This file is indexed.

/usr/lib/python2.7/dist-packages/shinken/scheduler.py is in shinken-common 2.0.3-4.

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
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
#!/usr/bin/env 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 time
import os
import cStringIO
import sys
import tempfile
import traceback
import json
import cPickle
import zlib
from Queue import Empty

from shinken.external_command import ExternalCommand
from shinken.check import Check
from shinken.notification import Notification
from shinken.eventhandler import EventHandler
from shinken.brok import Brok
from shinken.downtime import Downtime
from shinken.contactdowntime import ContactDowntime
from shinken.comment import Comment
from shinken.acknowledge import Acknowledge
from shinken.log import logger
from shinken.util import nighty_five_percent
from shinken.load import Load
from shinken.http_client import HTTPClient, HTTPExceptions


class Scheduler:
    """Please Add a Docstring to describe the class here"""

    def __init__(self, scheduler_daemon):
        self.sched_daemon = scheduler_daemon
        # When set to false by us, we die and arbiter launch a new Scheduler
        self.must_run = True

        self.waiting_results = []  # satellites returns us results
        # and to not wait for them, we put them here and
        # use them later

        # Every N seconds we call functions like consume, del zombies
        # etc. All of theses functions are in recurrent_works with the
        # every tick to run. So must be an integer > 0
        # The order is important, so make key an int.
        # TODO: at load, change value by configuration one (like reaper time, etc)
        self.recurrent_works = {
            0: ('update_downtimes_and_comments', self.update_downtimes_and_comments, 1),
            1: ('schedule', self.schedule, 1), # just schedule
            2: ('consume_results', self.consume_results, 1), # incorporate checks and dependencies
            3: ('get_new_actions', self.get_new_actions, 1), # now get the news actions (checks, notif) raised
            4: ('get_new_broks', self.get_new_broks, 1), # and broks
            5: ('scatter_master_notifications', self.scatter_master_notifications, 1),
            6: ('delete_zombie_checks', self.delete_zombie_checks, 1),
            7: ('delete_zombie_actions', self.delete_zombie_actions, 1),
            # 3: (self.delete_unwanted_notifications, 1),
            8: ('check_freshness', self.check_freshness, 10),
            9: ('clean_caches', self.clean_caches, 1),
            10: ('update_retention_file', self.update_retention_file, 3600),
            11: ('check_orphaned', self.check_orphaned, 60),
            # For NagVis like tools: update our status every 10s
            12: ('get_and_register_update_program_status_brok', self.get_and_register_update_program_status_brok, 10),
            # Check for system time change. And AFTER get new checks
            # so they are changed too.
            13: ('check_for_system_time_change', self.sched_daemon.check_for_system_time_change, 1),
            # launch if need all internal checks
            14: ('manage_internal_checks', self.manage_internal_checks, 1),
            # clean some times possible overridden Queues, to do not explode in memory usage
            # every 1/4 of hour
            15: ('clean_queues', self.clean_queues, 1),
            # Look for new business_impact change by modulation every minute
            16: ('update_business_values', self.update_business_values, 60),
            # Reset the topology change flag if need
            17: ('reset_topology_change_flag', self.reset_topology_change_flag, 1),
            18: ('check_for_expire_acknowledge', self.check_for_expire_acknowledge, 1),
            19: ('send_broks_to_modules', self.send_broks_to_modules, 1),
            20: ('get_objects_from_from_queues', self.get_objects_from_from_queues, 1),
        }

        # stats part
        self.nb_checks_send = 0
        self.nb_actions_send = 0
        self.nb_broks_send = 0
        self.nb_check_received = 0

        # Log init
        logger.load_obj(self)

        self.instance_id = 0  # Temporary set. Will be erase later

        # Ours queues
        self.checks = {}
        self.actions = {}
        self.downtimes = {}
        self.contact_downtimes = {}
        self.comments = {}
        self.broks = {}

        # Some flags
        self.has_full_broks = False  # have a initial_broks in broks queue?
        self.need_dump_memory = False  # set by signal 1
        self.need_objects_dump = False #set by signal 2

        # And a dummy push flavor
        self.push_flavor = 0

        # Now fake initialize for our satellites
        self.brokers = {}
        self.pollers = {}
        self.reactionners = {}


    def reset(self):
        self.must_run = True
        del self.waiting_results[:]
        for o in self.checks, self.actions, self.downtimes, self.contact_downtimes, self.comments, self.broks, self.brokers:
            o.clear()



    # Load conf for future use
    # we are in_test if the data are from an arbiter object like,
    # so only for tests
    def load_conf(self, conf, in_test=False):
        self.program_start = int(time.time())
        self.conf = conf
        self.hostgroups = conf.hostgroups
        self.hostgroups.create_reversed_list()
        self.services = conf.services
        # We need reversed list for search in the retention
        # file read
        self.services.create_reversed_list()
        self.services.optimize_service_search(conf.hosts)
        self.hosts = conf.hosts
        self.hosts.create_reversed_list()

        self.notificationways = conf.notificationways
        self.checkmodulations = conf.checkmodulations
        self.macromodulations = conf.macromodulations
        self.contacts = conf.contacts
        self.contacts.create_reversed_list()
        self.contactgroups = conf.contactgroups
        self.contactgroups.create_reversed_list()
        self.servicegroups = conf.servicegroups
        self.servicegroups.create_reversed_list()
        self.timeperiods = conf.timeperiods
        self.timeperiods.create_reversed_list()
        self.commands = conf.commands
        self.commands.create_reversed_list()
        self.triggers = conf.triggers
        self.triggers.create_reversed_list()
        self.triggers.compile()
        self.triggers.load_objects(self)


        if not in_test:
            # Commands in the host/services/contacts are not real one
            # we must relink them
            t0 = time.time()
            self.conf.late_linkify()
            logger.debug("Late command relink in %d" % (time.time() - t0))

        # self.status_file = StatusFile(self)        # External status file
        self.instance_id = conf.instance_id  # From Arbiter. Use for
                                            # Broker to differentiate
                                            # schedulers
        # Tag our hosts with our instance_id
        for h in self.hosts:
            h.instance_id = conf.instance_id
        for s in self.services:
            s.instance_id = conf.instance_id
        # self for instance_name
        self.instance_name = conf.instance_name
        # and push flavor
        self.push_flavor = conf.push_flavor

        # Now we can update our 'ticks' for special calls
        # like the retention one, etc
        self.update_recurrent_works_tick('update_retention_file', self.conf.retention_update_interval * 60)
        self.update_recurrent_works_tick('clean_queues', self.conf.cleaning_queues_interval)


    # Update the 'tick' for a function call in our
    # recurrent work
    def update_recurrent_works_tick(self, f_name, new_tick):
        for i in self.recurrent_works:
            (name, f, old_tick) = self.recurrent_works[i]
            if name == f_name:
                logger.debug("Changing the tick to %d for the function %s" % (new_tick, name))
                self.recurrent_works[i] = (name, f, new_tick)


