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CTSlab.py
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#!/usr/bin/python
'''CTS: Cluster Testing System: Lab environment module
'''
__copyright__='''
Copyright (C) 2001,2005 Alan Robertson <alanr@unix.sh>
Licensed under the GNU GPL.
'''
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
from UserDict import UserDict
import sys, types, string, string, signal, os, socket
pdir=os.path.dirname(sys.path[0])
sys.path.insert(0, pdir) # So that things work from the source directory
try:
from cts.CTSvars import *
from cts.CM_ais import *
from cts.CM_lha import crm_lha
from cts.CTSaudits import AuditList
from cts.CTStests import TestList
from cts.CTSscenarios import *
except ImportError:
sys.stderr.write("abort: couldn't find cts libraries in [%s]\n" %
' '.join(sys.path))
sys.stderr.write("(check your install and PYTHONPATH)\n")
# Now do it again to get more details
from cts.CTSvars import *
from cts.CM_ais import *
from cts.CM_lha import crm_lha
from cts.CTSaudits import AuditList
from cts.CTStests import TestList
from cts.CTSscenarios import *
sys.exit(-1)
cm = None
Tests = []
Chosen = []
scenario = None
# Not really used, the handler in
def sig_handler(signum, frame) :
if cm: cm.log("Interrupted by signal %d"%signum)
if scenario: scenario.summarize()
if signum == 15 :
if scenario: scenario.TearDown()
sys.exit(1)
class LabEnvironment(CtsLab):
def __init__(self):
CtsLab.__init__(self)
# Get a random seed for the random number generator.
self["DoStandby"] = 1
self["DoFencing"] = 1
self["XmitLoss"] = "0.0"
self["RecvLoss"] = "0.0"
self["ClobberCIB"] = 0
self["CIBfilename"] = None
self["CIBResource"] = 0
self["DoBSC"] = 0
self["use_logd"] = 0
self["oprofile"] = []
self["warn-inactive"] = 0
self["ListTests"] = 0
self["benchmark"] = 0
self["Schema"] = "pacemaker-1.0"
self["Stack"] = "openais"
self["stonith-type"] = "external/ssh"
self["stonith-params"] = "hostlist=all,livedangerously=yes"
self["logger"] = ([StdErrLog(self)])
self["loop-minutes"] = 60
self["valgrind-prefix"] = None
self["valgrind-procs"] = "cib crmd attrd pengine stonith-ng"
self["valgrind-opts"] = """--leak-check=full --show-reachable=yes --trace-children=no --num-callers=25 --gen-suppressions=all --suppressions="""+CTSvars.CTS_home+"""/cts.supp"""
#self["valgrind-opts"] = """--trace-children=no --num-callers=25 --gen-suppressions=all --suppressions="""+CTSvars.CTS_home+"""/cts.supp"""
self["experimental-tests"] = 0
self["container-tests"] = 0
self["valgrind-tests"] = 0
self["unsafe-tests"] = 1
self["loop-tests"] = 1
self["scenario"] = "random"
self["stats"] = 0
master = socket.gethostname()
# Use the IP where possible to avoid name lookup failures
for ip in socket.gethostbyname_ex(master)[2]:
if ip != "127.0.0.1":
master = ip
break;
self["cts-master"] = master
def usage(arg, status=1):
print "Illegal argument " + arg
print "usage: " + sys.argv[0] +" [options] number-of-iterations"
print "\nCommon options: "
print "\t [--nodes 'node list'] list of cluster nodes separated by whitespace"
print "\t [--group | -g 'name'] use the nodes listed in the named DSH group (~/.dsh/groups/$name)"
print "\t [--limit-nodes max] only use the first 'max' cluster nodes supplied with --nodes"
print "\t [--stack (v0|v1|cman|corosync|heartbeat|openais)] which cluster stack is installed"
print "\t [--list-tests] list the valid tests"
print "\t [--benchmark] add the timing information"
print "\t "
print "Options that CTS will usually auto-detect correctly: "
print "\t [--logfile path] where should the test software look for logs from cluster nodes"
