# Faiyaz Ahmed <faiyaza@cs.princeton.edu>
# Copyright (C) 2004-2006 The Trustees of Princeton University
#
-# $Id: bwmon.py,v 1.4 2006/06/02 04:00:00 mlhuang Exp $
+# $Id: bwmon.py,v 1.7 2006/07/10 19:19:07 faiyaza Exp $
#
import syslog
time - beginning of recording period in UNIX seconds
bytes - low bandwidth bytes transmitted at the beginning of the recording period
exemptbytes - high bandwidth bytes transmitted at the beginning of the recording period (for I2 -F)
- avgrate - average low bandwidth rate to enforce over the recording period
- avgexemptrate - average high bandwidth rate to enforce over the recording period (for I2 -F)
last_avgrate - last recorded avgrate from NM
last_maxrate - last recorded maxrate from NM
last_avgexemptrate - last recorded avgexemptrate from NM
def __init__(self, xid, name, maxrate, maxexemptrate, bytes, exemptbytes):
self.xid = xid
self.name = name
+ self.time = 0
+ self.exemptbytes = 0
self.last_maxrate = default_maxrate
self.last_avgrate = default_avgrate
self.last_avgexemptrate = default_avgexemptrate
self.bytes = bytes
self.exemptbytes = exemptbytes
+ # If NM except"ns below, and new_max* doesn't get set, use last.
+ new_maxrate = self.last_maxrate
+ new_maxexemptrate = self.last_maxexemptrate
+
# Query Node Manager for max rate overrides
try:
vals = nm.query(self.name, [('nm_net_max_rate', self.last_maxrate),
it will get to send slightly more than the average daily byte
limit.
"""
+
+ # If NM except'ns below, and avg*rate doesn't get set, use last_*.
+ avgrate = self.last_avgrate
+ avgexemptrate = self.last_avgexemptrate
# Query Node Manager for max average rate overrides
try:
- (self.avgrate, self.avgexemptrate) = nm.query(self.name,
+ (avgrate, avgexemptrate) = nm.query(self.name,
[('nm_net_avg_rate', self.last_avgrate),
('nm_net_avg_exempt_rate', self.last_avgexemptrate)])
#If NM is alive, and there is a cap, update new
- self.last_avgexemptrate = self.avgexemptrate
- self.last_avgrate = self.avgrate
+ self.last_avgexemptrate = avgexemptrate
+ self.last_avgrate = avgrate
except Exception, err:
print "Warning: Exception received while querying NM:", err
'date': time.asctime(time.gmtime()) + " GMT",
'period': format_period(period)}
- bytelimit = self.avgrate * period / bits_per_byte
+ bytelimit = avgrate * period / bits_per_byte
if bytes >= (self.bytes + bytelimit) and \
- maxrate > self.avgrate:
- new_maxrate = self.avgrate
+ maxrate > avgrate:
+ new_maxrate = avgrate
else:
new_maxrate = maxrate
params['bytes'] = format_bytes(bytes - self.bytes)
params['maxrate'] = bwlimit.format_tc_rate(maxrate)
params['limit'] = format_bytes(bytelimit)
- params['avgrate'] = bwlimit.format_tc_rate(self.avgrate)
+ params['avgrate'] = bwlimit.format_tc_rate(avgrate)
if verbose:
print "%(slice)s %(class)s " \
message += template % params
print "%(slice)s %(class)s capped at %(avgrate)s (%(bytes)s/%(limit)s)" % params
- exemptbytelimit = self.avgexemptrate * period / bits_per_byte
+ exemptbytelimit = avgexemptrate * period / bits_per_byte
if exemptbytes >= (self.exemptbytes + exemptbytelimit) and \
- maxexemptrate > self.avgexemptrate:
- new_maxexemptrate = self.avgexemptrate
+ maxexemptrate > avgexemptrate:
+ new_maxexemptrate = avgexemptrate
else:
new_maxexemptrate = maxexemptrate
params['bytes'] = format_bytes(exemptbytes - self.exemptbytes)
params['maxrate'] = bwlimit.format_tc_rate(maxexemptrate)
params['limit'] = format_bytes(exemptbytelimit)
- params['avgrate'] = bwlimit.format_tc_rate(self.avgexemptrate)
+ params['avgrate'] = bwlimit.format_tc_rate(avgexemptrate)
if verbose:
print "%(slice)s %(class)s " \
(version, slices) = pickle.load(f)
f.close()
# Check version of data file
- if version != "$Id: bwmon.py,v 1.4 2006/06/02 04:00:00 mlhuang Exp $":
+ if version != "$Id: bwmon.py,v 1.7 2006/07/10 19:19:07 faiyaza Exp $":
print "Not using old version '%s' data file %s" % (version, datafile)
raise Exception
except Exception:
- version = "$Id: bwmon.py,v 1.4 2006/06/02 04:00:00 mlhuang Exp $"
+ version = "$Id: bwmon.py,v 1.7 2006/07/10 19:19:07 faiyaza Exp $"
slices = {}
# Get special slice IDs