    # Load the pollers from our app master
    def load_satellites(self, pollers, reactionners):
        self.pollers = pollers
        self.reactionners = reactionners


    # Oh... Arbiter want us to die... To launch a new Scheduler
    # "Mais qu'a-t-il de plus que je n'ais pas?"
    # "But.. On which point it is better than me?"
    def die(self):
        self.must_run = False


    def dump_objects(self):
        d = tempfile.gettempdir()
        p = os.path.join(d, 'scheduler-obj-dump-%d' % time.time())
        logger.info('Opening the DUMP FILE %s' % (p))
        try:
            f = open(p, 'w')
            f.write('Scheduler DUMP at %d\n' % time.time())
            for c in self.checks.values():
                s = 'CHECK: %s:%s:%s:%s:%s:%s\n' % (c.id, c.status, c.t_to_go, c.poller_tag, c.command, c.worker)
                f.write(s)
            for a in self.actions.values():
                s = '%s: %s:%s:%s:%s:%s:%s\n' % (a.__class__.my_type.upper(), a.id, a.status, a.t_to_go, a.reactionner_tag, a.command, a.worker)
                f.write(s)
            for b in self.broks.values():
                s = 'BROK: %s:%s\n' % (b.id, b.type)
                f.write(s)
            f.close()
        except Exception, exp:
            logger.error("Error in writing the dump file %s : %s" % (p, str(exp)))


    # Load the external command
    def load_external_command(self, e):
        self.external_command = e


    # We've got activity in the fifo, we get and run commands
    def run_external_commands(self, cmds):
        for command in cmds:
            self.run_external_command(command)


    def run_external_command(self, command):
        logger.debug("scheduler resolves command '%s'" % command)
        ext_cmd = ExternalCommand(command)
        self.external_command.resolve_command(ext_cmd)


    # Add_Brok is a bit more complex than the others, because
    # on starting, the broks are put in a global queue : self.broks
    # then when the first broker connect, it will generate initial_broks
    # in it's own queue (so bname != None).
    # and when in "normal" run, we just need to put the brok to all queues
    def add_Brok(self, brok, bname=None):
        # For brok, we TAG brok with our instance_id
        brok.instance_id = self.instance_id
        # Maybe it's just for one broker
        if bname:
            broks = self.brokers[bname]['broks']
            broks[brok.id] = brok
        else:
            # If there are known brokers, give it to them
            if len(self.brokers) > 0:
                # Or maybe it's for all
                for bname in self.brokers:
                    broks = self.brokers[bname]['broks']
                    broks[brok.id] = brok
            else: # no brokers? maybe at startup for logs
                # we will put in global queue, that the first broker
                # connexion will get all
                self.broks[brok.id] = brok


    def add_Notification(self, notif):
        self.actions[notif.id] = notif
        # A notification ask for a brok
        if notif.contact is not None:
            b = notif.get_initial_status_brok()
            self.add(b)


    def add_Check(self, c):
        self.checks[c.id] = c
        # A new check means the host/service changes its next_check
        # need to be refreshed
        b = c.ref.get_next_schedule_brok()
        self.add(b)


    def add_EventHandler(self, action):
        # print "Add an event Handler", elt.id
        self.actions[action.id] = action


    def add_Downtime(self, dt):
        self.downtimes[dt.id] = dt
        if dt.extra_comment:
            self.add_Comment(dt.extra_comment)


    def add_ContactDowntime(self, contact_dt):
        self.contact_downtimes[contact_dt.id] = contact_dt


    def add_Comment(self, comment):
        self.comments[comment.id] = comment
        b = comment.ref.get_update_status_brok()
        self.add(b)


    # Ok one of our modules send us a command? just run it!
    def add_ExternalCommand(self, ext_cmd):
        self.external_command.resolve_command(ext_cmd)


    # Schedulers have some queues. We can simplify call by adding
    # elements into the proper queue just by looking at their type
    # Brok -> self.broks
    # Check -> self.checks
    # Notification -> self.actions
    # Downtime -> self.downtimes
    # ContactDowntime -> self.contact_downtimes
    def add(self, elt):
        f = self.__add_actions.get(elt.__class__, None)
        if f:
            #print("found action for %s: %s" % (elt.__class__.__name__, f.__name__))
            f(self, elt)

    __add_actions = {
        Check:              add_Check,
        Brok:               add_Brok,
        Notification:       add_Notification,
        EventHandler:       add_EventHandler,
        Downtime:           add_Downtime,
        ContactDowntime:    add_ContactDowntime,
        Comment:            add_Comment,
        ExternalCommand:    add_ExternalCommand,
    }

    # We call the function of modules that got the
    # hook function
    # TODO: find a way to merge this and the version in daemon.py
    def hook_point(self, hook_name):
        for inst in self.sched_daemon.modules_manager.instances:
            full_hook_name = 'hook_' + hook_name
            logger.debug("hook_point: %s: %s %s" % (inst.get_name(), str(hasattr(inst, full_hook_name)), hook_name))

            if hasattr(inst, full_hook_name):
                f = getattr(inst, full_hook_name)
                try:
                    f(self)
                except Exception, exp:
                    logger.error("The instance %s raise an exception %s. I disable it and set it to restart it later" % (inst.get_name(), str(exp)))
                    output = cStringIO.StringIO()
                    traceback.print_exc(file=output)
                    logger.error("Exception trace follows: %s" % (output.getvalue()))
                    output.close()
                    self.sched_daemon.modules_manager.set_to_restart(inst)

    # Ours queues may explode if no one ask us for elements
    # It's very dangerous: you can crash your server... and it's a bad thing :)
    # So we 'just' keep last elements: 5 of max is a good overhead
    def clean_queues(self):
        # if we set the interval at 0, we bail out
        if self.conf.cleaning_queues_interval == 0:
            return

        max_checks = 5 * (len(self.hosts) + len(self.services))
        max_broks = 5 * (len(self.hosts) + len(self.services))
        max_actions = 5 * len(self.contacts) * (len(self.hosts) + len(self.services))

        # For checks, it's not very simple:
        # For checks, they may be referred to their host/service
        # We do not just del them in the check list, but also in their service/host
        # We want id of lower than max_id - 2*max_checks
        if len(self.checks) > max_checks:
            id_max = self.checks.keys()[-1]  # The max id is the last id
                                            #: max is SO slow!
            to_del_checks = [c for c in self.checks.values() if c.id < id_max - max_checks]
            nb_checks_drops = len(to_del_checks)
            if nb_checks_drops > 0:
                logger.info("I have to del some checks (%d)..., sorry" % nb_checks_drops)
            for c in to_del_checks:
                i = c.id
                elt = c.ref
                # First remove the link in host/service
                elt.remove_in_progress_check(c)
                # Then in dependent checks (I depend on, or check
                # depend on me)
                for dependent_checks in c.depend_on_me:
                    dependent_checks.depend_on.remove(c.id)
                for c_temp in c.depend_on:
                    c_temp.depen_on_me.remove(c)
                del self.checks[i]  # Final Bye bye ...
        else:
            nb_checks_drops = 0

