Rich Lane
5c24263779
IVS needs to be sent SIGTERM so it has a chance to clean up the kernel datapath.
68 lines
2.3 KiB
Python
Executable File
68 lines
2.3 KiB
Python
Executable File
"""
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Mininet Cleanup
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author: Bob Lantz (rlantz@cs.stanford.edu)
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Unfortunately, Mininet and OpenFlow (and the Linux kernel)
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don't always clean up properly after themselves. Until they do
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(or until cleanup functionality is integrated into the Python
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code), this script may be used to get rid of unwanted garbage.
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It may also get rid of 'false positives', but hopefully
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nothing irreplaceable!
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"""
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from subprocess import Popen, PIPE
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import time
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from mininet.log import info
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from mininet.term import cleanUpScreens
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def sh( cmd ):
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"Print a command and send it to the shell"
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info( cmd + '\n' )
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return Popen( [ '/bin/sh', '-c', cmd ], stdout=PIPE ).communicate()[ 0 ]
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def cleanup():
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"""Clean up junk which might be left over from old runs;
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do fast stuff before slow dp and link removal!"""
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info("*** Removing excess controllers/ofprotocols/ofdatapaths/pings/noxes"
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"\n")
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zombies = 'controller ofprotocol ofdatapath ping nox_core lt-nox_core '
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zombies += 'ovs-openflowd ovs-controller udpbwtest mnexec ivs'
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# Note: real zombie processes can't actually be killed, since they
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# are already (un)dead. Then again,
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# you can't connect to them either, so they're mostly harmless.
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# Send SIGTERM first to give processes a chance to shutdown cleanly.
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sh( 'killall ' + zombies + ' 2> /dev/null' )
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time.sleep(1)
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sh( 'killall -9 ' + zombies + ' 2> /dev/null' )
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# And kill off sudo mnexec
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sh( 'pkill -9 -f "sudo mnexec"')
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info( "*** Removing junk from /tmp\n" )
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sh( 'rm -f /tmp/vconn* /tmp/vlogs* /tmp/*.out /tmp/*.log' )
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info( "*** Removing old X11 tunnels\n" )
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cleanUpScreens()
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info( "*** Removing excess kernel datapaths\n" )
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dps = sh( "ps ax | egrep -o 'dp[0-9]+' | sed 's/dp/nl:/'" ).split( '\n' )
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for dp in dps:
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if dp != '':
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sh( 'dpctl deldp ' + dp )
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info( "*** Removing OVS datapaths" )
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dps = sh("ovs-vsctl --timeout=1 list-br").split( '\n' )
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for dp in dps:
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if dp:
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sh( 'ovs-vsctl del-br ' + dp )
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info( "*** Removing all links of the pattern foo-ethX\n" )
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links = sh( r"ip link show | egrep -o '(\w+-eth\w+)'" ).split( '\n' )
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for link in links:
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if link != '':
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sh( "ip link del " + link )
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info( "*** Cleanup complete.\n" )
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