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# $Id$
#
# Copyright (C) 2011-2012 Internet Systems Consortium ("ISC")
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
"""
Parse traffic data out of rynic XML output, whack it a bit, print some
summaries and run gnuplot to draw some pictures.
"""
plot_all_hosts = False
window_hours = 72
import mailbox
import sys
import urlparse
import os
import datetime
import subprocess
import shelve
from xml.etree.cElementTree import (ElementTree as ElementTree,
fromstring as ElementTreeFromString)
def parse_utc(s):
return datetime.datetime.strptime(s, "%Y-%m-%dT%H:%M:%SZ")
class Rsync_History(object):
"""
An Rsync_History object represents one rsync connection.
"""
def __init__(self, elt):
self.error = elt.get("error")
self.uri = elt.text.strip()
self.hostname = urlparse.urlparse(self.uri).hostname or None
self.elapsed = parse_utc(elt.get("finished")) - parse_utc(elt.get("started"))
class Host(object):
"""
A host object represents all the data collected for one host. Note
that it (usually) contains a list of all the sessions in which this
host appears.
"""
def __init__(self, hostname, session_id):
self.hostname = hostname
self.session_id = session_id
self.elapsed = datetime.timedelta(0)
self.connection_count = 0
self.dead_connections = 0
self.uris = set()
self.total_connection_time = datetime.timedelta(0)
def add_rsync_history(self, h):
self.connection_count += 1
self.elapsed += h.elapsed
self.dead_connections += int(h.error is not None)
self.total_connection_time += h.elapsed
def add_uri(self, u):
self.uris.add(u)
def finalize(self):
self.object_count = len(self.uris)
del self.uris
@property
def failed(self):
return 1 if self.dead_connections else 0
@property
def seconds_per_object(self):
if self.failed:
return None
else:
return float(self.elapsed.days * 24 * 60 * 60 +
self.elapsed.seconds +
self.elapsed.microseconds / 10**6) / float(self.object_count)
@property
def objects_per_connection(self):
if self.failed:
return None
else:
return float(self.object_count) / float(self.connection_count)
@property
def average_connection_time(self):
return float(self.total_connection_time.days * 24 * 60 * 60 +
self.total_connection_time.seconds +
self.total_connection_time.microseconds / 10**6) / float(self.connection_count)
class Format(object):
def __init__(self, attr, title, fmt, ylabel = ""):
self.attr = attr
self.title = title
self.width = len(title) - int("%" in fmt)
self.fmt = "%%%d%s" % (self.width, fmt)
self.oops = "*" * self.width
self.ylabel = ylabel
def __call__(self, obj):
try:
value = getattr(obj, self.attr)
return None if value is None else self.fmt % value
except ZeroDivisionError:
return self.oops
format = (Format("connection_count", "Connections", "d", "Connections To Repository (Per Session)"),
Format("object_count", "Objects", "d", "Objects In Repository (Distinct URIs Per Session)"),
Format("objects_per_connection", "Objects/Connection", ".3f", "Objects In Repository / Connections To Repository"),
Format("seconds_per_object", "Seconds/Object", ".3f", "Seconds To Transfer / Object (Average Per Session)"),
Format("failure_rate_running", "Failure Rate", ".3f%%", "Sessions With Failed Connections Within Last %d Hours" % window_hours),
Format("average_connection_time", "Average Connection", ".3f", "Seconds / Connection (Average Per Session)"),
Format("hostname", "Hostname", "s"))
format_dict = dict((fmt.attr, fmt) for fmt in format)
def format_field(self, name):
result = self.format_dict[name](self)
return None if result is None else result.strip()
class Session(dict):
"""
A session corresponds to one XML file. This is a dictionary of Host
objects, keyed by hostname.