        # For broks and actions, it's more simple
        # or brosk, manage global but also all brokers queue
        b_lists = [self.broks]
        for (bname, e) in self.brokers.iteritems():
            b_lists.append(e['broks'])
        for broks in b_lists:
            if len(broks) > max_broks:
                id_max = broks.keys()[-1]
                id_to_del_broks = [i for i in broks if i < id_max - max_broks]
                nb_broks_drops = len(id_to_del_broks)
                for i in id_to_del_broks:
                    del broks[i]
            else:
                nb_broks_drops = 0

        if len(self.actions) > max_actions:
            id_max = self.actions.keys()[-1]
            id_to_del_actions = [i for i in self.actions if i < id_max - max_actions]
            nb_actions_drops = len(id_to_del_actions)
            for i in id_to_del_actions:
                # Remember to delete reference of notification in service/host
                a = self.actions[i]
                if a.is_a == 'notification':
                    a.ref.remove_in_progress_notification(a)
                del self.actions[i]
        else:
            nb_actions_drops = 0

        if nb_checks_drops != 0 or nb_broks_drops != 0 or nb_actions_drops != 0:
            logger.warning("We drop %d checks, %d broks and %d actions" % (nb_checks_drops, nb_broks_drops, nb_actions_drops))

    # For tunning purpose we use caches but we do not want them to explode
    # So we clean them
    def clean_caches(self):
        for tp in self.timeperiods:
            tp.clean_cache()

    # Ask item (host or service) an update_status
    # and add it to our broks queue
    def get_and_register_status_brok(self, item):
        b = item.get_update_status_brok()
        self.add(b)

    # Ask item (host or service) a check_result_brok
    # and add it to our broks queue
    def get_and_register_check_result_brok(self, item):
        b = item.get_check_result_brok()
        self.add(b)

    # We do not want this downtime id
    def del_downtime(self, dt_id):
        if dt_id in self.downtimes:
            self.downtimes[dt_id].ref.del_downtime(dt_id)
            del self.downtimes[dt_id]

    # We do not want this downtime id
    def del_contact_downtime(self, dt_id):
        if dt_id in self.contact_downtimes:
            self.contact_downtimes[dt_id].ref.del_downtime(dt_id)
            del self.contact_downtimes[dt_id]

    # We do not want this comment id
    def del_comment(self, c_id):
        if c_id in self.comments:
            self.comments[c_id].ref.del_comment(c_id)
            del self.comments[c_id]

    # We are looking for outdated acks, and if so, remove them
    def check_for_expire_acknowledge(self):
        for t in [self.hosts, self.services]:
            for i in t:
                i.check_for_expire_acknowledge()

    # We update all business_impact to look at new modulation
    # start for impacts, and so update broks status and
    # problems value too
    def update_business_values(self):
        for t in [self.hosts, self.services]:
            # We first update impacts and classic elements
            for i in [i for i in t if not i.is_problem]:
                was = i.business_impact
                i.update_business_impact_value()
                new = i.business_impact
                # Ok, the business_impact change, we can update the broks
                if new != was:
                    #print "The elements", i.get_name(), "change it's business_impact value"
                    self.get_and_register_status_brok(i)

        # When all impacts and classic elements are updated,
        # we can update problems (their value depend on impacts, so
        # they must be done after)
        for t in [self.hosts, self.services]:
            # We first update impacts and classic elements
            for i in [i for i in t if i.is_problem]:
                was = i.business_impact
                i.update_business_impact_value()
                new = i.business_impact
                # Maybe one of the impacts change it's business_impact to a high value
                # and so ask for the problem to raise too
                if new != was:
                    #print "The elements", i.get_name(), "change it's business_impact value from", was, "to", new
                    self.get_and_register_status_brok(i)


    # Each second we search for master notification that are scatterisable and we do the job
    # we take the sons and we put them into our actions queue
    def scatter_master_notifications(self):
            now = time.time()
            for a in self.actions.values():
                # We only want notifications
                if a.is_a != 'notification':
                    continue
                if a.status == 'scheduled' and a.is_launchable(now):
                    if not a.contact:
                        # This is a "master" notification created by create_notifications.
                        # It wont sent itself because it has no contact.
                        # We use it to create "child" notifications (for the contacts and
                        # notification_commands) which are executed in the reactionner.
                        item = a.ref
                        childnotifications = []
                        if not item.notification_is_blocked_by_item(a.type, now):
                            # If it is possible to send notifications of this type at the current time, then create
                            # a single notification for each contact of this item.
                            childnotifications = item.scatter_notification(a)
                            for c in childnotifications:
                                c.status = 'scheduled'
                                self.add(c)  # this will send a brok

                        # If we have notification_interval then schedule the next notification (problems only)
                        if a.type == 'PROBLEM':
                            # Update the ref notif number after raise the one of the notification
                            if len(childnotifications) != 0:
                                # notif_nb of the master notification was already current_notification_number+1.
                                # If notifications were sent, then host/service-counter will also be incremented
                                item.current_notification_number = a.notif_nb

                            if item.notification_interval != 0 and a.t_to_go is not None:
                                # We must continue to send notifications.
                                # Just leave it in the actions list and set it to "scheduled" and it will be found again later
                                # Ask the service/host to compute the next notif time. It can be just
                                # a.t_to_go + item.notification_interval * item.__class__.interval_length
                                # or maybe before because we have an escalation that need to raise up before
                                a.t_to_go = item.get_next_notification_time(a)

                                a.notif_nb = item.current_notification_number + 1
                                a.status = 'scheduled'
                            else:
                                # Wipe out this master notification. One problem notification is enough.
                                item.remove_in_progress_notification(a)
                                self.actions[a.id].status = 'zombie'

                        else:
                            # Wipe out this master notification. We don't repeat recover/downtime/flap/etc...
                            item.remove_in_progress_notification(a)
                            self.actions[a.id].status = 'zombie'


    # Called by poller to get checks
    # Can get checks and actions (notifications and co)
    def get_to_run_checks(self, do_checks=False, do_actions=False,
                          poller_tags=['None'], reactionner_tags=['None'], \
                              worker_name='none', module_types=['fork']
                          ):
        res = []
        now = time.time()

