/usr/lib/python2.7/dist-packages/shinken/daemons/receiverdaemon.py is in shinken-common 1.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 | #!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2009-2012:
# Gabes Jean, naparuba@gmail.com
# Gerhard Lausser, Gerhard.Lausser@consol.de
# Gregory Starck, g.starck@gmail.com
# Hartmut Goebel, h.goebel@goebel-consult.de
#
# This file is part of Shinken.
#
# Shinken is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Shinken 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Shinken. If not, see <http://www.gnu.org/licenses/>.
import os
import time
import traceback
import sys
from multiprocessing import active_children
from Queue import Empty
try:
import shinken.pyro_wrapper as pyro
except ImportError:
sys.exit("Shinken require the Python Pyro module. Please install it.")
Pyro = pyro.Pyro
PYRO_VERSION = pyro.PYRO_VERSION
from shinken.pyro_wrapper import Pyro_exp_pack
from shinken.satellite import Satellite
from shinken.property import PathProp, IntegerProp
from shinken.log import logger
from shinken.external_command import ExternalCommand, ExternalCommandManager
# Our main APP class
class Receiver(Satellite):
properties = Satellite.properties.copy()
properties.update({
'pidfile': PathProp(default='receiverd.pid'),
'port': IntegerProp(default='7773'),
'local_log': PathProp(default='receiverd.log'),
})
def __init__(self, config_file, is_daemon, do_replace, debug, debug_file):
super(Receiver, self).__init__('receiver', config_file, is_daemon, do_replace, debug, debug_file)
# Our arbiters
self.arbiters = {}
# Our pollers and reactionners
self.pollers = {}
self.reactionners = {}
# Modules are load one time
self.have_modules = False
# Can have a queue of external_commands give by modules
# will be taken by arbiter to process
self.external_commands = []
# and the unprocessed one, a buffer
self.unprocessed_external_commands = []
# All broks to manage
self.broks = [] # broks to manage
# broks raised this turn and that need to be put in self.broks
self.broks_internal_raised = []
self.host_assoc = {}
self.direct_routing = False
# Schedulers have some queues. We can simplify call by adding
# elements into the proper queue just by looking at their type
# Brok -> self.broks
# TODO: better tag ID?
# External commands -> self.external_commands
def add(self, elt):
cls_type = elt.__class__.my_type
if cls_type == 'brok':
# For brok, we TAG brok with our instance_id
elt.instance_id = 0
self.broks_internal_raised.append(elt)
return
elif cls_type == 'externalcommand':
logger.debug("Enqueuing an external command: %s" % str(ExternalCommand.__dict__))
self.unprocessed_external_commands.append(elt)
# Call by arbiter to get our external commands
def get_external_commands(self):
res = self.external_commands
self.external_commands = []
return res
def push_host_names(self, sched_id, hnames):
for h in hnames:
self.host_assoc[h] = sched_id
def get_sched_from_hname(self, hname):
i = self.host_assoc.get(hname, None)
e = self.schedulers.get(i, None)
