# Faiyaz Ahmed <faiyaza@cs.princeton.edu>
# Copyright (C) 2004-2006 The Trustees of Princeton University
#
-# $Id: bwmon.py,v 1.20 2007/01/10 16:51:04 faiyaza Exp $
+# $Id: bwmon.py,v 1.10 2007/02/27 23:03:58 faiyaza Exp $
#
import os
import time
import pickle
-#import socket
+import socket
#import xmlrpclib
-#import bwlimit
+import bwlimit
+import logger
from sets import Set
+try:
+ sys.path.append("/etc/planetlab")
+ from plc_config import *
+except:
+ logger.log("bwmon: Warning: Configuration file /etc/planetlab/plc_config.py not found")
+ PLC_NAME = "PlanetLab"
+ PLC_SLICE_PREFIX = "pl"
+ PLC_MAIL_SUPPORT_ADDRESS = "support@planet-lab.org"
+ PLC_MAIL_SLICE_ADDRESS = "SLICE@slices.planet-lab.org"
+
# Utility functions
#from pl_mom import *
bits_per_byte = 8
# Defaults
-debug = False
-verbose = 0
+debug = False
+verbose = False
datafile = "/var/lib/misc/bwmon.dat"
#nm = None
-# Burst to line rate (or node cap). Set by NM.
-default_maxrate = bwlimit.get_bwcap()
-default_maxi2rate = bwlimit.bwmax
-default_MinRate = 8
-
-# What we cap to when slices break the rules.
-# 500 Kbit or 5.4 GB per day
-#default_avgrate = 500000
-# 1.5 Mbit or 16.4 GB per day
-#default_avgexemptrate = 1500000
-
+# Burst to line rate (or node cap). Set by NM. in KBit/s
+default_MaxRate = int(bwlimit.get_bwcap() / 1000)
+default_Maxi2Rate = int(bwlimit.bwmax / 1000)
+# Min rate 8 bits/s
+default_MinRate = 0
+default_Mini2Rate = 0
# 5.4 Gbyte per day. 5.4 * 1024 k * 1024M * 1024G
# 5.4 Gbyte per day max allowed transfered per recording period
-default_ByteMax = 5798205850
-default_ByteThresh = int(.8 * default_ByteMax)
+default_MaxKByte = 5662310
+default_ThreshKByte = int(.8 * default_MaxKByte)
# 16.4 Gbyte per day max allowed transfered per recording period to I2
-default_ExemptByteMax = 17609365914
-default_ExemptByteThresh = int(.8 * default_ExemptByteMax)
-
+default_Maxi2KByte = 17196646
+default_Threshi2KByte = int(.8 * default_Maxi2KByte)
+# Default share quanta
+default_Share = 1
# Average over 1 day
period = 1 * seconds_per_day
%(date)s %(hostname)s bwcap %(slice)s
""".lstrip()
+def format_bytes(bytes, si = True):
+ """
+ Formats bytes into a string
+ """
+ if si:
+ kilo = 1000.
+ else:
+ # Officially, a kibibyte
+ kilo = 1024.
+
+ if bytes >= (kilo * kilo * kilo):
+ return "%.1f GB" % (bytes / (kilo * kilo * kilo))
+ elif bytes >= 1000000:
+ return "%.1f MB" % (bytes / (kilo * kilo))
+ elif bytes >= 1000:
+ return "%.1f KB" % (bytes / kilo)
+ else:
+ return "%.0f bytes" % bytes
+
+def format_period(seconds):
+ """
+ Formats a period in seconds into a string
+ """
+
+ if seconds == (24 * 60 * 60):
+ return "day"
+ elif seconds == (60 * 60):
+ return "hour"
+ elif seconds > (24 * 60 * 60):
+ return "%.1f days" % (seconds / 24. / 60. / 60.)
+ elif seconds > (60 * 60):
+ return "%.1f hours" % (seconds / 60. / 60.)
+ elif seconds > (60):
+ return "%.1f minutes" % (seconds / 60.)
