | import json |
| 12 | import time |
| 13 | import timeit |
| 14 | |
| 15 | host = "localhost" |
| 16 | port = "9000" |
| 17 | |
| 18 | url="http://%s:%s/wm/core/topology/switches/all/json" % (host, port) |
| 19 | command = "curl -m 5 -s %s" % url |
| 20 | |
| 21 | if len(sys.argv) < 2: |
| 22 | print "usage: %s output_file" % sys.argv[0] |
| 23 | sys.exit(1) |
| 24 | |
| 25 | output_filename = sys.argv[1] |
| 26 | output_file = open(output_filename, 'w') |
| 27 | output_file.write("Time" + os.linesep) |
| 28 | |
| 29 | def do_request(): |
| 30 | try: |
| 31 | result = os.popen(command).read() |
| 32 | parsedResult = json.loads(result) |
| 33 | except Exception as e: |
| 34 | print "Curl call failed: %s" % e |
| 35 | sys.exit(1) |
| 36 | |
| 37 | |
| 38 | if __name__ == "__main__": |
| 39 | while (True): |
| 40 | time_elapsed = timeit.timeit('do_request()', 'from __main__ import do_request', number=1) |
| 41 | output_file.write("%s%s" % (time_elapsed, os.linesep)) |
| 42 | output_file.flush() |
| 43 | time.sleep(1) |