return e
# Get a brok. Our role is to put it in the modules
# THEY MUST DO NOT CHANGE data of b!!!
# REF: doc/receiver-modules.png (4-5)
def manage_brok(self, b):
to_del = []
# Call all modules if they catch the call
for mod in self.modules_manager.get_internal_instances():
try:
mod.manage_brok(b)
except Exception, exp:
logger.warning("The mod %s raise an exception: %s, I kill it" % (mod.get_name(), str(exp)))
logger.warning("Exception type: %s" % type(exp))
logger.warning("Back trace of this kill: %s" % (traceback.format_exc()))
to_del.append(mod)
# Now remove mod that raise an exception
self.modules_manager.clear_instances(to_del)
# Get 'objects' from external modules
# from now nobody use it, but it can be useful
# for a module like livestatus to raise external
# commands for example
def get_objects_from_from_queues(self):
for f in self.modules_manager.get_external_from_queues():
full_queue = True
while full_queue:
try:
o = f.get(block=False)
self.add(o)
except Empty:
full_queue = False
def do_stop(self):
act = active_children()
for a in act:
a.terminate()
a.join(1)
super(Receiver, self).do_stop()
def setup_new_conf(self):
conf = self.new_conf
self.new_conf = None
self.cur_conf = conf
# Got our name from the globals
if 'receiver_name' in conf['global']:
name = conf['global']['receiver_name']
else:
name = 'Unnamed receiver'
self.name = name
logger.load_obj(self, name)
self.direct_routing = conf['global']['direct_routing']
g_conf = conf['global']
# If we've got something in the schedulers, we do not want it anymore
for sched_id in conf['schedulers']:
already_got = False
# We can already got this conf id, but with another address
if sched_id in self.schedulers:
new_addr = conf['schedulers'][sched_id]['address']
old_addr = self.schedulers[sched_id]['address']
new_port = conf['schedulers'][sched_id]['port']
old_port = self.schedulers[sched_id]['port']
# Should got all the same to be ok :)
if new_addr == old_addr and new_port == old_port:
already_got = True
if already_got:
logger.info("[%s] We already got the conf %d (%s)" % (self.name, sched_id, conf['schedulers'][sched_id]['name']))
wait_homerun = self.schedulers[sched_id]['wait_homerun']
actions = self.schedulers[sched_id]['actions']
external_commands = self.schedulers[sched_id]['external_commands']
con = self.schedulers[sched_id]['con']
s = conf['schedulers'][sched_id]
self.schedulers[sched_id] = s
if s['name'] in g_conf['satellitemap']:
s.update(g_conf['satellitemap'][s['name']])
uri = pyro.create_uri(s['address'], s['port'], 'ForArbiter', self.use_ssl)
self.schedulers[sched_id]['uri'] = uri
if already_got:
self.schedulers[sched_id]['wait_homerun'] = wait_homerun
self.schedulers[sched_id]['actions'] = actions
self.schedulers[sched_id]['external_commands'] = external_commands
self.schedulers[sched_id]['con'] = con
else:
self.schedulers[sched_id]['wait_homerun'] = {}
self.schedulers[sched_id]['actions'] = {}
self.schedulers[sched_id]['external_commands'] = []
self.schedulers[sched_id]['con'] = None
self.schedulers[sched_id]['running_id'] = 0
self.schedulers[sched_id]['active'] = s['active']
# Do not connect if we are a passive satellite
if self.direct_routing and not already_got:
# And then we connect to it :)
self.pynag_con_init(sched_id)
logger.debug("[%s] Sending us configuration %s" % (self.name, conf))
if not self.have_modules:
self.modules = mods = conf['global']['modules']
self.have_modules = True
logger.info("We received modules %s " % mods)
# Set our giving timezone from arbiter
use_timezone = conf['global']['use_timezone']
if use_timezone != 'NOTSET':
logger.info("Setting our timezone to %s" % use_timezone)
os.environ['TZ'] = use_timezone
time.tzset()
# Now create the external commander. It's just here to dispatch
# the commands to schedulers
e = ExternalCommandManager(None, 'receiver')
e.load_receiver(self)
self.external_command = e
# Take all external commands, make packs and send them to
# the schedulers
def push_external_commands_to_schedulers(self):
# If we are not in a direct routing mode, just bailout after
# faking resolving the commands
if not self.direct_routing:
self.external_commands.extend(self.unprocessed_external_commands)
self.unprocessed_external_commands = []
return
# Now get all external commands and put them into the
# good schedulers
for ext_cmd in self.unprocessed_external_commands:
self.external_command.resolve_command(ext_cmd)
self.external_commands.append(ext_cmd)
# And clean the previous one
self.unprocessed_external_commands = []
# Now for all alive schedulers, send the commands
for sched_id in self.schedulers:
sched = self.schedulers[sched_id]
extcmds = sched['external_commands']
cmds = [extcmd.cmd_line for extcmd in extcmds]
con = sched.get('con', None)
sent = False
if not con:
logger.warning("The scheduler is not connected" % sched)
self.pynag_con_init(sched_id)
con = sched.get('con', None)
# If there are commands and the scheduler is alive
if len(cmds) > 0 and con:
logger.debug("Sending %d commands to scheduler %s" % (len(cmds), sched))
try:
con.run_external_commands(cmds)
sent = True
# Not connected or sched is gone
except (Pyro_exp_pack, KeyError), exp:
logger.debug('manage_returns exception:: %s,%s ' % (type(exp), str(exp)))
try:
logger.debug(''.join(PYRO_VERSION < "4.0" and Pyro.util.getPyroTraceback(exp) or Pyro.util.getPyroTraceback()))
except:
pass
self.pynag_con_init(sched_id)
return
except AttributeError, exp: # the scheduler must not be initialized
logger.debug('manage_returns exception:: %s,%s ' % (type(exp), str(exp)))
except Exception, exp:
logger.error("A satellite raised an unknown exception: %s (%s)" % (exp, type(exp)))
try:
logger.debug(''.join(PYRO_VERSION < "4.0" and Pyro.util.getPyroTraceback(exp) or Pyro.util.getPyroTraceback()))
except:
