124 lines
3.5 KiB
Python
124 lines
3.5 KiB
Python
# Copyright (C) 2008, 2009 Red Hat, Inc.
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# Authors: Phil Knirsch
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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import time,os,sys,locale,ConfigParser
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import logging, tuned_logging
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log = logging.getLogger("tuned")
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class Tuned:
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def __init__(self):
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self.interval = 10
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self.mp = []
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self.tp = []
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self.verbose = False
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def _initplugins(self, path, module, store):
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log.debug("Initializing plugins (%s)" % module)
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_files = map(lambda v: v[:-3], filter(lambda v: v[-3:] == ".py" and \
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v != "__init__.py" and \
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v[0] != '.', \
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os.listdir(path+"/"+module)))
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locale.setlocale(locale.LC_ALL, "C")
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_files.sort()
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locale.setlocale(locale.LC_ALL, "")
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for _i in _files:
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_cmd = "from %s.%s import _plugin" % (module, _i)
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exec _cmd
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store.append(_plugin)
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def init(self, path, cfgfile, debug = False):
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self.config = ConfigParser.RawConfigParser()
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self.config.read(cfgfile)
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# logging
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if debug:
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log.setLevel(logging.DEBUG)
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else:
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if self.config.has_option("main", "logging"):
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log.setLevelString(self.config.get("main", "logging"))
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else:
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log.setLevel(logging.INFO)
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if self.config.has_option("main", "logging_disable"):
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tuned_logging.disableString(self.config.get("main", "logging_disable"))
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# main settings
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log.debug("Parsing config file")
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if not self.config.has_section("main"):
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self.config.add_section("main")
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if self.config.has_option("main", "interval"):
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self.interval = self.config.getint("main", "interval")
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else:
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self.config.set("main", "interval", self.interval)
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if self.config.has_option("main", "pidfile"):
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self.pidfile = self.config.get("main", "pidfile")
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else:
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self.pidfile = "/var/run/tuned/tuned.pid"
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# loading, setting logging level and initializing plugins
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self._initplugins(path, "monitorplugins", self.mp)
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self._initplugins(path, "tuningplugins", self.tp)
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for p in self.mp + self.tp:
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if not debug and self.config.has_option(p.config_section, "logging"):
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logging.getLogger("tuned.%s" % p.config_section.lower()).setLevelString(self.config.get(p.config_section, "logging"))
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p.init(self.config)
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def run(self):
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try:
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fd = os.open(self.pidfile, os.O_CREAT|os.O_TRUNC|os.O_WRONLY , 0644)
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os.write(fd, "%d" % os.getpid())
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os.close(fd)
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except:
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log.warning("Cannot write to pidfile (%s)" % self.pidfile)
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log.info("Running...")
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while True:
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lh = {}
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for p in self.mp:
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load = p.getLoad()
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if load != None:
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lh.update(load)
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for p in self.tp:
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p.setTuning(lh)
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time.sleep(self.interval)
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def cleanup(self, signum=0, frame=None):
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log.info("Cleaning up...")
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for p in self.mp:
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p.cleanup()
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for p in self.tp:
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p.cleanup()
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try:
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os.unlink(self.pidfile)
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except:
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log.warning("Cannot remove pidfile (%s)" % self.pidfile)
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tuned = Tuned()
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