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
|
// SPDX-License-Identifier: GPL-3.0-or-later
/*
* netdata systemd-journal.plugin
* Copyright (C) 2023 Netdata Inc.
* GPL v3+
*/
/*
* TODO
* _UDEV_DEVLINK is frequently set more than once per field - support multi-value faces
*
*/
#include "systemd-internals.h"
#define SYSTEMD_JOURNAL_FUNCTION_DESCRIPTION "View, search and analyze systemd journal entries."
#define SYSTEMD_JOURNAL_FUNCTION_NAME "systemd-journal"
#define SYSTEMD_JOURNAL_SAMPLING_SLOTS 1000
#define SYSTEMD_JOURNAL_SAMPLING_RECALIBRATE 10000
#ifdef HAVE_SD_JOURNAL_RESTART_FIELDS
#define LQS_DEFAULT_SLICE_MODE 1
#else
#define LQS_DEFAULT_SLICE_MODE 0
#endif
// functions needed by LQS
static SD_JOURNAL_FILE_SOURCE_TYPE get_internal_source_type(const char *value);
// structures needed by LQS
struct lqs_extension {
struct {
usec_t start_ut;
usec_t stop_ut;
usec_t first_msg_ut;
sd_id128_t first_msg_writer;
uint64_t first_msg_seqnum;
} query_file;
struct {
uint32_t enable_after_samples;
uint32_t slots;
uint32_t sampled;
uint32_t unsampled;
uint32_t estimated;
} samples;
struct {
uint32_t enable_after_samples;
uint32_t every;
uint32_t skipped;
uint32_t recalibrate;
uint32_t sampled;
uint32_t unsampled;
uint32_t estimated;
} samples_per_file;
struct {
usec_t start_ut;
usec_t end_ut;
usec_t step_ut;
uint32_t enable_after_samples;
uint32_t sampled[SYSTEMD_JOURNAL_SAMPLING_SLOTS];
uint32_t unsampled[SYSTEMD_JOURNAL_SAMPLING_SLOTS];
} samples_per_time_slot;
// per file progress info
// size_t cached_count;
// progress statistics
usec_t matches_setup_ut;
size_t rows_useful;
size_t rows_read;
size_t bytes_read;
size_t files_matched;
size_t file_working;
};
// prepare LQS
#define LQS_FUNCTION_NAME SYSTEMD_JOURNAL_FUNCTION_NAME
#define LQS_FUNCTION_DESCRIPTION SYSTEMD_JOURNAL_FUNCTION_DESCRIPTION
#define LQS_DEFAULT_ITEMS_PER_QUERY 200
#define LQS_DEFAULT_ITEMS_SAMPLING 1000000
#define LQS_SOURCE_TYPE SD_JOURNAL_FILE_SOURCE_TYPE
#define LQS_SOURCE_TYPE_ALL SDJF_ALL
#define LQS_SOURCE_TYPE_NONE SDJF_NONE
#define LQS_PARAMETER_SOURCE_NAME "Journal Sources" // this is how it is shown to users
#define LQS_FUNCTION_GET_INTERNAL_SOURCE_TYPE(value) get_internal_source_type(value)
#define LQS_FUNCTION_SOURCE_TO_JSON_ARRAY(wb) available_journal_file_sources_to_json_array(wb)
#include "libnetdata/facets/logs_query_status.h"
#include "systemd-journal-sampling.h"
#define FACET_MAX_VALUE_LENGTH 8192
#define SYSTEMD_JOURNAL_DEFAULT_TIMEOUT 60
#define SYSTEMD_JOURNAL_PROGRESS_EVERY_UT (250 * USEC_PER_MS)
#define JOURNAL_KEY_ND_JOURNAL_FILE "ND_JOURNAL_FILE"
#define JOURNAL_KEY_ND_JOURNAL_PROCESS "ND_JOURNAL_PROCESS"
#define JOURNAL_DEFAULT_DIRECTION FACETS_ANCHOR_DIRECTION_BACKWARD
