def teardown():
try:
j.destroy()
j.emulate(CONF['tc'])
except Exception as e:
logging.warning(
"Setup went wrong. This is not necessarily a bad news, "
"in particular, if it is the first time you run the "
"experiment: %s" % e)
def init():
try:
j.g5k(config=CONF)
j.inventory()
j.destroy()
j.emulate(CONF['tc'])
except Exception as e:
logging.error("Setup goes wrong. This is not necessarily a bad news, "
"in particular, if it is the first time you run the "
"experiment: %s" % e)
def keystone_exp():
sweeper = ParamSweeper(SWEEPER_DIR,
sweeps=sweep({
'db': DATABASES,
'delay': DELAYS,
'db-nodes': CLUSTER_SIZES
}))
while sweeper.get_remaining():
combination = sweeper.get_next()
logging.info("Treating combination %s" % pformat(combination))
try:
# Setup parameters
conf = copy.deepcopy(CONF) # Make a deepcopy so we can run
# multiple sweeps in parallels
conf['g5k']['resources']['machines'][0]['nodes'] = combination[
'db-nodes']
conf['tc']['constraints'][0][
'delay'] = "%sms" % combination['delay']
db = combination['db']
locality = False
xp_name = "%s-%s-%s" % (db, combination['db-nodes'],
combination['delay'])
# Let's get it started hun!
j.deploy(conf, db, locality, xp_name)
j.openstack(db)
j.emulate(conf['tc'])
j.rally(SCENARIOS, "keystone")
j.backup()
# Everything works well, mark combination as done
sweeper.done(combination)
logging.info("End of combination %s" % pformat(combination))
except Exception as e:
# Oh no, something goes wrong! Mark combination as cancel for
# a later retry
logging.error("Combination %s Failed with message %s" %
(pformat(combination), e))
sweeper.cancel(combination)
finally:
teardown()