        # If poller want to do checks
        if do_checks:
            for c in self.checks.values():
                #  If the command is untagged, and the poller too, or if both are tagged
                #  with same name, go for it
                # if do_check, call for poller, and so poller_tags by default is ['None']
                # by default poller_tag is 'None' and poller_tags is ['None']
                # and same for module_type, the default is the 'fork' type
                if c.poller_tag in poller_tags and c.module_type in module_types:
                    # must be ok to launch, and not an internal one (business rules based)
                    if c.status == 'scheduled' and c.is_launchable(now) and not c.internal:
                        c.status = 'inpoller'
                        c.worker = worker_name
                        # We do not send c, because it is a link (c.ref) to
                        # host/service and poller do not need it. It only
                        # need a shell with id, command and defaults
                        # parameters. It's the goal of copy_shell
                        res.append(c.copy_shell())

        # If reactionner want to notify too
        if do_actions:
            for a in self.actions.values():
                is_master = (a.is_a == 'notification' and not a.contact)

                if not is_master:
                    # if do_action, call the reactionner, and so reactionner_tags by default is ['None']
                    # by default reactionner_tag is 'None' and reactionner_tags is ['None'] too
                    # So if not the good one, loop for next :)
                    if not a.reactionner_tag in reactionner_tags:
                        continue

                    # same for module_type
                    if not a.module_type in module_types:
                        continue

                # And now look for can launch or not :)
                if a.status == 'scheduled' and a.is_launchable(now):
                    a.status = 'inpoller'
                    a.worker = worker_name
                    if not is_master:
                        # This is for child notifications and eventhandlers
                        new_a = a.copy_shell()
                        res.append(new_a)
        return res
    
    
    # Called by poller and reactionner to send result
    def put_results(self, c):
        if c.is_a == 'notification':
            # We will only see childnotifications here
            try:
                timeout = False
                if c.status == 'timeout':
                    # Unfortunately the remove_in_progress_notification
                    # sets the status to zombie, so we need to save it here.
                    timeout = True
                    execution_time = c.execution_time

                # Add protection for strange charset
                if isinstance(c.output, str):
                    c.output = c.output.decode('utf8', 'ignore')

                self.actions[c.id].get_return_from(c)
                item = self.actions[c.id].ref
                item.remove_in_progress_notification(c)
                self.actions[c.id].status = 'zombie'
                item.last_notification = c.check_time

                # And we ask the item to update it's state
                self.get_and_register_status_brok(item)

                # If we' ve got a problem with the notification, raise a Warning log
                if timeout:
                    logger.warning("Contact %s %s notification command '%s ' timed out after %d seconds" %
                                   (self.actions[c.id].contact.contact_name,
                                    self.actions[c.id].ref.__class__.my_type,
                                    self.actions[c.id].command,
                                    int(execution_time)))
                elif c.exit_status != 0:
                    logger.warning("The notification command '%s' raised an error (exit code=%d): '%s'" % (c.command, c.exit_status, c.output))

            except KeyError, exp:  # bad number for notif, not that bad
                logger.warning('put_results:: get unknown notification : %s ' % str(exp))

            except AttributeError, exp:  # bad object, drop it
                logger.warning('put_results:: get bad notification : %s ' % str(exp))



        elif c.is_a == 'check':
            try:
                if c.status == 'timeout':
                    c.output = "(%s Check Timed Out)" % self.checks[c.id].ref.__class__.my_type.capitalize()
                    c.long_output = c.output
                    c.exit_status = self.conf.timeout_exit_status
                self.checks[c.id].get_return_from(c)
                self.checks[c.id].status = 'waitconsume'
            except KeyError, exp:
                pass


        elif c.is_a == 'eventhandler':
            # It just die
            try:
                if c.status == 'timeout':
                    logger.warning("%s event handler command '%s ' timed out after %d seconds" %
                                   (self.actions[c.id].ref.__class__.my_type.capitalize(),
                                    self.actions[c.id].command,
                                    int(c.execution_time)))
                self.actions[c.id].status = 'zombie'
            # Maybe we got a return of a old even handler, so we can forget it
            except KeyError, exp:
                logger.warning('put_results:: get unknown event handler : %s ' % str(exp))
                pass
        else:
            logger.error("The received result type in unknown! %s" % str(c.is_a))

    # Get the good tabs for links regarding to the kind. If unknown, return None
    def get_links_from_type(self, type):
        t = {'poller': self.pollers, 'reactionner': self.reactionners}
        if type in t:
            return t[type]
        return None

    # Check if we do not connect to often to this
    def is_connection_try_too_close(self, elt):
        now = time.time()
        last_connection = elt['last_connection']
        if now - last_connection < 5:
            return  True
        return False

    # initialize or re-initialize connection with a poller
    # or a reactionner
    def pynag_con_init(self, id, type='poller'):
        # Get good links tab for looping..
        links = self.get_links_from_type(type)
        if links is None:
            logger.debug("Unknown '%s' type for connection!" % type)
            return

        # We want only to initiate connections to the passive
        # pollers and reactionners
        passive = links[id]['passive']
        if not passive:
            return

        # If we try to connect too much, we slow down our tests
        if self.is_connection_try_too_close(links[id]):
            return

        # Ok, we can now update it
        links[id]['last_connection'] = time.time()

        logger.debug("Init connection with %s" % links[id]['uri'])

        uri = links[id]['uri']
        try:
            links[id]['con'] = HTTPClient(uri=uri, strong_ssl=links[id]['hard_ssl_name_check'])
            con = links[id]['con']
        except HTTPExceptions, exp:
            logger.warning("Connection problem to the %s %s: %s" % (type, links[id]['name'], str(exp)))
            links[id]['con'] = None
            return

        try:
            # initial ping must be quick
            con.get('ping')
        except HTTPExceptions, exp:
            logger.warning("Connection problem to the %s %s: %s" % (type, links[id]['name'], str(exp)))
            links[id]['con'] = None
            return
        except KeyError, exp:
            logger.warning("The %s '%s' is not initialized: %s" % (type, links[id]['name'], str(exp)))
            links[id]['con'] = None
            return

        logger.info("Connection OK to the %s %s" % (type, links[id]['name']))


    # We should push actions to our passives satellites
    def push_actions_to_passives_satellites(self):
        # We loop for our passive pollers or reactionners
        for p in filter(lambda p: p['passive'], self.pollers.values()):
            logger.debug("I will send actions to the poller %s" % str(p))
            con = p['con']
            poller_tags = p['poller_tags']
            if con is not None:
                # get actions
                lst = self.get_to_run_checks(True, False, poller_tags, worker_name=p['name'])
                try:
                    # initial ping must be quick
                    #pyro.set_timeout(con, 120)
                    logger.debug("Sending %s actions" % len(lst))
                    #con.push_actions(lst, self.instance_id)
                    con.post('push_actions', {'actions':lst, 'sched_id':self.instance_id})
                    self.nb_checks_send += len(lst)
                except HTTPExceptions, exp:
                    logger.warning("Connection problem to the %s %s: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                except KeyError, exp:
                    logger.warning("The %s '%s' is not initialized: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                # we come back to normal timeout
                #pyro.set_timeout(con, 5)
            else:  # no connection? try to reconnect
                self.pynag_con_init(p['instance_id'], type='poller')