#define SYSTEMD_ALWAYS_VISIBLE_KEYS NULL
#define SYSTEMD_KEYS_EXCLUDED_FROM_FACETS \
"!MESSAGE_ID" \
"|*MESSAGE*" \
"|*_RAW" \
"|*_USEC" \
"|*_NSEC" \
"|*TIMESTAMP*" \
"|*_ID" \
"|*_ID_*" \
"|__*" \
""
#define SYSTEMD_KEYS_INCLUDED_IN_FACETS \
\
/* --- USER JOURNAL FIELDS --- */ \
\
/* "|MESSAGE" */ \
"|MESSAGE_ID" \
"|PRIORITY" \
"|CODE_FILE" \
/* "|CODE_LINE" */ \
"|CODE_FUNC" \
"|ERRNO" \
/* "|INVOCATION_ID" */ \
/* "|USER_INVOCATION_ID" */ \
"|SYSLOG_FACILITY" \
"|SYSLOG_IDENTIFIER" \
/* "|SYSLOG_PID" */ \
/* "|SYSLOG_TIMESTAMP" */ \
/* "|SYSLOG_RAW" */ \
/* "!DOCUMENTATION" */ \
/* "|TID" */ \
"|UNIT" \
"|USER_UNIT" \
"|UNIT_RESULT" /* undocumented */ \
\
\
/* --- TRUSTED JOURNAL FIELDS --- */ \
\
/* "|_PID" */ \
"|_UID" \
"|_GID" \
"|_COMM" \
"|_EXE" \
/* "|_CMDLINE" */ \
"|_CAP_EFFECTIVE" \
/* "|_AUDIT_SESSION" */ \
"|_AUDIT_LOGINUID" \
"|_SYSTEMD_CGROUP" \
"|_SYSTEMD_SLICE" \
"|_SYSTEMD_UNIT" \
"|_SYSTEMD_USER_UNIT" \
"|_SYSTEMD_USER_SLICE" \
"|_SYSTEMD_SESSION" \
"|_SYSTEMD_OWNER_UID" \
"|_SELINUX_CONTEXT" \
/* "|_SOURCE_REALTIME_TIMESTAMP" */ \
"|_BOOT_ID" \
"|_MACHINE_ID" \
/* "|_SYSTEMD_INVOCATION_ID" */ \
"|_HOSTNAME" \
"|_TRANSPORT" \
"|_STREAM_ID" \
/* "|LINE_BREAK" */ \
"|_NAMESPACE" \
"|_RUNTIME_SCOPE" \
\
\
/* --- KERNEL JOURNAL FIELDS --- */ \
\
/* "|_KERNEL_DEVICE" */ \
"|_KERNEL_SUBSYSTEM" \
/* "|_UDEV_SYSNAME" */ \
"|_UDEV_DEVNODE" \
/* "|_UDEV_DEVLINK" */ \
\
\
/* --- LOGGING ON BEHALF --- */ \
\
"|OBJECT_UID" \
"|OBJECT_GID" \
"|OBJECT_COMM" \
"|OBJECT_EXE" \
/* "|OBJECT_CMDLINE" */ \
/* "|OBJECT_AUDIT_SESSION" */ \
"|OBJECT_AUDIT_LOGINUID" \
"|OBJECT_SYSTEMD_CGROUP" \
"|OBJECT_SYSTEMD_SESSION" \
"|OBJECT_SYSTEMD_OWNER_UID" \
"|OBJECT_SYSTEMD_UNIT" \
"|OBJECT_SYSTEMD_USER_UNIT" \
\
\
/* --- CORE DUMPS --- */ \
\
"|COREDUMP_COMM" \
"|COREDUMP_UNIT" \
"|COREDUMP_USER_UNIT" \
"|COREDUMP_SIGNAL_NAME" \
"|COREDUMP_CGROUP" \
\
\
/* --- DOCKER --- */ \
\
"|CONTAINER_ID" \
/* "|CONTAINER_ID_FULL" */ \
"|CONTAINER_NAME" \
"|CONTAINER_TAG" \
"|IMAGE_NAME" /* undocumented */ \
/* "|CONTAINER_PARTIAL_MESSAGE" */ \
\
\
/* --- NETDATA --- */ \
\
"|ND_NIDL_NODE" \
"|ND_NIDL_CONTEXT" \
"|ND_LOG_SOURCE" \
/*"|ND_MODULE" */ \
"|ND_ALERT_NAME" \
"|ND_ALERT_CLASS" \
"|ND_ALERT_COMPONENT" \
"|ND_ALERT_TYPE" \
"|ND_ALERT_STATUS" \
\
""
// ----------------------------------------------------------------------------
static SD_JOURNAL_FILE_SOURCE_TYPE get_internal_source_type(const char *value) {
if(strcmp(value, SDJF_SOURCE_ALL_NAME) == 0)
return SDJF_ALL;
else if(strcmp(value, SDJF_SOURCE_LOCAL_NAME) == 0)
return SDJF_LOCAL_ALL;
else if(strcmp(value, SDJF_SOURCE_REMOTES_NAME) == 0)
return SDJF_REMOTE_ALL;
else if(strcmp(value, SDJF_SOURCE_NAMESPACES_NAME) == 0)
