def RunBenchmark(iters, ops, r, w, out_prefix, pbs, branch, replicas=3,
threads=50):
for i in xrange(0, iters):
# Checkout the right branch
checkout_branch(branch)
print "Restarting cassandra cluster"
kill_cassandra("all-hosts")
clean_cassandra("all-hosts")
set_up_cassandra_ring("all-hosts")
launch_cassandra_ring("all-hosts")
# Set the right JMX value
set_pbs_jmx(pbs)
# Get the leader and run stress from there
chosts = get_host_ips("all-hosts")
leader = chosts[0]
print "Using Cassandra leader ", leader
out_insert = "./%s_insert_%d" % (out_prefix, i)
out_read = "./%s_read_%d" % (out_prefix, i)
f_out_insert = open(out_insert, "w")
f_out_read = open(out_read, "w")
# Run insert test
run_process_single(leader, "cd cassandra; ./tools/bin/cassandra-stress"\
" -d %s -l %d -e %s -n %d -t %d -o insert" % (leader,
replicas, GetConsistencyLevel(w), ops, threads),
user="******", stdout=f_out_insert,
stderr=f_out_insert)
# Run read test
run_process_single(leader, "cd cassandra; ./tools/bin/cassandra-stress"\
" -d %s -l %d -e %s -n %d -t %d -o read" % (leader,
replicas, GetConsistencyLevel(r), ops, threads),
user="******", stdout=f_out_read, stderr=f_out_read)
help='Launch EC2 cluster')
parser.add_argument('--terminate', '-t', action='store_true',
help='Terminate the EC2 cluster')
parser.add_argument('--restart', '-r', action='store_true',
help='Restart cassandra cluster')
parser.add_argument('--machines', '-n', dest='machines', nargs='?',
default=4, type=int,
help='Number of machines in cluster, default=4')
args = parser.parse_args()
if args.launch:
print "Launching cassandra cluster"
start_cluster(args.machines)
setup_cluster()
clone_cassandra_pbs()
checkout_branch("for-cassandra")
if args.restart:
print "Restarting cassandra cluster"
kill_cassandra("all-hosts")
clean_cassandra("all-hosts")
set_up_cassandra_ring("all-hosts")
launch_cassandra_ring("all-hosts")
if args.terminate:
print "Terminating cassandra cluster"
terminate_cluster()
if not args.launch and not args.restart and not args.terminate:
parser.print_help()