        # TODO:factorize
        # We loop for our passive reactionners
        for p in filter(lambda p: p['passive'], self.reactionners.values()):
            logger.debug("I will send actions to the reactionner %s" % str(p))
            con = p['con']
            reactionner_tags = p['reactionner_tags']
            if con is not None:
            # get actions
                lst = self.get_to_run_checks(False, True, reactionner_tags=reactionner_tags, worker_name=p['name'])
                try:
                    # initial ping must be quick
                    #pyro.set_timeout(con, 120)
                    logger.debug("Sending %d actions" % len(lst))
                    #con.push_actions(lst, self.instance_id)
                    con.post('push_actions', {'actions':lst, 'sched_id':self.instance_id})
                    self.nb_checks_send += len(lst)
                except HTTPExceptions, exp:
                    logger.warning("Connection problem to the %s %s: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                except KeyError, exp:
                    logger.warning("The %s '%s' is not initialized: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                # we come back to normal timeout
                #pyro.set_timeout(con, 5)
            else:  # no connection? try to reconnect
                self.pynag_con_init(p['instance_id'], type='reactionner')


    # We should get returns from satellites
    def get_actions_from_passives_satellites(self):
        # We loop for our passive pollers
        for p in filter(lambda p: p['passive'], self.pollers.values()):
            logger.debug("I will get actions from the poller %s" % str(p))
            con = p['con']
            poller_tags = p['poller_tags']
            if con is not None:
                try:
                    # initial ping must be quick
                    #pyro.set_timeout(con, 120)
                    #results = con.get_returns(self.instance_id)
                    # Before ask a call that can be long, do a simple ping to be sure it is alive
                    con.get('ping')
                    results = con.get('get_returns', {'sched_id':self.instance_id}, wait='long')
                    results = cPickle.loads(str(results))
                    nb_received = len(results)
                    self.nb_check_received += nb_received
                    logger.debug("Received %d passive results" % nb_received)
                    for result in results:
                        result.set_type_passive()
                    self.waiting_results.extend(results)
                except HTTPExceptions, exp:
                    logger.warning("Connection problem to the %s %s: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                except KeyError, exp:
                    logger.warning("The %s '%s' is not initialized: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                # we come back to normal timeout
                #pyro.set_timeout(con, 5)
            else:  # no connection, try reinit
                self.pynag_con_init(p['instance_id'], type='poller')

        # We loop for our passive reactionners
        for p in filter(lambda p: p['passive'], self.reactionners.values()):
            logger.debug("I will get actions from the reactionner %s" % str(p))
            con = p['con']
            reactionner_tags = p['reactionner_tags']
            if con is not None:
                try:
                    # initial ping must be quick
                    #pyro.set_timeout(con, 120)
                    #results = con.get_returns(self.instance_id)
                    # Before ask a call that can be long, do a simple ping to be sure it is alive
                    con.get('ping')
                    results = con.get('get_returns', {'sched_id':self.instance_id}, wait='long')
                    results = cPickle.loads(str(results))
                    nb_received = len(results)
                    self.nb_check_received += nb_received
                    logger.debug("Received %d passive results" % nb_received)
                    for result in results:
                        result.set_type_passive()
                    self.waiting_results.extend(results)
                except HTTPExceptions, exp:
                    logger.warning("Connection problem to the %s %s: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                except KeyError, exp:
                    logger.warning("The %s '%s' is not initialized: %s" % (type, p['name'], str(exp)))
                    p['con'] = None
                    return
                # we come back to normal timeout
                #pyro.set_timeout(con, 5)
            else:  # no connection, try reinit
                self.pynag_con_init(p['instance_id'], type='reactionner')


    # Some checks are purely internal, like business based one
    # simply ask their ref to manage it when it's ok to run
    def manage_internal_checks(self):
        now = time.time()
        for c in self.checks.values():
            # must be ok to launch, and not an internal one (business rules based)
            if c.internal and c.status == 'scheduled' and c.is_launchable(now):
                c.ref.manage_internal_check(self.hosts, self.services, c)
                # it manage it, now just ask to consume it
                # like for all checks
                c.status = 'waitconsume'

    # Call by brokers to have broks
    # We give them, and clean them!
    def get_broks(self, bname):
        # If we are here, we are sure the broker entry exists
        res = self.brokers[bname]['broks']
        # They are gone, we keep none!
        self.brokers[bname]['broks'] = {}

        # Also put in the result the possible first log broks if so
        res.update(self.broks)
        # and clean the global broks too now
        self.broks.clear()

        return res


    # An element can have its topology changed by an external command
    # if so a brok will be generated with this flag. No need to reset all of
    # them.
    def reset_topology_change_flag(self):
        for i in self.hosts:
            i.topology_change = False
        for i in  self.services:
            i.topology_change = False

    # Update the retention file and give all te data in
    # a dict so the read function can pickup what it wants
    # For now compression is not used, but it can be added easily
    # just uncomment :)
    def update_retention_file(self, forced=False):
        # If we set the update to 0, we do not want of this
        # if we do not forced (like at stopping)
        if self.conf.retention_update_interval == 0 and not forced:
            return

        self.hook_point('save_retention')

    # Load the retention file and get status from it. It does not get all checks in progress
    # for the moment, just the status and the notifications.
    def retention_load(self):
        self.hook_point('load_retention')

    # Helper function for module, will give the host and service
    # data
    def get_retention_data(self):
        # We create an all_data dict with list of useful retention data dicts
        # of our hosts and services
        all_data = {'hosts': {}, 'services': {}}
        for h in self.hosts:
            d = {}
            running_properties = h.__class__.running_properties
            for prop, entry in running_properties.items():
                if entry.retention:
                    v = getattr(h, prop)
                    # Maybe we should "prepare" the data before saving it
                    # like get only names instead of the whole objects
                    f = entry.retention_preparation
                    if f:
                        v = f(h, v)
                    d[prop] = v
            # and some properties are also like this, like
            # active checks enabled or not
            properties = h.__class__.properties
            for prop, entry in properties.items():
                if entry.retention:
                    v = getattr(h, prop)
                    # Maybe we should "prepare" the data before saving it
                    # like get only names instead of the whole objects
                    f = entry.retention_preparation
                    if f:
                        v = f(h, v)
                    d[prop] = v
            all_data['hosts'][h.host_name] = d

        # Same for services
        for s in self.services:
            d = {}
            running_properties = s.__class__.running_properties
            for prop, entry in running_properties.items():
                if entry.retention:
                    v = getattr(s, prop)
                    # Maybe we should "prepare" the data before saving it
                    # like get only names instead of the whole objects
                    f = entry.retention_preparation
                    if f:
                        v = f(s, v)
                    d[prop] = v
            # Same for properties, like active checks enabled or not
            properties = s.__class__.properties
            for prop, entry in properties.items():
                if entry.retention:
                    v = getattr(s, prop)
                    # Maybe we should "prepare" the data before saving it
                    # like get only names instead of the whole objects
                    f = entry.retention_preparation
                    if f:
                        v = f(s, v)
                    d[prop] = v
            all_data['services'][(s.host.host_name, s.service_description)] = d
        return all_data