return SDJF_LOCAL_NAMESPACE;
else if(strcmp(value, SDJF_SOURCE_LOCAL_SYSTEM_NAME) == 0)
return SDJF_LOCAL_SYSTEM;
else if(strcmp(value, SDJF_SOURCE_LOCAL_USERS_NAME) == 0)
return SDJF_LOCAL_USER;
else if(strcmp(value, SDJF_SOURCE_LOCAL_OTHER_NAME) == 0)
return SDJF_LOCAL_OTHER;
return SDJF_NONE;
}
// ----------------------------------------------------------------------------
static inline bool netdata_systemd_journal_seek_to(sd_journal *j, usec_t timestamp) {
if(sd_journal_seek_realtime_usec(j, timestamp) < 0) {
netdata_log_error("SYSTEMD-JOURNAL: Failed to seek to %" PRIu64, timestamp);
if(sd_journal_seek_tail(j) < 0) {
netdata_log_error("SYSTEMD-JOURNAL: Failed to seek to journal's tail");
return false;
}
}
return true;
}
#define JD_SOURCE_REALTIME_TIMESTAMP "_SOURCE_REALTIME_TIMESTAMP"
// ----------------------------------------------------------------------------
static inline size_t netdata_systemd_journal_process_row(sd_journal *j, FACETS *facets, struct journal_file *jf, usec_t *msg_ut) {
const void *data;
size_t length, bytes = 0;
facets_add_key_value_length(facets, JOURNAL_KEY_ND_JOURNAL_FILE, sizeof(JOURNAL_KEY_ND_JOURNAL_FILE) - 1, jf->filename, jf->filename_len);
SD_JOURNAL_FOREACH_DATA(j, data, length) {
const char *key, *value;
size_t key_length, value_length;
if(!parse_journal_field(data, length, &key, &key_length, &value, &value_length))
continue;
#ifdef NETDATA_INTERNAL_CHECKS
usec_t origin_journal_ut = *msg_ut;
#endif
if(unlikely(key_length == sizeof(JD_SOURCE_REALTIME_TIMESTAMP) - 1 &&
memcmp(key, JD_SOURCE_REALTIME_TIMESTAMP, sizeof(JD_SOURCE_REALTIME_TIMESTAMP) - 1) == 0)) {
usec_t ut = str2ull(value, NULL);
if(ut && ut < *msg_ut) {
usec_t delta = *msg_ut - ut;
*msg_ut = ut;
if(delta > JOURNAL_VS_REALTIME_DELTA_MAX_UT)
delta = JOURNAL_VS_REALTIME_DELTA_MAX_UT;
// update max_journal_vs_realtime_delta_ut if the delta increased
usec_t expected = jf->max_journal_vs_realtime_delta_ut;
do {
if(delta <= expected)
break;
} while(!__atomic_compare_exchange_n(&jf->max_journal_vs_realtime_delta_ut, &expected, delta, false, __ATOMIC_RELAXED, __ATOMIC_RELAXED));
internal_error(delta > expected,
"increased max_journal_vs_realtime_delta_ut from %"PRIu64" to %"PRIu64", "
"journal %"PRIu64", actual %"PRIu64" (delta %"PRIu64")"
, expected, delta, origin_journal_ut, *msg_ut, origin_journal_ut - (*msg_ut));
}
}
bytes += length;
facets_add_key_value_length(facets, key, key_length, value, value_length <= FACET_MAX_VALUE_LENGTH ? value_length : FACET_MAX_VALUE_LENGTH);
}
return bytes;
}
#define FUNCTION_PROGRESS_UPDATE_ROWS(rows_read, rows) __atomic_fetch_add(&(rows_read), rows, __ATOMIC_RELAXED)
#define FUNCTION_PROGRESS_UPDATE_BYTES(bytes_read, bytes) __atomic_fetch_add(&(bytes_read), bytes, __ATOMIC_RELAXED)