+ else:
+ return "%.0f seconds" % seconds
+
+def slicemail(slice, subject, body):
+ sendmail = os.popen("/usr/sbin/sendmail -N never -t -f%s" % PLC_MAIL_SUPPORT_ADDRESS, "w")
+
+ # PLC has a separate list for pl_mom messages
+ if PLC_MAIL_SUPPORT_ADDRESS == "support@planet-lab.org":
+ to = ["pl-mom@planet-lab.org"]
+ else:
+ to = [PLC_MAIL_SUPPORT_ADDRESS]
+
+ if slice is not None and slice != "root":
+ to.append(PLC_MAIL_SLICE_ADDRESS.replace("SLICE", slice))
+
+ header = {'from': "%s Support <%s>" % (PLC_NAME, PLC_MAIL_SUPPORT_ADDRESS),
+ 'to': ", ".join(to),
+ 'version': sys.version.split(" ")[0],
+ 'subject': subject}
+
+ # Write headers
+ sendmail.write(
+"""
+Content-type: text/plain
+From: %(from)s
+Reply-To: %(from)s
+To: %(to)s
+X-Mailer: Python/%(version)s
+Subject: %(subject)s
+
+""".lstrip() % header)
+
+ # Write body
+ sendmail.write(body)
+ # Done
+ sendmail.close()
+
+
class Slice:
"""
Stores the last recorded bandwidth parameters of a slice.
"""
- def __init__(self, xid, name, maxrate, maxexemptrate, bytes, exemptbytes):
+ def __init__(self, xid, name, data):
self.xid = xid
self.name = name
self.time = 0
self.bytes = 0
self.i2bytes = 0
- self.MaxRate = default_maxrate
- self.MinRate = default_MinRate
- self.Mini2Rate = default_MinRate
- self.Maxi2Rate = default_maxi2rate
- self.MaxKByte = default_ByteMax
- self.ThreshKByte = default_ByteThresh
- self.Maxi2KByte = default_ExemptByteMax
- self.Threshi2KByte = default_ExemptByteThresh
+ self.MaxRate = default_MaxRate
+ self.MinRate = default_MinRate
+ self.Maxi2Rate = default_Maxi2Rate
+ self.Mini2Rate = default_Mini2Rate
+ self.MaxKByte = default_MaxKByte
+ self.ThreshKByte = default_ThreshKByte
+ self.Maxi2KByte = default_Maxi2KByte
+ self.Threshi2KByte = default_Threshi2KByte
+ self.Share = default_Share
self.emailed = False
- # Get real values where applicable
- self.reset(maxrate, maxi2rate, bytes, i2bytes)
+ self.updateSliceAttributes(data)
+ bwlimit.set(xid = self.xid,
+ minrate = self.MinRate,
+ maxrate = self.MaxRate,
+ maxexemptrate = self.Maxi2Rate,
+ minexemptrate = self.Mini2Rate,
+ share = self.Share)
+
def __repr__(self):
return self.name
def updateSliceAttributes(self, data):
-
- for sliver in data['slivers']:
- for attribute in sliver['attributes']:
- if attribute['name'] == 'net_min_rate':
- self.MinRate = attribute['value']
- elif attribute['name'] == 'net_max_rate':
- self.MaxRate = attribute['value']
- elif attribute['name'] == 'net_i2_min_rate':
- self.Mini2Rate = attribute['value']
- elif attribute['name'] == 'net_i2_max_rate':
- self.Maxi2Rate = attribute['value']
- elif attribute['name'] == 'net_max_kbyte':
- self.M = attribute['value']
- elif attribute['name'] == 'net_i2_max_kbyte':
- self.minrate = attribute['value']
- elif attribute['name'] == 'net_thresh_kbyte':
- self.minrate = attribute['value']
- elif attribute['name'] == 'net_i2_thresh_kbyte':
- self.minrate = attribute['value']
-
- def reset(self, maxrate, maxi2rate, bytes, i2bytes):
+ for sliver in data['slivers']:
+ if sliver['name'] == self.name:
+ for attribute in sliver['attributes']:
+ if attribute['name'] == 'net_min_rate':
+ logger.log("bwmon: Updating %s. Min Rate = %s" \
+ %(self.name, self.MinRate))
+ # To ensure min does not go above 25% of nodecap.