print "\t [--syslog-facility name] which syslog facility should the test software log to"
print "\t [--at-boot (1|0)] does the cluster software start at boot time"
print "\t [--test-ip-base ip] offset for generated IP address resources"
print "\t "
print "Options for release testing: "
print "\t [--populate-resources | -r] generate a sample configuration"
print "\t [--choose name] run only the named test"
print "\t [--stonith (1 | 0 | yes | no | rhcs | ssh)]"
print "\t [--once] run all valid tests once"
print "\t "
print "Additional (less common) options: "
print "\t [--clobber-cib | -c ] erase any existing configuration"
print "\t [--outputfile path] optional location for the test software to write logs to"
print "\t [--trunc] truncate logfile before starting"
print "\t [--xmit-loss lost-rate(0.0-1.0)]"
print "\t [--recv-loss lost-rate(0.0-1.0)]"
print "\t [--standby (1 | 0 | yes | no)]"
print "\t [--fencing (1 | 0 | yes | no | rhcs | lha | openstack )]"
print "\t [--stonith-type type]"
print "\t [--stonith-args name=value]"
print "\t [--bsc]"
print "\t [--no-loop-tests] dont run looping/time-based tests"
print "\t [--no-unsafe-tests] dont run tests that are unsafe for use with ocfs2/drbd"
print "\t [--valgrind-tests] include tests using valgrind"
print "\t [--experimental-tests] include experimental tests"
print "\t [--container-tests] include pacemaker_remote tests that run in lxc container resources"
print "\t [--oprofile 'node list'] list of cluster nodes to run oprofile on]"
print "\t [--qarsh] use the QARSH backdoor to access nodes instead of SSH"
print "\t [--seed random_seed]"
print "\t [--set option=value]"
print "\t "
print "\t Example: "
print "\t python ./CTSlab.py -g virt1 --stack cs -r --stonith ssh --schema pacemaker-1.0 500"
sys.exit(status)
#
# A little test code...
#
if __name__ == '__main__':
Environment = LabEnvironment()
rsh = RemoteExec(None, silent=True)
NumIter = 0
Version = 1
LimitNodes = 0
TruncateLog = 0
ListTests = 0
HaveSeed = 0
node_list = ''
# Set the signal handler
signal.signal(15, sig_handler)
signal.signal(10, sig_handler)
# Process arguments...
skipthis=None
args=sys.argv[1:]
for i in range(0, len(args)):
if skipthis:
skipthis=None
continue
elif args[i] == "-l" or args[i] == "--limit-nodes":
skipthis=1
LimitNodes = int(args[i+1])
elif args[i] == "-r" or args[i] == "--populate-resources":
Environment["CIBResource"] = 1
Environment["ClobberCIB"] = 1
elif args[i] == "-L" or args[i] == "--logfile":
skipthis=1
Environment["LogFileName"] = args[i+1]
elif args[i] == "--outputfile":
skipthis=1
Environment["OutputFile"] = args[i+1]
elif args[i] == "--ip" or args[i] == "--test-ip-base":
skipthis=1
Environment["IPBase"] = args[i+1]
Environment["CIBResource"] = 1
Environment["ClobberCIB"] = 1
elif args[i] == "--oprofile":
skipthis=1
Environment["oprofile"] = args[i+1].split(' ')
elif args[i] == "--trunc":
Environment["TruncateLog"]=1
elif args[i] == "--list-tests" or args[i] == "--list" :
Environment["ListTests"]=1
elif args[i] == "--benchmark":
Environment["benchmark"]=1
elif args[i] == "--bsc":
Environment["DoBSC"] = 1
Environment["scenario"] = "basic-sanity"
elif args[i] == "--qarsh":
Environment.rsh.enable_qarsh()
rsh.enable_qarsh()
elif args[i] == "--stonith" or args[i] == "--fencing":
skipthis=1
if args[i+1] == "1" or args[i+1] == "yes":
Environment["DoFencing"]=1
elif args[i+1] == "0" or args[i+1] == "no":
Environment["DoFencing"]=0
elif args[i+1] == "rhcs" or args[i+1] == "xvm" or args[i+1] == "virt":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_xvm"
Environment["stonith-params"] = "pcmk_arg_map=domain:uname,delay=0"
elif args[i+1] == "scsi":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_scsi"