#define FUNCTION_PROGRESS_EVERY_ROWS (1ULL << 13)
#define FUNCTION_DATA_ONLY_CHECK_EVERY_ROWS (1ULL << 7)
static inline ND_SD_JOURNAL_STATUS check_stop(const bool *cancelled, const usec_t *stop_monotonic_ut) {
if(cancelled && __atomic_load_n(cancelled, __ATOMIC_RELAXED)) {
internal_error(true, "Function has been cancelled");
return ND_SD_JOURNAL_CANCELLED;
}
if(now_monotonic_usec() > __atomic_load_n(stop_monotonic_ut, __ATOMIC_RELAXED)) {
internal_error(true, "Function timed out");
return ND_SD_JOURNAL_TIMED_OUT;
}
return ND_SD_JOURNAL_OK;
}
ND_SD_JOURNAL_STATUS netdata_systemd_journal_query_backward(
sd_journal *j, BUFFER *wb __maybe_unused, FACETS *facets,
struct journal_file *jf,
LOGS_QUERY_STATUS *fqs) {
usec_t anchor_delta = __atomic_load_n(&jf->max_journal_vs_realtime_delta_ut, __ATOMIC_RELAXED);
lqs_query_timeframe(fqs, anchor_delta);
usec_t start_ut = fqs->query.start_ut;
usec_t stop_ut = fqs->query.stop_ut;
bool stop_when_full = fqs->query.stop_when_full;
fqs->c.query_file.start_ut = start_ut;
fqs->c.query_file.stop_ut = stop_ut;
if(!netdata_systemd_journal_seek_to(j, start_ut))
return ND_SD_JOURNAL_FAILED_TO_SEEK;
size_t errors_no_timestamp = 0;
usec_t latest_msg_ut = 0; // the biggest timestamp we have seen so far
usec_t first_msg_ut = 0; // the first message we got from the db
size_t row_counter = 0, last_row_counter = 0, rows_useful = 0;
size_t bytes = 0, last_bytes = 0;
usec_t last_usec_from = 0;
usec_t last_usec_to = 0;
ND_SD_JOURNAL_STATUS status = ND_SD_JOURNAL_OK;
facets_rows_begin(facets);
while (status == ND_SD_JOURNAL_OK && sd_journal_previous(j) > 0) {
usec_t msg_ut = 0;
if(sd_journal_get_realtime_usec(j, &msg_ut) < 0 || !msg_ut) {
errors_no_timestamp++;
continue;
}
if (unlikely(msg_ut > start_ut))
continue;
if (unlikely(msg_ut < stop_ut))
break;
if(unlikely(msg_ut > latest_msg_ut))
latest_msg_ut = msg_ut;
if(unlikely(!first_msg_ut)) {
first_msg_ut = msg_ut;
fqs->c.query_file.first_msg_ut = msg_ut;
#ifdef HAVE_SD_JOURNAL_GET_SEQNUM
if(sd_journal_get_seqnum(j, &fqs->c.query_file.first_msg_seqnum, &fqs->c.query_file.first_msg_writer) < 0) {
fqs->c.query_file.first_msg_seqnum = 0;
fqs->c.query_file.first_msg_writer = SD_ID128_NULL;
}
#endif
}
sampling_t sample = is_row_in_sample(j, fqs, jf, msg_ut,
FACETS_ANCHOR_DIRECTION_BACKWARD,
facets_row_candidate_to_keep(facets, msg_ut));
if(sample == SAMPLING_FULL) {
bytes += netdata_systemd_journal_process_row(j, facets, jf, &msg_ut);
// make sure each line gets a unique timestamp
if(unlikely(msg_ut >= last_usec_from && msg_ut <= last_usec_to))
msg_ut = --last_usec_from;
else
last_usec_from = last_usec_to = msg_ut;
if(facets_row_finished(facets, msg_ut))