+ if int(attribute['value']) > int(.25 * default_MaxRate):
+ self.MinRate = int(.25 * default_MaxRate)
+ else:
+ self.MinRate = int(attribute['value'])
+ elif attribute['name'] == 'net_max_rate':
+ self.MaxRate = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Max Rate = %s" \
+ %(self.name, self.MaxRate))
+ elif attribute['name'] == 'net_i2_min_rate':
+ self.Mini2Rate = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Min i2 Rate = %s" \
+ %(self.name, self.Mini2Rate))
+ elif attribute['name'] == 'net_i2_max_rate':
+ self.Maxi2Rate = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Max i2 Rate = %s" \
+ %(self.name, self.Maxi2Rate))
+ elif attribute['name'] == 'net_max_kbyte':
+ self.MaxKByte = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Max KByte lim = %s" \
+ %(self.name, self.MaxKByte))
+ elif attribute['name'] == 'net_i2_max_kbyte':
+ self.Maxi2KByte = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Max i2 KByte = %s" \
+ %(self.name, self.Maxi2KByte))
+ elif attribute['name'] == 'net_thresh_kbyte':
+ self.ThreshKByte = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Thresh KByte = %s" \
+ %(self.name, self.ThreshKByte))
+ elif attribute['name'] == 'net_i2_thresh_kbyte':
+ self.Threshi2KByte = int(attribute['value'])
+ logger.log("bwmon: Updating %s. i2 Thresh KByte = %s" \
+ %(self.name, self.Threshi2KByte))
+ elif attribute['name'] == 'net_share':
+ self.Share = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Net Share = %s" \
+ %(self.name, self.Share))
+ elif attribute['name'] == 'net_i2_share':
+ self.Sharei2 = int(attribute['value'])
+ logger.log("bwmon: Updating %s. Net i2 Share = %s" \
+ %(self.name, self.i2Share))
+
+
+ def reset(self, runningmaxrate, runningmaxi2rate, usedbytes, usedi2bytes, data):
"""
Begin a new recording period. Remove caps by restoring limits
to their default values.
"""
# Query Node Manager for max rate overrides
- self.updateSliceAttributes()
+ self.updateSliceAttributes(data)
# Reset baseline time
self.time = time.time()
# Reset baseline byte coutns
- self.bytes = bytes
- self.i2bytes = exemptbytes
+ self.bytes = usedbytes
+ self.i2bytes = usedi2bytes
# Reset email
self.emailed = False
-
- # Reset rates.
- if (self.MaxRate != maxrate) or (self.Maxi2Rate != maxi2rate):
- print "%s reset to %s/%s" % \
+ maxrate = self.MaxRate * 1000
+ maxi2rate = self.Maxi2Rate * 1000
+ # Reset rates.
+ if (self.MaxRate != runningmaxrate) or (self.Maxi2Rate != runningmaxi2rate):
+ logger.log("bwmon: %s reset to %s/%s" % \
(self.name,
- bwlimit.format_tc_rate(self.MaxRate),
- bwlimit.format_tc_rate(self.Maxi2Rate))
- bwlimit.set(xid = self.xid, maxrate = self.MaxRate, maxexemptrate = self.Maxi2Rate)
-
- def update(self, maxrate, maxi2rate, bytes, ibytes):
+ bwlimit.format_tc_rate(maxrate),
+ bwlimit.format_tc_rate(maxi2rate)))
+ bwlimit.set(xid = self.xid,
+ minrate = self.MinRate * 1000,
+ maxrate = self.MaxRate * 1000,
+ maxexemptrate = self.Maxi2Rate * 1000,
+ minexemptrate = self.Mini2Rate * 1000,
+ share = self.Share)
+
+ def update(self, runningmaxrate, runningmaxi2rate, usedbytes, usedi2bytes, data):
"""
Update byte counts and check if byte limits have been
exceeded.
"""
# Query Node Manager for max rate overrides
- self.updateSliceAttributes()
+ self.updateSliceAttributes(data)
# Prepare message parameters from the template
message = ""
'date': time.asctime(time.gmtime()) + " GMT",
'period': format_period(period)}
- if bytes >= (self.bytes + self.ByteThresh):
- new_maxrate = \
- int(((self.ByteMax - (bytes - self.bytes)) * 8)/(period - int(time.time() - self.time)))
- if new_maxrate < default_MinRate:
- new_maxrate = default_MinRate
+ if usedbytes >= (self.bytes + (self.ThreshKByte * 1024)):
+ maxbyte = self.MaxKByte * 1024
+ bytesused = usedbytes - self.bytes
+ timeused = int(time.time() - self.time)
+ new_maxrate = int(((maxbyte - bytesused) * 8)/(period - timeused))
+ if new_maxrate < (self.MinRate * 1000):
+ new_maxrate = self.MinRate * 1000
else:
- new_maxrate = maxrate
+ new_maxrate = self.MaxRate * 1000
# Format template parameters for low bandwidth message
params['class'] = "low bandwidth"
- params['bytes'] = format_bytes(bytes - self.bytes)
- params['maxrate'] = bwlimit.format_tc_rate(maxrate)
- params['limit'] = format_bytes(self.ByteMax)