    # Get back our broks from a retention module :)
    def restore_retention_data(self, data):
        # Now load interesting properties in hosts/services
        # Tagging retention=False prop that not be directly load
        # Items will be with theirs status, but not in checking, so
        # a new check will be launched like with a normal beginning (random distributed
        # scheduling)

        ret_hosts = data['hosts']
        for ret_h_name in ret_hosts:
            # We take the dict of our value to load
            d = data['hosts'][ret_h_name]
            h = self.hosts.find_by_name(ret_h_name)
            if h is not None:
                # First manage all running properties
                running_properties = h.__class__.running_properties
                for prop, entry in running_properties.items():
                    if entry.retention:
                        # Maybe the saved one was not with this value, so
                        # we just bypass this
                        if prop in d:
                            setattr(h, prop, d[prop])
                # Ok, some are in properties too (like active check enabled
                # or not. Will OVERRIDE THE CONFIGURATION VALUE!
                properties = h.__class__.properties
                for prop, entry in properties.items():
                    if entry.retention:
                        # Maybe the saved one was not with this value, so
                        # we just bypass this
                        if prop in d:
                            setattr(h, prop, d[prop])
                # Now manage all linked objects load from previous run
                for a in h.notifications_in_progress.values():
                    a.ref = h
                    self.add(a)
                    # Also raises the action id, so do not overlap ids
                    a.assume_at_least_id(a.id)
                h.update_in_checking()
                # And also add downtimes and comments
                for dt in h.downtimes:
                    dt.ref = h
                    if hasattr(dt, 'extra_comment'):
                        dt.extra_comment.ref = h
                    else:
                        dt.extra_comment = None
                    # raises the downtime id to do not overlap
                    Downtime.id = max(Downtime.id, dt.id + 1)
                    self.add(dt)
                for c in h.comments:
                    c.ref = h
                    self.add(c)
                    # raises comment id to do not overlap ids
                    Comment.id = max(Comment.id, c.id + 1)
                if h.acknowledgement is not None:
                    h.acknowledgement.ref = h
                    # Raises the id of future ack so we don't overwrite
                    # these one
                    Acknowledge.id = max(Acknowledge.id, h.acknowledgement.id + 1)
                # Relink the notified_contacts as a set() of true contacts objects
                # it it was load from the retention, it's now a list of contacts
                # names
                if 'notified_contacts' in d:
                    new_notified_contacts = set()
                    for cname in h.notified_contacts:
                        c = self.contacts.find_by_name(cname)
                        # Maybe the contact is gone. Skip it
                        if c:
                            new_notified_contacts.add(c)
                    h.notified_contacts = new_notified_contacts

        # SAme for services
        ret_services = data['services']
        for (ret_s_h_name, ret_s_desc) in ret_services:
            # We take our dict to load
            d = data['services'][(ret_s_h_name, ret_s_desc)]
            s = self.services.find_srv_by_name_and_hostname(ret_s_h_name, ret_s_desc)

            if s is not None:
                # Load the major values from running properties
                running_properties = s.__class__.running_properties
                for prop, entry in running_properties.items():
                    if entry.retention:
                        # Maybe the saved one was not with this value, so
                        # we just bypass this
                        if prop in d:
                            setattr(s, prop, d[prop])
                # And some others from properties dict too
                properties = s.__class__.properties
                for prop, entry in properties.items():
                    if entry.retention:
                        # Maybe the saved one was not with this value, so
                        # we just bypass this
                        if prop in d:
                            setattr(s, prop, d[prop])
                # Ok now manage all linked objects
                for a in s.notifications_in_progress.values():
                    a.ref = s
                    self.add(a)
                    # Also raises the action id, so do not overlap id
                    a.assume_at_least_id(a.id)
                s.update_in_checking()
                # And also add downtimes and comments
                for dt in s.downtimes:
                    dt.ref = s
                    if hasattr(dt, 'extra_comment'):
                        dt.extra_comment.ref = s
                    else:
                        dt.extra_comment = None
                    # raises the downtime id to do not overlap
                    Downtime.id = max(Downtime.id, dt.id + 1)
                    self.add(dt)
                for c in s.comments:
                    c.ref = s
                    self.add(c)
                    # raises comment id to do not overlap ids
                    Comment.id = max(Comment.id, c.id + 1)
                if s.acknowledgement is not None:
                    s.acknowledgement.ref = s
                    # Raises the id of future ack so we don't overwrite
                    # these one
                    Acknowledge.id = max(Acknowledge.id, s.acknowledgement.id + 1)
                # Relink the notified_contacts as a set() of true contacts objects
                # it it was load from the retention, it's now a list of contacts
                # names
                if 'notified_contacts' in d:
                    new_notified_contacts = set()
                    for cname in s.notified_contacts:
                        c = self.contacts.find_by_name(cname)
                        # Maybe the contact is gone. Skip it
                        if c:
                            new_notified_contacts.add(c)
                    s.notified_contacts = new_notified_contacts


    # Fill the self.broks with broks of self (process id, and co)
    # broks of service and hosts (initial status)
    def fill_initial_broks(self, bname, with_logs=False):
        # First a Brok for delete all from my instance_id
        b = Brok('clean_all_my_instance_id', {'instance_id': self.instance_id})
        self.add_Brok(b, bname)

        # first the program status
        b = self.get_program_status_brok()
        self.add_Brok(b, bname)

        #  We can't call initial_status from all this types
        #  The order is important, service need host...
        initial_status_types = (self.timeperiods, self.commands,
                          self.contacts, self.contactgroups,
                          self.hosts, self.hostgroups,
                          self.services, self.servicegroups)

        self.conf.skip_initial_broks = getattr(self.conf,'skip_initial_broks', False)
        logger.debug("Skipping initial broks? %s" % str(self.conf.skip_initial_broks))
        if not self.conf.skip_initial_broks:
            for tab in initial_status_types:
                for i in tab:
                    b = i.get_initial_status_brok()
                    self.add_Brok(b, bname)

        # Only raises the all logs at the scheduler startup
        if with_logs:
            # Ask for INITIAL logs for services and hosts
            for i in self.hosts:
                i.raise_initial_state()
            for i in self.services:
                i.raise_initial_state()

        # Add a brok to say that we finished all initial_pass
        b = Brok('initial_broks_done', {'instance_id': self.instance_id})
        self.add_Brok(b, bname)

        # We now have all full broks
        self.has_full_broks = True

        logger.info("[%s] Created %d initial Broks for broker %s" % (self.instance_name, len(self.brokers[bname]['broks']), bname))