rows_useful++;
row_counter++;
if(unlikely((row_counter % FUNCTION_DATA_ONLY_CHECK_EVERY_ROWS) == 0 &&
stop_when_full &&
facets_rows(facets) >= fqs->rq.entries)) {
// stop the data only query
usec_t oldest = facets_row_oldest_ut(facets);
if(oldest && msg_ut < (oldest - anchor_delta))
break;
}
if(unlikely(row_counter % FUNCTION_PROGRESS_EVERY_ROWS == 0)) {
FUNCTION_PROGRESS_UPDATE_ROWS(fqs->c.rows_read, row_counter - last_row_counter);
last_row_counter = row_counter;
FUNCTION_PROGRESS_UPDATE_BYTES(fqs->c.bytes_read, bytes - last_bytes);
last_bytes = bytes;
status = check_stop(fqs->cancelled, fqs->stop_monotonic_ut);
}
}
else if(sample == SAMPLING_SKIP_FIELDS)
facets_row_finished_unsampled(facets, msg_ut);
else {
sampling_update_running_query_file_estimates(facets, j, fqs, jf, msg_ut, FACETS_ANCHOR_DIRECTION_BACKWARD);
break;
}
}
FUNCTION_PROGRESS_UPDATE_ROWS(fqs->c.rows_read, row_counter - last_row_counter);
FUNCTION_PROGRESS_UPDATE_BYTES(fqs->c.bytes_read, bytes - last_bytes);
fqs->c.rows_useful += rows_useful;
if(errors_no_timestamp)
netdata_log_error("SYSTEMD-JOURNAL: %zu lines did not have timestamps", errors_no_timestamp);
if(latest_msg_ut > fqs->last_modified)
fqs->last_modified = latest_msg_ut;
return status;
}
ND_SD_JOURNAL_STATUS netdata_systemd_journal_query_forward(
sd_journal *j, BUFFER *wb __maybe_unused, FACETS *facets,
struct journal_file *jf,
LOGS_QUERY_STATUS *fqs) {
usec_t anchor_delta = __atomic_load_n(&jf->max_journal_vs_realtime_delta_ut, __ATOMIC_RELAXED);
lqs_query_timeframe(fqs, anchor_delta);
usec_t start_ut = fqs->query.start_ut;
usec_t stop_ut = fqs->query.stop_ut;
bool stop_when_full = fqs->query.stop_when_full;
fqs->c.query_file.start_ut = start_ut;
fqs->c.query_file.stop_ut = stop_ut;
if(!netdata_systemd_journal_seek_to(j, start_ut))
return ND_SD_JOURNAL_FAILED_TO_SEEK;
size_t errors_no_timestamp = 0;
usec_t latest_msg_ut = 0; // the biggest timestamp we have seen so far
usec_t first_msg_ut = 0; // the first message we got from the db
size_t row_counter = 0, last_row_counter = 0, rows_useful = 0;
size_t bytes = 0, last_bytes = 0;
usec_t last_usec_from = 0;
usec_t last_usec_to = 0;
ND_SD_JOURNAL_STATUS status = ND_SD_JOURNAL_OK;
facets_rows_begin(facets);
while (status == ND_SD_JOURNAL_OK && sd_journal_next(j) > 0) {
usec_t msg_ut = 0;
if(sd_journal_get_realtime_usec(j, &msg_ut) < 0 || !msg_ut) {
errors_no_timestamp++;
continue;
}
if (unlikely(msg_ut < start_ut))
continue;
if (unlikely(msg_ut > stop_ut))
break;
if(likely(msg_ut > latest_msg_ut))
latest_msg_ut = msg_ut;
if(unlikely(!first_msg_ut)) {
first_msg_ut = msg_ut;
fqs->c.query_file.first_msg_ut = msg_ut;
}
sampling_t sample = is_row_in_sample(j, fqs, jf, msg_ut,
