**breaking** mini-ndn: re-design
refs: #5062
Everything is now done through examples like Mininet.
bin/minindn no longer provided as a binary installed in the system
bin/minindnedit GUI: will no longer be maintained
Remove cluster edition, will be re-introduced later
Change-Id: Id4ef137cb2a04d1b0dd24d01941757363bbf7d26
diff --git a/examples/nlsr/multiple_failure.py b/examples/nlsr/multiple_failure.py
new file mode 100644
index 0000000..48d1afd
--- /dev/null
+++ b/examples/nlsr/multiple_failure.py
@@ -0,0 +1,109 @@
+# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+#
+# Copyright (C) 2015-2019, The University of Memphis,
+# Arizona Board of Regents,
+# Regents of the University of California.
+#
+# This file is part of Mini-NDN.
+# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
+#
+# Mini-NDN 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 3 of the License, or
+# (at your option) any later version.
+#
+# Mini-NDN 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 Mini-NDN, e.g., in COPYING.md file.
+# If not, see <http://www.gnu.org/licenses/>.
+
+import time
+
+from mininet.log import setLogLevel, info
+
+from minindn.minindn import Minindn
+from minindn.util import MiniNDNCLI
+from minindn.apps.app_manager import AppManager
+from minindn.apps.nfd import Nfd
+from minindn.apps.nlsr import Nlsr
+from minindn.helpers.experiment import Experiment
+from minindn.helpers.nfdc import Nfdc
+from minindn.helpers.ndnpingclient import NDNPingClient
+
+from nlsr_common import getParser
+
+def multipleFailure(ndn, nfds, nlsrs, args):
+
+ Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
+ Experiment.setupPing(ndn.net.hosts, Nfdc.STRATEGY_BEST_ROUTE)
+
+ PING_COLLECTION_TIME_BEFORE_FAILURE = 60
+ FAILURE_INTERVAL = 60
+ RECOVERY_INTERVAL = 60
+
+ # This is the number of pings required to make it through the full experiment
+ nInitialPings = (PING_COLLECTION_TIME_BEFORE_FAILURE +
+ len(ndn.net.hosts) * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
+ print('Scheduling with {} initial pings'.format(nInitialPings))
+
+ pingedDict = Experiment.startPctPings(ndn.net, nInitialPings, args.pctTraffic)
+ time.sleep(PING_COLLECTION_TIME_BEFORE_FAILURE)
+
+ nNodesRemainingToFail = len(ndn.net.hosts)
+
+ for host in ndn.net.hosts:
+ # Fail the node
+ info('Bringing down node {}\n'.format(host.name))
+ nlsrs[host.name].stop()
+ nfds[host.name].stop()
+
+ # Stay in failure state for FAILURE_INTERVAL seconds
+ time.sleep(FAILURE_INTERVAL)
+
+ # Bring the node back up
+ start_time = time.time()
+ info('Bringing up node {}\n'.format(host.name))
+ nfds[host.name].start()
+ nlsrs[host.name].start()
+ Experiment.setupPing([host], Nfdc.STRATEGY_BEST_ROUTE)
+
+ recovery_time = int(time.time() - start_time)
+
+ # Number of pings required to reach the end of the test
+ nNodesRemainingToFail -= 1
+ nPings = ((RECOVERY_INTERVAL - recovery_time) +
+ nNodesRemainingToFail * (FAILURE_INTERVAL + RECOVERY_INTERVAL))
+
+ info('Scheduling with {} remaining pings\n'.format(nPings))
+
+ # Restart pings
+ for nodeToPing in pingedDict[host]:
+ NDNPingClient.ping(host, nodeToPing, nPings)
+
+ time.sleep(RECOVERY_INTERVAL - recovery_time)
+
+ #Experiment.checkConvergence(ndn, ndn.net.hosts, args.ctime, quit=True)
+
+if __name__ == '__main__':
+ setLogLevel('info')
+
+ ndn = Minindn(parser=getParser())
+ args = ndn.args
+
+ ndn.start()
+
+ nfds = AppManager(ndn, ndn.net.hosts, Nfd)
+ nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr, sync=args.sync,
+ security=args.security, faceType=args.faceType,
+ nFaces=args.faces, routingType=args.routingType)
+
+ multipleFailure(ndn, nfds, nlsrs, args)
+
+ if args.isCliEnabled:
+ MiniNDNCLI(ndn.net)
+
+ ndn.stop()