Environment["stonith-params"] = "delay=0"
elif args[i+1] == "ssh" or args[i+1] == "lha":
Environment["DoStonith"]=1
Environment["stonith-type"] = "external/ssh"
Environment["stonith-params"] = "hostlist=all,livedangerously=yes"
elif args[i+1] == "north":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_apc"
Environment["stonith-params"] = "ipaddr=north-apc,login=apc,passwd=apc,pcmk_host_map=north-01:2;north-02:3;north-03:4;north-04:5;north-05:6;north-06:7;north-07:9;north-08:10;north-09:11;north-10:12;north-11:13;north-12:14;north-13:15;north-14:18;north-15:17;north-16:19;"
elif args[i+1] == "south":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_apc"
Environment["stonith-params"] = "ipaddr=south-apc,login=apc,passwd=apc,pcmk_host_map=south-01:2;south-02:3;south-03:4;south-04:5;south-05:6;south-06:7;south-07:9;south-08:10;south-09:11;south-10:12;south-11:13;south-12:14;south-13:15;south-14:18;south-15:17;south-16:19;"
elif args[i+1] == "east":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_apc"
Environment["stonith-params"] = "ipaddr=east-apc,login=apc,passwd=apc,pcmk_host_map=east-01:2;east-02:3;east-03:4;east-04:5;east-05:6;east-06:7;east-07:9;east-08:10;east-09:11;east-10:12;east-11:13;east-12:14;east-13:15;east-14:18;east-15:17;east-16:19;"
elif args[i+1] == "west":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_apc"
Environment["stonith-params"] = "ipaddr=west-apc,login=apc,passwd=apc,pcmk_host_map=west-01:2;west-02:3;west-03:4;west-04:5;west-05:6;west-06:7;west-07:9;west-08:10;west-09:11;west-10:12;west-11:13;west-12:14;west-13:15;west-14:18;west-15:17;west-16:19;"
elif args[i+1] == "openstack":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_openstack"
print "Obtaining OpenStack credentials from the current environment"
Environment["stonith-params"] = "region=%s,tenant=%s,auth=%s,user=%s,password=%s" % (
os.environ['OS_REGION_NAME'],
os.environ['OS_TENANT_NAME'],
os.environ['OS_AUTH_URL'],
os.environ['OS_USERNAME'],
os.environ['OS_PASSWORD']
)
elif args[i+1] == "rhevm":
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_rhevm"
print "Obtaining RHEV-M credentials from the current environment"
Environment["stonith-params"] = "login=%s,passwd=%s,ipaddr=%s,ipport=%s,ssl=1,shell_timeout=10" % (
os.environ['RHEVM_USERNAME'],
os.environ['RHEVM_PASSWORD'],
os.environ['RHEVM_SERVER'],
os.environ['RHEVM_PORT'],
)
else:
usage(args[i+1])
elif args[i] == "--stonith-type":
Environment["stonith-type"] = args[i+1]
skipthis=1
elif args[i] == "--stonith-args":
Environment["stonith-params"] = args[i+1]
skipthis=1
elif args[i] == "--standby":
skipthis=1
if args[i+1] == "1" or args[i+1] == "yes":
Environment["DoStandby"] = 1
elif args[i+1] == "0" or args[i+1] == "no":
Environment["DoStandby"] = 0
else:
usage(args[i+1])
elif args[i] == "--clobber-cib" or args[i] == "-c":
Environment["ClobberCIB"] = 1
elif args[i] == "--cib-filename":
skipthis=1
Environment["CIBfilename"] = args[i+1]
elif args[i] == "--xmit-loss":
try:
float(args[i+1])
except ValueError:
print ("--xmit-loss parameter should be float")
usage(args[i+1])
skipthis=1
Environment["XmitLoss"] = args[i+1]
elif args[i] == "--recv-loss":
try:
float(args[i+1])
except ValueError:
print ("--recv-loss parameter should be float")
usage(args[i+1])
skipthis=1
Environment["RecvLoss"] = args[i+1]
elif args[i] == "--choose":
skipthis=1
Chosen.append(args[i+1])
Environment["scenario"] = "sequence"
elif args[i] == "--nodes":
skipthis=1
node_list = args[i+1].split(' ')
elif args[i] == "-g" or args[i] == "--group" or args[i] == "--dsh-group":
skipthis=1