FACETS_ANCHOR_DIRECTION_FORWARD,
facets_row_candidate_to_keep(facets, msg_ut));
if(sample == SAMPLING_FULL) {
bytes += netdata_systemd_journal_process_row(j, facets, jf, &msg_ut);
// make sure each line gets a unique timestamp
if(unlikely(msg_ut >= last_usec_from && msg_ut <= last_usec_to))
msg_ut = ++last_usec_to;
else
last_usec_from = last_usec_to = msg_ut;
if(facets_row_finished(facets, msg_ut))
rows_useful++;
row_counter++;
if(unlikely((row_counter % FUNCTION_DATA_ONLY_CHECK_EVERY_ROWS) == 0 &&
stop_when_full &&
facets_rows(facets) >= fqs->rq.entries)) {
// stop the data only query
usec_t newest = facets_row_newest_ut(facets);
if(newest && msg_ut > (newest + anchor_delta))
break;
}
if(unlikely(row_counter % FUNCTION_PROGRESS_EVERY_ROWS == 0)) {
FUNCTION_PROGRESS_UPDATE_ROWS(fqs->c.rows_read, row_counter - last_row_counter);
last_row_counter = row_counter;
FUNCTION_PROGRESS_UPDATE_BYTES(fqs->c.bytes_read, bytes - last_bytes);
last_bytes = bytes;
status = check_stop(fqs->cancelled, fqs->stop_monotonic_ut);
}
}
else if(sample == SAMPLING_SKIP_FIELDS)
facets_row_finished_unsampled(facets, msg_ut);
else {
sampling_update_running_query_file_estimates(facets, j, fqs, jf, msg_ut, FACETS_ANCHOR_DIRECTION_FORWARD);
break;
}
}
FUNCTION_PROGRESS_UPDATE_ROWS(fqs->c.rows_read, row_counter - last_row_counter);
FUNCTION_PROGRESS_UPDATE_BYTES(fqs->c.bytes_read, bytes - last_bytes);
fqs->c.rows_useful += rows_useful;
if(errors_no_timestamp)
netdata_log_error("SYSTEMD-JOURNAL: %zu lines did not have timestamps", errors_no_timestamp);
if(latest_msg_ut > fqs->last_modified)
fqs->last_modified = latest_msg_ut;
return status;
}
bool netdata_systemd_journal_check_if_modified_since(sd_journal *j, usec_t seek_to, usec_t last_modified) {
// return true, if data have been modified since the timestamp
if(!last_modified || !seek_to)
return false;
if(!netdata_systemd_journal_seek_to(j, seek_to))
return false;
usec_t first_msg_ut = 0;
while (sd_journal_previous(j) > 0) {
usec_t msg_ut;
if(sd_journal_get_realtime_usec(j, &msg_ut) < 0)
continue;
first_msg_ut = msg_ut;
break;
}
return first_msg_ut != last_modified;
}
#ifdef HAVE_SD_JOURNAL_RESTART_FIELDS
static bool netdata_systemd_filtering_by_journal(sd_journal *j, FACETS *facets, LOGS_QUERY_STATUS *lqs) {
const char *field = NULL;
const void *data = NULL;
size_t data_length;
size_t added_keys = 0;
size_t failures = 0;
size_t filters_added = 0;
SD_JOURNAL_FOREACH_FIELD(j, field) { // for each key
bool interesting;
if(lqs->rq.data_only)
interesting = facets_key_name_is_filter(facets, field);
else
interesting = facets_key_name_is_facet(facets, field);
if(interesting) {
if(sd_journal_query_unique(j, field) >= 0) {
bool added_this_key = false;
size_t added_values = 0;