    # Crate a brok with program status info
    def get_and_register_program_status_brok(self):
        b = self.get_program_status_brok()
        self.add(b)


    # Crate a brok with program status info
    def get_and_register_update_program_status_brok(self):
        b = self.get_program_status_brok()
        b.type = 'update_program_status'
        self.add(b)


    # Get a brok with program status
    # TODO: GET REAL VALUES
    def get_program_status_brok(self):
        now = int(time.time())
        data = {"is_running": 1,
                "instance_id": self.instance_id,
                "instance_name": self.instance_name,
                "last_alive": now,
                "interval_length": self.conf.interval_length,
                "program_start": self.program_start,
                "pid": os.getpid(),
                "daemon_mode": 1,
                "last_command_check": now,
                "last_log_rotation": now,
                "notifications_enabled": self.conf.enable_notifications,
                "active_service_checks_enabled": self.conf.execute_service_checks,
                "passive_service_checks_enabled": self.conf.accept_passive_service_checks,
                "active_host_checks_enabled": self.conf.execute_host_checks,
                "passive_host_checks_enabled": self.conf.accept_passive_host_checks,
                "event_handlers_enabled": self.conf.enable_event_handlers,
                "flap_detection_enabled": self.conf.enable_flap_detection,
                "failure_prediction_enabled": 0,
                "process_performance_data": self.conf.process_performance_data,
                "obsess_over_hosts": self.conf.obsess_over_hosts,
                "obsess_over_services": self.conf.obsess_over_services,
                "modified_host_attributes": 0,
                "modified_service_attributes": 0,
                "global_host_event_handler": self.conf.global_host_event_handler,
                'global_service_event_handler': self.conf.global_service_event_handler,
                'check_external_commands': self.conf.check_external_commands,
                'check_service_freshness': self.conf.check_service_freshness,
                'check_host_freshness': self.conf.check_host_freshness,
                'command_file': self.conf.command_file
                }
        b = Brok('program_status', data)
        return b

    # Called every 1sec to consume every result in services or hosts
    # with these results, they are OK, CRITICAL, UP/DOWN, etc...
    def consume_results(self):
        # All results are in self.waiting_results
        # We need to get them first
        for c in self.waiting_results:
            self.put_results(c)
        self.waiting_results = []

        # Then we consume them
        #print "**********Consume*********"
        for c in self.checks.values():
            if c.status == 'waitconsume':
                item = c.ref
                item.consume_result(c)


        # All 'finished' checks (no more dep) raise checks they depends on
        for c in self.checks.values():
            if c.status == 'havetoresolvedep':
                for dependent_checks in c.depend_on_me:
                    # Ok, now dependent will no more wait c
                    dependent_checks.depend_on.remove(c.id)
                # REMOVE OLD DEP CHECK -> zombie
                c.status = 'zombie'

        # Now, reinteger dep checks
        for c in self.checks.values():
            if c.status == 'waitdep' and len(c.depend_on) == 0:
                item = c.ref
                item.consume_result(c)

    # Called every 1sec to delete all checks in a zombie state
    # zombie = not useful anymore
    def delete_zombie_checks(self):
        #print "**********Delete zombies checks****"
        id_to_del = []
        for c in self.checks.values():
            if c.status == 'zombie':
                id_to_del.append(c.id)
        # une petite tape dans le dos et tu t'en vas, merci...
        # *pat pat* GFTO, thks :)
        for id in id_to_del:
            del self.checks[id]  # ZANKUSEN!

    # Called every 1sec to delete all actions in a zombie state
    # zombie = not useful anymore
    def delete_zombie_actions(self):
        #print "**********Delete zombies actions****"
        id_to_del = []
        for a in self.actions.values():
            if a.status == 'zombie':
                id_to_del.append(a.id)
        # une petite tape dans le dos et tu t'en vas, merci...
        # *pat pat* GFTO, thks :)
        for id in id_to_del:
            del self.actions[id]  # ZANKUSEN!

    # Check for downtimes start and stop, and register
    # them if needed
    def update_downtimes_and_comments(self):
        broks = []
        now = time.time()

        # Look for in objects comments, and look if we already got them
        for elt in [y for y in [x for x in self.hosts] + [x for x in self.services]]:
            for c in elt.comments:
                if not c.id in self.comments:
                    self.comments[c.id] = c

        # Check maintenance periods
        for elt in [y for y in [x for x in self.hosts] + [x for x in self.services] if y.maintenance_period is not None]:

            if elt.in_maintenance is None:
                if elt.maintenance_period.is_time_valid(now):
                    start_dt = elt.maintenance_period.get_next_valid_time_from_t(now)
                    end_dt = elt.maintenance_period.get_next_invalid_time_from_t(start_dt + 1) - 1
                    dt = Downtime(elt, start_dt, end_dt, 1, 0, 0, "system", "this downtime was automatically scheduled through a maintenance_period")
                    elt.add_downtime(dt)
                    self.add(dt)
                    self.get_and_register_status_brok(elt)
                    elt.in_maintenance = dt.id
            else:
                if not elt.in_maintenance in self.downtimes:
                    # the main downtimes has expired or was manually deleted
                    elt.in_maintenance = None

        #  Check the validity of contact downtimes
        for elt in self.contacts:
            for dt in elt.downtimes:
                dt.check_activation()

        # A loop where those downtimes are removed
        # which were marked for deletion (mostly by dt.exit())
        for dt in self.downtimes.values():
            if dt.can_be_deleted == True:
                ref = dt.ref
                self.del_downtime(dt.id)
                broks.append(ref.get_update_status_brok())

        # Same for contact downtimes:
        for dt in self.contact_downtimes.values():
            if dt.can_be_deleted == True:
                ref = dt.ref
                self.del_contact_downtime(dt.id)
                broks.append(ref.get_update_status_brok())

        # Downtimes are usually accompanied by a comment.
        # An exiting downtime also invalidates it's comment.
        for c in self.comments.values():
            if c.can_be_deleted == True:
                ref = c.ref
                self.del_comment(c.id)
                broks.append(ref.get_update_status_brok())

        # Check start and stop times
        for dt in self.downtimes.values():
            if dt.real_end_time < now:
                # this one has expired
                broks.extend(dt.exit())  # returns downtimestop notifications
            elif now >= dt.start_time and dt.fixed and not dt.is_in_effect:
                # this one has to start now
                broks.extend(dt.enter())  # returns downtimestart notifications
                broks.append(dt.ref.get_update_status_brok())

        for b in broks:
            self.add(b)

    # Main schedule function to make the regular scheduling
    def schedule(self):
        # ask for service and hosts their next check
        for type_tab in [self.services, self.hosts]:
            for i in type_tab:
                i.schedule()

    # Main actions reaper function: it get all new checks,
    # notification and event handler from hosts and services
    def get_new_actions(self):
        self.hook_point('get_new_actions')
        # ask for service and hosts their next check
        for type_tab in [self.services, self.hosts]:
            for i in type_tab:
                for a in i.actions:
                    self.add(a)
                # We take all, we can clear it
                i.actions = []

