mirror of
https://salsa.debian.org/freeipa-team/freeipa.git
synced 2024-12-25 16:31:08 -06:00
1e9a238f35
Read the FINAL lines from the Apache error log, optionally from a start time, and calculate the total cache hits and misses and calculate the average read savings. https://pagure.io/freeipa/issue/8798 Signed-off-by: Rob Crittenden <rcritten@redhat.com> Reviewed-By: Rafael Guterres Jeffman <rjeffman@redhat.com>
119 lines
3.5 KiB
Python
119 lines
3.5 KiB
Python
#!/usr/bin/python3
|
|
#
|
|
# Copyright (C) 2021 FreeIPA Contributors see COPYING for license
|
|
#
|
|
|
|
# This program 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.
|
|
#
|
|
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from __future__ import division
|
|
|
|
from datetime import datetime
|
|
import logging
|
|
import re
|
|
|
|
from ipapython import admintool
|
|
from ipalib.facts import is_ipa_configured
|
|
|
|
|
|
# r'(?P<command>\S+)/1\(.*\): (?P<result>\S+) etime=(?P<etime>\d+)'
|
|
TIME_RE = re.compile(
|
|
r'\[(?P<date>.*)\] \[.*\].* \[pid \d+:tid \d+\] \[remote .*\] '
|
|
r'ipa: DEBUG: FINAL: Hits (?P<hits>\d+) Misses (?P<misses>\d+) '
|
|
r'Size (?P<size>\d+)'
|
|
)
|
|
|
|
DATE_FORMAT = '%a %b %d %H:%M:%S.%f %Y'
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class cachelog(admintool.AdminTool):
|
|
command_name = "cachelog"
|
|
|
|
usage = "%prog [options]"
|
|
description = "Parse the Apache error log for cache performance data. " \
|
|
"Enable debugging by creating /etc/ipa/server.conf with " \
|
|
"the contents: [global]\\ndebug = True"
|
|
|
|
def __init__(self, options, args):
|
|
super(cachelog, self).__init__(options, args)
|
|
self.since = None
|
|
|
|
@classmethod
|
|
def add_options(cls, parser):
|
|
super(cachelog, cls).add_options(parser, debug_option=True)
|
|
parser.add_option(
|
|
"--command",
|
|
dest="command",
|
|
action="store",
|
|
default=None,
|
|
help="Command to analyze",
|
|
)
|
|
parser.add_option(
|
|
"--start-time",
|
|
dest="start_time",
|
|
action="store",
|
|
default=None,
|
|
help="time to begin analyzing logfile from, e.g. "
|
|
"Fri May 7 16:33:08.0 2021",
|
|
)
|
|
parser.add_option(
|
|
"--file",
|
|
dest="file",
|
|
action="store",
|
|
default="/var/log/httpd/error_log",
|
|
help="Log file to parse",
|
|
)
|
|
|
|
def validate_options(self):
|
|
super(cachelog, self).validate_options(needs_root=True)
|
|
|
|
if self.options.start_time:
|
|
self.since = datetime.strptime(
|
|
self.options.start_time,
|
|
DATE_FORMAT
|
|
)
|
|
|
|
def run(self):
|
|
super(cachelog, self).run()
|
|
|
|
if not is_ipa_configured():
|
|
logger.error("IPA server is not configured on this system.")
|
|
raise admintool.ScriptError()
|
|
|
|
with open(self.options.file, 'r') as f:
|
|
data = f.read()
|
|
|
|
matches = list(re.finditer(TIME_RE, data))
|
|
|
|
hits = 0
|
|
misses = 0
|
|
count = 0
|
|
|
|
for match in matches:
|
|
if self.since:
|
|
logtime = datetime.strptime(match.group('date'), DATE_FORMAT)
|
|
if logtime < self.since:
|
|
continue
|
|
hits += int(match.group('hits'))
|
|
misses += int(match.group('misses'))
|
|
count += 1
|
|
|
|
print('Total reads %d, hits %d, misses %d, avg %1.4f' %
|
|
(hits + misses, hits, misses, hits / (hits + misses)))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
cachelog.run_cli()
|