SD_JOURNAL_FOREACH_UNIQUE(j, data, data_length) { // for each value of the key
const char *key, *value;
size_t key_length, value_length;
if(!parse_journal_field(data, data_length, &key, &key_length, &value, &value_length))
continue;
facets_add_possible_value_name_to_key(facets, key, key_length, value, value_length);
if(!facets_key_name_value_length_is_selected(facets, key, key_length, value, value_length))
continue;
if(added_keys && !added_this_key) {
if(sd_journal_add_conjunction(j) < 0) // key AND key AND key
failures++;
added_this_key = true;
added_keys++;
}
else if(added_values)
if(sd_journal_add_disjunction(j) < 0) // value OR value OR value
failures++;
if(sd_journal_add_match(j, data, data_length) < 0)
failures++;
if(!added_keys) {
added_keys++;
added_this_key = true;
}
added_values++;
filters_added++;
}
}
}
}
if(failures) {
lqs_log_error(lqs, "failed to setup journal filter, will run the full query.");
sd_journal_flush_matches(j);
return true;
}
return filters_added ? true : false;
}
#endif // HAVE_SD_JOURNAL_RESTART_FIELDS
static ND_SD_JOURNAL_STATUS netdata_systemd_journal_query_one_file(
const char *filename, BUFFER *wb, FACETS *facets,
struct journal_file *jf,
LOGS_QUERY_STATUS *fqs) {
sd_journal *j = NULL;
errno_clear();
fstat_cache_enable_on_thread();
const char *paths[2] = {
[0] = filename,
[1] = NULL,
};
if(sd_journal_open_files(&j, paths, ND_SD_JOURNAL_OPEN_FLAGS) < 0 || !j) {
netdata_log_error("JOURNAL: cannot open file '%s' for query", filename);
fstat_cache_disable_on_thread();
return ND_SD_JOURNAL_FAILED_TO_OPEN;
}
ND_SD_JOURNAL_STATUS status;
bool matches_filters = true;
#ifdef HAVE_SD_JOURNAL_RESTART_FIELDS
if(fqs->rq.slice) {
usec_t started = now_monotonic_usec();
matches_filters = netdata_systemd_filtering_by_journal(j, facets, fqs) || !fqs->rq.filters;
usec_t ended = now_monotonic_usec();
fqs->c.matches_setup_ut += (ended - started);
}
#endif // HAVE_SD_JOURNAL_RESTART_FIELDS
if(matches_filters) {
if(fqs->rq.direction == FACETS_ANCHOR_DIRECTION_FORWARD)
status = netdata_systemd_journal_query_forward(j, wb, facets, jf, fqs);
else
status = netdata_systemd_journal_query_backward(j, wb, facets, jf, fqs);
}
else
status = ND_SD_JOURNAL_NO_FILE_MATCHED;
sd_journal_close(j);
fstat_cache_disable_on_thread();
return status;
}
static bool jf_is_mine(struct journal_file *jf, LOGS_QUERY_STATUS *fqs) {
if((fqs->rq.source_type == SDJF_NONE && !fqs->rq.sources) || (jf->source_type & fqs->rq.source_type) ||
(fqs->rq.sources && simple_pattern_matches(fqs->rq.sources, string2str(jf->source)))) {
if(!jf->msg_last_ut)
// the file is not scanned yet, or the timestamps have not been updated,
// so we don't know if it can contribute or not - let's add it.