Environment["OutputFile"] = "%s/cluster-%s.log" % (os.environ['HOME'], args[i+1])
dsh_file = "%s/.dsh/group/%s" % (os.environ['HOME'], args[i+1])
# Hacks to make my life easier
if args[i+1] == "r6":
Environment["Stack"] = "cman"
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_xvm"
Environment["stonith-params"] = "delay=0"
Environment["IPBase"] = " fe80::1234:56:7890:4000"
elif args[i+1] == "virt1":
Environment["Stack"] = "corosync"
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_xvm"
Environment["stonith-params"] = "delay=0"
Environment["IPBase"] = " fe80::1234:56:7890:1000"
elif args[i+1] == "east16":
Environment["Stack"] = "corosync"
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_apc"
Environment["stonith-params"] = "ipaddr=east-apc,login=apc,passwd=apc,pcmk_host_map=east-01:2;east-02:3;east-03:4;east-04:5;east-05:6;east-06:7;east-07:9;east-08:10;east-09:11;east-10:12;east-11:13;east-12:14;east-13:15;east-14:18;east-15:17;east-16:19;"
Environment["IPBase"] = " fe80::1234:56:7890:2000"
elif args[i+1] == "corosync8":
Environment["Stack"] = "corosync"
Environment["DoStonith"]=1
Environment["stonith-type"] = "fence_rhevm"
print "Obtaining RHEV-M credentials from the current environment"
Environment["stonith-params"] = "login=%s,passwd=%s,ipaddr=%s,ipport=%s,ssl=1,shell_timeout=10" % (
os.environ['RHEVM_USERNAME'],
os.environ['RHEVM_PASSWORD'],
os.environ['RHEVM_SERVER'],
os.environ['RHEVM_PORT'],
)
Environment["IPBase"] = " fe80::1234:56:7890:3000"
if os.path.isfile(dsh_file):
node_list = []
f = open(dsh_file, 'r')
for line in f:
l = line.strip().rstrip()
if not l.startswith('#'):
node_list.append(l)
f.close()
else:
print("Unknown DSH group: %s" % args[i+1])
elif args[i] == "--syslog-facility" or args[i] == "--facility":
skipthis=1
Environment["SyslogFacility"] = args[i+1]
elif args[i] == "--seed":
skipthis=1
Environment.SeedRandom(args[i+1])
elif args[i] == "--warn-inactive":
Environment["warn-inactive"] = 1
elif args[i] == "--schema":
skipthis=1
Environment["Schema"] = args[i+1]
elif args[i] == "--ais":
Environment["Stack"] = "openais"
elif args[i] == "--at-boot" or args[i] == "--cluster-starts-at-boot":
skipthis=1
if args[i+1] == "1" or args[i+1] == "yes":
Environment["at-boot"] = 1
elif args[i+1] == "0" or args[i+1] == "no":
Environment["at-boot"] = 0
else:
usage(args[i+1])
elif args[i] == "--heartbeat" or args[i] == "--lha":
Environment["Stack"] = "heartbeat"
elif args[i] == "--hae":
Environment["Stack"] = "openais"
Environment["Schema"] = "hae"
elif args[i] == "--stack":
if args[i+1] == "fedora" or args[i+1] == "fedora-17" or args[i+1] == "fedora-18":
Environment["Stack"] = "corosync"
elif args[i+1] == "rhel-6":
Environment["Stack"] = "cman"
elif args[i+1] == "rhel-7":
Environment["Stack"] = "corosync"
else:
Environment["Stack"] = args[i+1]
skipthis=1
elif args[i] == "--once":
Environment["scenario"] = "all-once"
elif args[i] == "--boot":
Environment["scenario"] = "boot"
elif args[i] == "--valgrind-tests":
Environment["valgrind-tests"] = 1
elif args[i] == "--no-loop-tests":
Environment["loop-tests"] = 0
elif args[i] == "--loop-minutes":
skipthis=1
try:
Environment["loop-minutes"]=int(args[i+1])
except ValueError:
usage(args[i])
elif args[i] == "--no-unsafe-tests":
Environment["unsafe-tests"] = 0
elif args[i] == "--experimental-tests":
Environment["experimental-tests"] = 1
elif args[i] == "--container-tests":
Environment["container-tests"] = 1
elif args[i] == "--set":
skipthis=1
(name, value) = args[i+1].split('=')
Environment[name] = value
print "Setting %s = %s" % (name, value)
elif args[i] == "--":
break
else:
try:
NumIter=int(args[i])
except ValueError:
usage(args[i])