pass
raise
# If we sent or not the commands, just clean the scheduler list.
self.schedulers[sched_id]['external_commands'] = []
# If we sent them, remove the commands of this scheduler of the arbiter list
if sent:
# and remove them from the list for the arbiter (if not, we will send it twice
for extcmd in extcmds:
self.external_commands.remove(extcmd)
def do_loop_turn(self):
sys.stdout.write(".")
sys.stdout.flush()
# Begin to clean modules
self.check_and_del_zombie_modules()
# Now we check if arbiter speak to us in the pyro_daemon.
# If so, we listen for it
# When it push us conf, we reinit connections
self.watch_for_new_conf(0.0)
if self.new_conf:
self.setup_new_conf()
# # Maybe the last loop we raised some broks internally
# # we should integrate them in broks
# self.integer_internal_broks()
# # And from schedulers
# self.get_new_broks(type='scheduler')
# # And for other satellites
# self.get_new_broks(type='poller')
# self.get_new_broks(type='reactionner')
# # Sort the brok list by id
# self.broks.sort(sort_by_ids)
# # and for external queues
# # REF: doc/receiver-modules.png (3)
# for b in self.broks:
# # if b.type != 'log':
# # print "Receiver: put brok id: %d" % b.id
# for q in self.modules_manager.get_external_to_queues():
# q.put(b)
# # We must had new broks at the end of the list, so we reverse the list
# self.broks.reverse()
start = time.time()
## while len(self.broks) != 0:
## now = time.time()
## # Do not 'manage' more than 1s, we must get new broks
## # every 1s
## if now - start > 1:
## break
##
## b = self.broks.pop()
## # Ok, we can get the brok, and doing something with it
## # REF: doc/receiver-modules.png (4-5)
## self.manage_brok(b)
##
## nb_broks = len(self.broks)
##
## # Ok we manage brok, but we still want to listen to arbiter
## self.watch_for_new_conf(0.0)
##
## # if we got new broks here from arbiter, we should break the loop
## # because such broks will not be managed by the
## # external modules before this loop (we pop them!)
## if len(self.broks) != nb_broks:
## break
# Maybe external modules raised 'objects'
# we should get them
self.get_objects_from_from_queues()
self.push_external_commands_to_schedulers()
# Maybe we do not have something to do, so we wait a little
if len(self.broks) == 0:
# print "watch new conf 1: begin", len(self.broks)
self.watch_for_new_conf(1.0)
# print "get enw broks watch new conf 1: end", len(self.broks)
# Main function, will loop forever
def main(self):
try:
self.load_config_file()
# Look if we are enabled or not. If ok, start the daemon mode
self.look_for_early_exit()
for line in self.get_header():
logger.info(line)
logger.info("[Receiver] Using working directory: %s" % os.path.abspath(self.workdir))
self.do_daemon_init_and_start()
self.uri2 = self.pyro_daemon.register(self.interface, "ForArbiter")
logger.debug("The Arbiter uri it at %s" % self.uri2)
# We wait for initial conf
self.wait_for_initial_conf()
if not self.new_conf:
return
self.setup_new_conf()
self.modules_manager.set_modules(self.modules)
self.do_load_modules()
# and start external modules too
self.modules_manager.start_external_instances()
# Do the modules part, we have our modules in self.modules
# REF: doc/receiver-modules.png (1)
# Now the main loop
self.do_mainloop()
except Exception, exp:
logger.critical("I got an unrecoverable error. I have to exit")
logger.critical("You can log a bug ticket at https://github.com/naparuba/shinken/issues/new to get help")
logger.critical("Back trace of it: %s" % (traceback.format_exc()))
raise
|