    # Similar as above, but for broks
    def get_new_broks(self):
        # ask for service and hosts their broks waiting
        # be eaten
        for type_tab in [self.services, self.hosts]:
            for i in type_tab:
                for b in i.broks:
                    self.add(b)
                # We take all, we can clear it
                i.broks = []

    # Raises checks for no fresh states for services and hosts
    def check_freshness(self):
        #print "********** Check freshness******"
        for type_tab in [self.services, self.hosts]:
            for i in type_tab:
                c = i.do_check_freshness()
                if c is not None:
                    self.add(c)

    # Check for orphaned checks: checks that never returns back
    # so if inpoller and t_to_go < now - 300s: pb!
    # Warn only one time for each "worker"
    # XXX I think we should make "time_to_orphanage" configurable
    #     each action type, each for notification, event_handler & check
    #     I think it will be a little more useful that way, not sure tho
    def check_orphaned(self):
        worker_names = {}
        now = int(time.time())
        for c in self.checks.values():
            time_to_orphanage = c.ref.get_time_to_orphanage()
            if time_to_orphanage:
                if c.status == 'inpoller' and c.t_to_go < now - time_to_orphanage:
                    c.status = 'scheduled'
                    if c.worker not in worker_names:
                        worker_names[c.worker] = 1
                        continue
                    worker_names[c.worker] += 1
        for a in self.actions.values():
            time_to_orphanage = a.ref.get_time_to_orphanage()
            if time_to_orphanage:
                if a.status == 'inpoller' and a.t_to_go < now - time_to_orphanage:
                    a.status = 'scheduled'
                    if a.worker not in worker_names:
                        worker_names[a.worker] = 1
                        continue
                    worker_names[a.worker] += 1

        for w in worker_names:
            logger.warning("%d actions never came back for the satellite '%s'. I reenable them for polling" % (worker_names[w], w))

    # Each loop we are going to send our broks to our modules (if need)
    def send_broks_to_modules(self):
        t0 = time.time()
        nb_sent = 0
        for mod in self.sched_daemon.modules_manager.get_external_instances():
            logger.debug("Look for sending to module %s" % mod.get_name())
            q = mod.to_q
            to_send = [b for b in self.broks.values() if not getattr(b, 'sent_to_sched_externals', False) and mod.want_brok(b)]
            q.put(to_send)
            nb_sent += len(to_send)

        # No more need to send them
        for b in self.broks.values():
            b.sent_to_sched_externals = True
        logger.debug("Time to send %s broks (after %d secs)" % (nb_sent, time.time() - t0))

    # Get 'objects' from external modules
    # right now on nobody uses 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.sched_daemon.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

    # Main function
    def run(self):
        # Then we see if we've got info in the retention file
        self.retention_load()

        # Finally start the external modules now we got our data
        self.hook_point('pre_scheduler_mod_start')
        self.sched_daemon.modules_manager.start_external_instances(late_start=True)

        # Ok, now all is initialized, we can make the initial broks
        logger.info("[%s] First scheduling launched" % self.instance_name)
        self.schedule()
        logger.info("[%s] First scheduling done" % self.instance_name)

        # Now connect to the passive satellites if needed
        for p_id in self.pollers:
            self.pynag_con_init(p_id, type='poller')

        # Ticks are for recurrent function call like consume
        # del zombies etc
        ticks = 0
        timeout = 1.0  # For the select

        gogogo = time.time()

        # We must reset it if we received a new conf from the Arbiter.
        # Otherwise, the stat check average won't be correct
        self.nb_check_received = 0

        self.load_one_min = Load(initial_value=1)
        logger.debug("First loop at %d" % time.time())
        while self.must_run:
            #print "Loop"
            # Before answer to brokers, we send our broks to modules
            # Ok, go to send our broks to our external modules
            #self.send_broks_to_modules()

            elapsed, _, _ = self.sched_daemon.handleRequests(timeout)
            if elapsed:
                timeout -= elapsed
                if timeout > 0:
                    continue

            self.load_one_min.update_load(self.sched_daemon.sleep_time)

            # load of the scheduler is the percert of time it is waiting
            l = min(100, 100.0 - self.load_one_min.get_load() * 100)
            logger.debug("Load: (sleep) %.2f (average: %.2f) -> %d%%" % (self.sched_daemon.sleep_time, self.load_one_min.get_load(), l))

            self.sched_daemon.sleep_time = 0.0

            # Timeout or time over
            timeout = 1.0
            ticks += 1

            # Do recurrent works like schedule, consume
            # delete_zombie_checks
            for i in self.recurrent_works:
                (name, f, nb_ticks) = self.recurrent_works[i]
                # A 0 in the tick will just disable it
                if nb_ticks != 0:
                    if ticks % nb_ticks == 0:
                        # print "I run function:", name
                        f()

            # DBG: push actions to passives?
            self.push_actions_to_passives_satellites()
            self.get_actions_from_passives_satellites()

            #if  ticks % 10 == 0:
            #    self.conf.quick_debug()

            # stats
            nb_scheduled = len([c for c in self.checks.values() if c.status == 'scheduled'])
            nb_inpoller = len([c for c in self.checks.values() if c.status == 'inpoller'])
            nb_zombies = len([c for c in self.checks.values() if c.status == 'zombie'])
            nb_notifications = len(self.actions)

            logger.debug("Checks: total %s, scheduled %s, inpoller %s, zombies %s, notifications %s" %\
                (len(self.checks), nb_scheduled, nb_inpoller, nb_zombies, nb_notifications))

            # Get a overview of the latencies with just
            # a 95 percentile view, but lso min/max values
            latencies = [s.latency for s in self.services]
            lat_avg, lat_min, lat_max = nighty_five_percent(latencies)
            if lat_avg is not None:
                logger.debug("Latency (avg/min/max): %.2f/%.2f/%.2f" % (lat_avg, lat_min, lat_max))

            # print "Notifications:", nb_notifications
            now = time.time()

            if self.nb_checks_send != 0:
                logger.debug("Nb checks/notifications/event send: %s" % self.nb_checks_send)
            self.nb_checks_send = 0
            if self.nb_broks_send != 0:
                logger.debug("Nb Broks send: %s" % self.nb_broks_send)
            self.nb_broks_send = 0

            time_elapsed = now - gogogo
            logger.debug("Check average = %d checks/s" % int(self.nb_check_received / time_elapsed))

            if self.need_dump_memory:
                self.sched_daemon.dump_memory()
                self.need_dump_memory = False

            if self.need_objects_dump:
                logger.debug('I need to dump my objects!')
                self.dump_objects()
                self.need_objects_dump = False




        # WE must save the retention at the quit BY OURSELF
        # because our daemon will not be able to do it for us
        self.update_retention_file(True)