"""
def __init__(self, session_id, msg_key):
self.session_id = session_id
self.msg_key = msg_key
self.date = parse_utc(session_id)
self.calculated_failure_history = False
@property
def hostnames(self):
return set(self.iterkeys())
def get_plot_row(self, name, hostnames):
return (self.session_id,) + tuple(self[h].format_field(name) if h in self else "" for h in hostnames)
def add_rsync_history(self, h):
if h.hostname not in self:
self[h.hostname] = Host(h.hostname, self.session_id)
self[h.hostname].add_rsync_history(h)
def add_uri(self, u):
h = urlparse.urlparse(u).hostname
if h and h in self:
self[h].add_uri(u)
def finalize(self):
for h in self.itervalues():
h.finalize()
def calculate_failure_history(self, sessions):
start = self.date - datetime.timedelta(hours = window_hours)
sessions = tuple(s for s in sessions if s.date <= self.date and s.date > start)
for hostname, h in self.iteritems():
i = n = 0
for s in sessions:
if hostname in s:
i += s[hostname].failed
n += 1
h.failure_rate_running = float(100 * i) / n
self.calculated_failure_history = True
def plotter(f, hostnames, field, logscale = False):
plotlines = sorted(session.get_plot_row(field, hostnames) for session in sessions)
title = Host.format_dict[field].title
ylabel = Host.format_dict[field].ylabel
n = len(hostnames) + 1
assert all(n == len(plotline) for plotline in plotlines)
if "%%" in Host.format_dict[field].fmt:
f.write('set format y "%.0f%%"\n')
else:
f.write('set format y\n')
if logscale:
f.write("set logscale y\n")
else:
f.write("unset logscale y\n")
f.write("""
set xdata time
set timefmt '%Y-%m-%dT%H:%M:%SZ'
#set format x '%m/%d'
#set format x '%b%d'
#set format x '%Y-%m-%d'
set format x '%Y-%m'
#set title '""" + title + """'
set ylabel '""" + ylabel + """'
plot""" + ",".join(" '-' using 1:2 with linespoints pointinterval 500 title '%s'" % h for h in hostnames) + "\n")
for i in xrange(1, n):
for plotline in plotlines:
if plotline[i] is not None:
f.write("%s %s\n" % (plotline[0], plotline[i].rstrip("%")))
f.write("e\n")
def plot_hosts(hostnames, fields):
for field in fields:
for logscale in (False, True):
gnuplot = subprocess.Popen(("gnuplot",), stdin = subprocess.PIPE)
gnuplot.stdin.write("set terminal pdf\n")
gnuplot.stdin.write("set output '%s/%s-%s.pdf'\n" % (outdir, field, "log" if logscale else "linear"))
plotter(gnuplot.stdin, hostnames, field, logscale = logscale)
gnuplot.stdin.close()
gnuplot.wait()
outdir = "images"
if not os.path.exists(outdir):
os.makedirs(outdir)
mb = mailbox.Maildir("/u/sra/rpki/rcynic-xml", factory = None, create = False)
if sys.platform == "darwin": # Sigh
shelf = shelve.open("rcynic-xml", "c")
else:
shelf = shelve.open("rcynic-xml.db", "c")
sessions = []
latest = None
parsed = 0
for i, key in enumerate(mb.iterkeys(), 1):
sys.stderr.write("\r%s %d/%d/%d..." % ("|\\-/"[i & 3], parsed, i, len(mb)))
if key in shelf:
session = shelf[key]
else:
sys.stderr.write("%s..." % key)
assert not mb[key].is_multipart()
input = ElementTreeFromString(mb[key].get_payload())
date = input.get("date")
sys.stderr.write("%s..." % date)
session = Session(date, key)
for elt in input.findall("rsync_history"):
session.add_rsync_history(Rsync_History(elt))
for elt in input.findall("validation_status"):
if elt.get("generation") == "current":
session.add_uri(elt.text.strip())
session.finalize()
shelf[key] = session
parsed += 1
sessions.append(session)
if latest is None or session.session_id > latest.session_id:
latest = session
sys.stderr.write("\n")
shelf.sync()
for session in sessions:
if not getattr(session, "calculated_failure_history", False):
session.calculate_failure_history(sessions)
shelf[session.msg_key] = session
if plot_all_hosts:
hostnames = sorted(reduce(lambda x, y: x | y,
(s.hostnames for s in sessions),
set()))
else:
hostnames = ("rpki.apnic.net", "rpki.ripe.net", "repository.lacnic.net", "rpki.afrinic.net", "rpki.arin.net",
#"localcert.ripe.net", "arin.rpki.net", "repo0.rpki.net", "rgnet.rpki.net",
"ca0.rpki.net")
plot_hosts(hostnames, [fmt.attr for fmt in Host.format if fmt.attr != "hostname"])
if latest is not None:
f = open("rcynic.xml", "wb")
f.write(mb[latest.msg_key].get_payload())
f.close()
shelf.close()
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