if Environment["DoBSC"]:
NumIter = 2
LimitNodes = 1
Chosen.append("AddResource")
Environment["ClobberCIB"] = 1
Environment["CIBResource"] = 0
Environment["logger"].append(FileLog(Environment, Environment["LogFileName"]))
elif Environment["OutputFile"]:
Environment["logger"].append(FileLog(Environment, Environment["OutputFile"]))
elif Environment["SyslogFacility"]:
Environment["logger"].append(SysLog(Environment))
if Environment["Stack"] == "heartbeat" or Environment["Stack"] == "lha":
Environment["Stack"] = "heartbeat"
Environment['CMclass'] = crm_lha
elif Environment["Stack"] == "openais" or Environment["Stack"] == "ais" or Environment["Stack"] == "whitetank":
Environment["Stack"] = "openais (whitetank)"
Environment['CMclass'] = crm_whitetank
Environment["use_logd"] = 0
elif Environment["Stack"] == "corosync" or Environment["Stack"] == "cs" or Environment["Stack"] == "mcp":
Environment["Stack"] = "corosync 2.x"
Environment['CMclass'] = crm_mcp
Environment["use_logd"] = 0
elif Environment["Stack"] == "cman":
Environment["Stack"] = "corosync (cman)"
Environment['CMclass'] = crm_cman
Environment["use_logd"] = 0
elif Environment["Stack"] == "v1":
Environment["Stack"] = "corosync (plugin v1)"
Environment['CMclass'] = crm_cs_v1
Environment["use_logd"] = 0
elif Environment["Stack"] == "v0":
Environment["Stack"] = "corosync (plugin v0)"
Environment['CMclass'] = crm_cs_v0
Environment["use_logd"] = 0
else:
print "Unknown stack: "+Environment["Stack"]
sys.exit(1)
if len(node_list) < 1:
print "No nodes specified!"
sys.exit(1)
if LimitNodes > 0:
if len(node_list) > LimitNodes:
print("Limiting the number of nodes configured=%d (max=%d)"
%(len(node_list), LimitNodes))
while len(node_list) > LimitNodes:
node_list.pop(len(node_list)-1)
Environment["nodes"] = []
for n in node_list:
if len(n.strip()):
Environment["nodes"].append(n.strip())
discover = random.Random().choice(Environment["nodes"])
Environment["have_systemd"] = not rsh(discover, "systemctl list-units")
# Detect syslog variant
if not Environment.has_key("syslogd") or not Environment["syslogd"]:
if Environment["have_systemd"]:
# Systemd
Environment["syslogd"] = rsh(discover, "systemctl list-units | grep syslog.*\.service.*active.*running | sed 's:.service.*::'", stdout=1).strip()
else:
# SYS-V
Environment["syslogd"] = rsh(discover, "chkconfig | grep syslog.*on | awk '{print $1}' | head -n 1", stdout=1).strip()
if not Environment.has_key("syslogd") or not Environment["syslogd"]:
# default
Environment["syslogd"] = "rsyslog"
# Detect if the cluster starts at boot
if not Environment.has_key("at-boot"):
atboot = 0
if Environment["have_systemd"]:
# Systemd
atboot = atboot or not rsh(discover, "systemctl is-enabled heartbeat.service")
atboot = atboot or not rsh(discover, "systemctl is-enabled corosync.service")
atboot = atboot or not rsh(discover, "systemctl is-enabled pacemaker.service")
else:
# SYS-V
atboot = atboot or not rsh(discover, "chkconfig | grep -e corosync.*on -e heartbeat.*on -e pacemaker.*on")
Environment["at-boot"] = atboot
# Try to determinw an offset for IPaddr resources
if Environment["CIBResource"] and not Environment.has_key("IPBase"):
network=rsh(discover, "ip addr | grep inet | grep -v -e link -e inet6 -e '/32' -e ' lo' | awk '{print $2}'", stdout=1).strip()
Environment["IPBase"] = rsh(discover, "nmap -sn -n %s | grep 'scan report' | awk '{print $NF}' | sed 's:(::' | sed 's:)::' | sort -V | tail -n 1" % network, stdout=1).strip()
if not Environment["IPBase"]:
Environment["IPBase"] = " fe80::1234:56:7890:1000"
Environment.log("Could not determine an offset for IPaddr resources. Perhaps nmap is not installed on the nodes.")