+ params['bytes'] = format_bytes(usedbytes - self.bytes)
+ params['limit'] = format_bytes(self.MaxKByte * 1024)
params['new_maxrate'] = bwlimit.format_tc_rate(new_maxrate)
if verbose:
- print "%(slice)s %(class)s " \
+ logger.log("bwmon: %(slice)s %(class)s " \
"%(bytes)s of %(limit)s (%(new_maxrate)s/s maxrate)" % \
- params
+ params)
# Cap low bandwidth burst rate
- if new_maxrate != maxrate:
+ if new_maxrate != runningmaxrate:
message += template % params
- print "%(slice)s %(class)s capped at %(new_maxrate)s/s " % params
+ logger.log("bwmon: ** %(slice)s %(class)s capped at %(new_maxrate)s/s " % params)
- if exemptbytes >= (self.exemptbytes + self.ExemptByteThresh):
- new_maxexemptrate = \
- int(((self.ExemptByteMax - (self.bytes - bytes)) * 8)/(period - int(time.time() - self.time)))
- if new_maxexemptrate < default_MinRate:
- new_maxexemptrate = default_MinRate
+ if usedi2bytes >= (self.i2bytes + (self.Threshi2KByte * 1024)):
+ maxi2byte = self.Maxi2KByte * 1024
+ i2bytesused = usedi2bytes - self.i2bytes
+ timeused = int(time.time() - self.time)
+ new_maxi2rate = int(((maxi2byte - i2bytesused) * 8)/(period - timeused))
+ if new_maxi2rate < (self.Mini2Rate * 1000):
+ new_maxi2rate = self.Mini2Rate * 1000
else:
- new_maxexemptrate = maxexemptrate
+ new_maxi2rate = self.Maxi2Rate * 1000
# Format template parameters for high bandwidth message
params['class'] = "high bandwidth"
- params['bytes'] = format_bytes(exemptbytes - self.exemptbytes)
- params['maxrate'] = bwlimit.format_tc_rate(maxexemptrate)
- params['limit'] = format_bytes(self.ExemptByteMax)
- params['new_maxexemptrate'] = bwlimit.format_tc_rate(new_maxexemptrate)
+ params['bytes'] = format_bytes(usedi2bytes - self.i2bytes)
+ params['limit'] = format_bytes(self.Maxi2KByte * 1024)
+ params['new_maxexemptrate'] = bwlimit.format_tc_rate(new_maxi2rate)
if verbose:
- print "%(slice)s %(class)s " \
- "%(bytes)s of %(limit)s (%(new_maxrate)s/s maxrate)" % params
+ logger.log("bwmon: %(slice)s %(class)s " \
+ "%(bytes)s of %(limit)s (%(new_maxrate)s/s maxrate)" % params)
# Cap high bandwidth burst rate
- if new_maxexemptrate != maxexemptrate:
+ if new_maxi2rate != runningmaxi2rate:
message += template % params
- print "%(slice)s %(class)s capped at %(new_maxexemptrate)s/s" % params
+ logger.log("bwmon: %(slice)s %(class)s capped at %(new_maxexemptrate)s/s" % params)
# Apply parameters
- if new_maxrate != maxrate or new_maxexemptrate != maxexemptrate:
- bwlimit.set(xid = self.xid, maxrate = new_maxrate, maxexemptrate = new_maxexemptrate)
+ if new_maxrate != runningmaxrate or new_maxi2rate != runningmaxi2rate:
+ bwlimit.set(xid = self.xid, maxrate = new_maxrate, maxexemptrate = new_maxi2rate)
# Notify slice
if message and self.emailed == False:
subject = "pl_mom capped bandwidth of slice %(slice)s on %(hostname)s" % params
if debug:
- print subject
- print message + (footer % params)
+ logger.log("bwmon: "+ subject)
+ logger.log("bwmon: "+ message + (footer % params))
else:
self.emailed = True
slicemail(self.name, subject, message + (footer % params))
-def main():
+def GetSlivers(data):
# Defaults
- global datafile, period
+ global datafile, \
+ period, \
+ default_MaxRate, \
+ default_Maxi2Rate, \
+ default_MinRate, \
+ default_MaxKByte,\
+ default_ThreshKByte,\
+ default_Maxi2KByte,\
+ default_Threshi2KByte,\
+ default_Share,\
+ verbose
+
# All slices
names = []
- # Check if we are already running
- writepid("bwmon")
try:
f = open(datafile, "r+")
- if verbose:
- print "Loading %s" % datafile
+ logger.log("bwmon: Loading %s" % datafile)
(version, slices) = pickle.load(f)
f.close()
# Check version of data file
- if version != "$Id: bwmon.py,v 1.20 2007/01/10 16:51:04 faiyaza Exp $":
- print "Not using old version '%s' data file %s" % (version, datafile)
+ if version != "$Id: bwmon.py,v 1.10 2007/02/27 23:03:58 faiyaza Exp $":
+ logger.log("bwmon: Not using old version '%s' data file %s" % (version, datafile))
raise Exception
except Exception:
- version = "$Id: bwmon.py,v 1.20 2007/01/10 16:51:04 faiyaza Exp $"
+ version = "$Id: bwmon.py,v 1.10 2007/02/27 23:03:58 faiyaza Exp $"
slices = {}
- # Get special slice IDs
+ # Get/set special slice IDs
root_xid = bwlimit.get_xid("root")
default_xid = bwlimit.get_xid("default")
- live = []
- # Get actuall running values from tc.
