# Copyright (C) 2014 Michele Baldessari # 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 2 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, write to the Free Software # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. from sos.plugins import Plugin, RedHatPlugin, DebianPlugin import os import os.path from socket import gethostname class Pcp(Plugin, RedHatPlugin, DebianPlugin): """Performance Co-Pilot data """ plugin_name = 'pcp' profiles = ('system', 'performance') packages = ('pcp',) pcp_conffile = '/etc/pcp.conf' # size-limit total PCP log data collected by default (MB) pcplog_totalsize = 100 pcp_sysconf_dir = None pcp_var_dir = None pcp_log_dir = None pcp_hostname = '' def get_size(self, path): total_size = 0 for dirpath, dirnames, filenames in os.walk(path): for f in filenames: fp = os.path.join(dirpath, f) total_size += os.path.getsize(fp) return total_size def pcp_parse_conffile(self): try: pcpconf = open(self.pcp_conffile, "r") lines = pcpconf.readlines() pcpconf.close() except: return False env_vars = {} for line in lines: if line.startswith('#'): continue try: (key, value) = line.strip().split('=') env_vars[key] = value except: pass try: self.pcp_sysconf_dir = env_vars['PCP_SYSCONF_DIR'] self.pcp_var_dir = env_vars['PCP_VAR_DIR'] self.pcp_log_dir = env_vars['PCP_LOG_DIR'] except: # Fail if all three env variables are not found return False return True def setup(self): if self.get_option("all_logs"): self.pcplog_totalsize = 0 if not self.pcp_parse_conffile(): self._log_warn("could not parse %s" % self.pcp_conffile) return # Add PCP_SYSCONF_DIR (/etc/pcp) and PCP_VAR_DIR (/var/lib/pcp/config) # unconditionally. Obviously if someone messes up their /etc/pcp.conf # in a ridiculous way (i.e. setting PCP_SYSCONF_DIR to '/') this will # break badly. var_conf_dir = os.path.join(self.pcp_var_dir, 'config') self.add_copy_spec([ self.pcp_sysconf_dir, var_conf_dir ]) # We explicitely avoid /var/lib/pcp/config/{pmchart,pmlogconf,pmieconf, # pmlogrewrite} as in 99% of the cases they are just copies from the # rpms. It does not make up for a lot of size but it contains many # files self.add_forbidden_path(os.path.join(var_conf_dir, 'pmchart')) self.add_forbidden_path(os.path.join(var_conf_dir, 'pmlogconf')) self.add_forbidden_path(os.path.join(var_conf_dir, 'pmieconf')) self.add_forbidden_path(os.path.join(var_conf_dir, 'pmlogrewrite')) # The *default* directory structure for pmlogger is the following: # Dir: PCP_LOG_DIR/pmlogger/HOST/ (we only collect the HOST data # itself) # - YYYYMMDD.HH.MM.{N,N.index,N.meta} N in [0,1,...] # - Latest # - pmlogger.{log,log.prior} # # Can be changed via configuration in PCP_SYSCONF_DIR/pmlogger/control # As a default strategy, collect PCP_LOG_DIR/pmlogger/* only if the # total size is moderately small: < 100MB. Override is possible via # the 'all_pcplogs' option. # FIXME: Doing a recursive size check because add_copy_spec_limit # won't work for directory trees. I.e. we can't say fetch /foo/bar/ # only if it is < 100MB. To be killed once the Plugin base class will # add a method for this use case via issue #281 self.pcp_hostname = gethostname() # Make sure we only add PCP_LOG_DIR/pmlogger/`hostname` if hostname # is set, otherwise we'd collect everything if self.pcp_hostname != '': path = os.path.join(self.pcp_log_dir, 'pmlogger', self.pcp_hostname) dirsize = self.get_size(path) max_mb_size = self.pcplog_totalsize * 1024 * 1024 # If explicitely asked collect all logs, otherwise only if < 100MB # in total if self.pcplog_totalsize == 0 or dirsize < max_mb_size: if os.path.isdir(path): self.add_copy_spec(path) else: self._log_warn("%s not found" % path) else: self._log_warn("skipped %s. Size %d bigger than %d" % (path, dirsize, max_mb_size)) else: self._log_warn("pcp_hostname was not set. Skipping.") self.add_copy_spec([ # Collect PCP_LOG_DIR/pmcd and PCP_LOG_DIR/NOTICES os.path.join(self.pcp_log_dir, 'pmcd'), os.path.join(self.pcp_log_dir, 'NOTICES*'), # Collect PCP_VAR_DIR/pmns os.path.join(self.pcp_var_dir, 'pmns'), # Also collect any other log and config files # (as suggested by fche) os.path.join(self.pcp_log_dir, '*/*.log*'), os.path.join(self.pcp_log_dir, '*/*/*.log*'), os.path.join(self.pcp_log_dir, '*/*/config*') ]) # Need to get the current status of the PCP infrastructure self.add_cmd_output("pcp") # vim: et ts=4 sw=4