Environment.log("Defaulting to '%s', use --test-ip-base to override" % Environment["IPBase"])
elif int(Environment["IPBase"].split('.')[3]) >= 240:
Environment.log("Could not determine an offset for IPaddr resources. Upper bound is too high: %s %s"
% (Environment["IPBase"], Environment["IPBase"].split('.')[3]))
Environment["IPBase"] = " fe80::1234:56:7890:1000"
Environment.log("Defaulting to '%s', use --test-ip-base to override" % Environment["IPBase"])
# Create the Cluster Manager object
cm = Environment['CMclass'](Environment)
if TruncateLog:
Environment.log("Truncating %s" % LogFile)
lf = open(LogFile, "w");
if lf != None:
lf.truncate(0)
lf.close()
Audits = AuditList(cm)
if Environment["ListTests"] == 1 :
Tests = TestList(cm, Audits)
Environment.log("Total %d tests"%len(Tests))
for test in Tests :
Environment.log(str(test.name));
sys.exit(0)
if len(Chosen) == 0:
Tests = TestList(cm, Audits)
else:
for TestCase in Chosen:
match = None
for test in TestList(cm, Audits):
if test.name == TestCase:
match = test
if not match:
usage("--choose: No applicable/valid tests chosen")
else:
Tests.append(match)
# Scenario selection
if Environment["scenario"] == "basic-sanity":
scenario = RandomTests(cm, [ BasicSanityCheck(Environment) ], Audits, Tests)
elif Environment["scenario"] == "all-once":
NumIter = len(Tests)
scenario = AllOnce(
cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
elif Environment["scenario"] == "sequence":
scenario = Sequence(
cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
elif Environment["scenario"] == "boot":
scenario = Boot(cm, [ LeaveBooted(Environment)], Audits, [])
else:
scenario = RandomTests(
cm, [ BootCluster(Environment), PacketLoss(Environment) ], Audits, Tests)
Environment.log(">>>>>>>>>>>>>>>> BEGINNING " + repr(NumIter) + " TESTS ")
Environment.log("Stack: %s" % Environment["Stack"])
Environment.log("Schema: %s" % Environment["Schema"])
Environment.log("Scenario: %s" % scenario.__doc__)
Environment.log("CTS Master: %s" % Environment["cts-master"])
Environment.log("CTS Logfile: %s" % Environment["OutputFile"])
Environment.log("Random Seed: %s" % Environment["RandSeed"])
Environment.log("Syslog variant: %s" % Environment["syslogd"].strip())
Environment.log("System log files: %s" % Environment["LogFileName"])
# Environment.log(" ")
if Environment.has_key("IPBase"):
Environment.log("Base IP for resources: %s" % Environment["IPBase"])
Environment.log("Cluster starts at boot: %d" % Environment["at-boot"])
Environment.dump()
rc = Environment.run(scenario, NumIter)
sys.exit(rc)

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