+ if root_xid not in slices.keys():
+ slices[root_xid] = Slice(root_xid, "root", data)
+ slices[root_xid].reset(0, 0, 0, 0, data)
+
+ if default_xid not in slices.keys():
+ slices[default_xid] = Slice(default_xid, "default", data)
+ slices[default_xid].reset(0, 0, 0, 0, data)
+
+ live = {}
+ # Get running slivers. {xid: name}
+ for sliver in data['slivers']:
+ live[bwlimit.get_xid(sliver['name'])] = sliver['name']
+
+ # Setup new slices.
+ # live.xids - runing.xids = new.xids
+ newslicesxids = Set(live.keys()) - Set(slices.keys())
+ for newslicexid in newslicesxids:
+ if newslicexid != None:
+ logger.log("bwmon: New Slice %s" % live[newslicexid])
+ slices[newslicexid] = Slice(newslicexid, live[newslicexid], data)
+ slices[newslicexid].reset(0, 0, 0, 0, data)
+ else:
+ logger.log("bwmon Slice %s doesn't have xid. Must be delegated. Skipping." % live[newslicexid])
+ # Get actual running values from tc.
+ # Update slice totals and bandwidth.
for params in bwlimit.get():
(xid, share,
minrate, maxrate,
minexemptrate, maxexemptrate,
- bytes, i2bytes) = params
- live.append(xid)
-
+ usedbytes, usedi2bytes) = params
+
# Ignore root and default buckets
if xid == root_xid or xid == default_xid:
continue
if name is None:
# Orphaned (not associated with a slice) class
name = "%d?" % xid
+ bwlimit.off(xid)
# Monitor only the specified slices
if names and name not in names:
if slices.has_key(xid):
slice = slices[xid]
if time.time() >= (slice.time + period) or \
- bytes < slice.bytes or i2bytes < slice.i2bytes:
+ usedbytes < slice.bytes or usedi2bytes < slice.i2bytes:
# Reset to defaults every 24 hours or if it appears
# that the byte counters have overflowed (or, more
# likely, the node was restarted or the HTB buckets
# were re-initialized).
- slice.reset(maxrate, maxexemptrate, bytes, exemptbytes)
+ slice.reset(maxrate, maxexemptrate, usedbytes, usedi2bytes, data)
else:
# Update byte counts
- slice.update(maxrate, maxexemptrate, bytes, exemptbytes)
+ slice.update(maxrate, maxexemptrate, usedbytes, usedi2bytes, data)
else:
+ # Just in case. Probably (hopefully) this will never happen.
# New slice, initialize state
- slice = slices[xid] = Slice(xid, name, maxrate, maxexemptrate, bytes, exemptbytes)
+ logger.log("bwmon: New Slice %s" % name)
+ slice = slices[xid] = Slice(xid, name, data)
+ slice.reset(maxrate, maxexemptrate, usedbytes, usedi2bytes, data)
# Delete dead slices
- dead = Set(slices.keys()) - Set(live)
+ dead = Set(slices.keys()) - Set(live.keys())
for xid in dead:
+ if xid == root_xid or xid == default_xid:
+ continue
del slices[xid]
+ bwlimit.off(xid)
- if verbose:
- print "Saving %s" % datafile
+ logger.log("bwmon: Saving %s" % datafile)
f = open(datafile, "w")
pickle.dump((version, slices), f)
f.close()
-
-def GetSlivers(data):
- for sliver in data['slivers']:
- if sliver.has_key('attributes'):
- print sliver
- for attribute in sliver['attributes']:
- if attribute['name'] == "KByteThresh": print attribute['value']
+#def GetSlivers(data):
+# for sliver in data['slivers']:
+# if sliver.has_key('attributes'):
+# print sliver
+# for attribute in sliver['attributes']:
+# if attribute['name'] == "KByteThresh": print attribute['value']
def start(options, config):
pass
-
-if __name__ == '__main__':
- main()
git://git.onelab.eu / nodemanager.git / blobdiff