return true;
usec_t anchor_delta = JOURNAL_VS_REALTIME_DELTA_MAX_UT;
usec_t first_ut = jf->msg_first_ut - anchor_delta;
usec_t last_ut = jf->msg_last_ut + anchor_delta;
if(last_ut >= fqs->rq.after_ut && first_ut <= fqs->rq.before_ut)
return true;
}
return false;
}
static int netdata_systemd_journal_query(BUFFER *wb, LOGS_QUERY_STATUS *lqs) {
FACETS *facets = lqs->facets;
ND_SD_JOURNAL_STATUS status = ND_SD_JOURNAL_NO_FILE_MATCHED;
struct journal_file *jf;
lqs->c.files_matched = 0;
lqs->c.file_working = 0;
lqs->c.rows_useful = 0;
lqs->c.rows_read = 0;
lqs->c.bytes_read = 0;
size_t files_used = 0;
size_t files_max = dictionary_entries(journal_files_registry);
const DICTIONARY_ITEM *file_items[files_max];
// count the files
bool files_are_newer = false;
dfe_start_read(journal_files_registry, jf) {
if(!jf_is_mine(jf, lqs))
continue;
file_items[files_used++] = dictionary_acquired_item_dup(journal_files_registry, jf_dfe.item);
if(jf->msg_last_ut > lqs->rq.if_modified_since)
files_are_newer = true;
}
dfe_done(jf);
lqs->c.files_matched = files_used;
if(lqs->rq.if_modified_since && !files_are_newer) {
// release the files
for(size_t f = 0; f < files_used ;f++)
dictionary_acquired_item_release(journal_files_registry, file_items[f]);
return rrd_call_function_error(wb, "No new data since the previous call.", HTTP_RESP_NOT_MODIFIED);
}
// sort the files, so that they are optimal for facets
if(files_used >= 2) {
if (lqs->rq.direction == FACETS_ANCHOR_DIRECTION_BACKWARD)
qsort(file_items, files_used, sizeof(const DICTIONARY_ITEM *),
journal_file_dict_items_backward_compar);
else
qsort(file_items, files_used, sizeof(const DICTIONARY_ITEM *),
journal_file_dict_items_forward_compar);
}
bool partial = false;
usec_t query_started_ut = now_monotonic_usec();
usec_t started_ut = query_started_ut;
usec_t ended_ut = started_ut;
usec_t duration_ut = 0, max_duration_ut = 0;
usec_t progress_duration_ut = 0;
sampling_query_init(lqs, facets);
buffer_json_member_add_array(wb, "_journal_files");
for(size_t f = 0; f < files_used ;f++) {
const char *filename = dictionary_acquired_item_name(file_items[f]);
jf = dictionary_acquired_item_value(file_items[f]);
if(!jf_is_mine(jf, lqs))
continue;
started_ut = ended_ut;
// do not even try to do the query if we expect it to pass the timeout
if(ended_ut + max_duration_ut * 3 >= *lqs->stop_monotonic_ut) {
partial = true;
status = ND_SD_JOURNAL_TIMED_OUT;
break;
}
lqs->c.file_working++;
// fqs->cached_count = 0;
size_t fs_calls = fstat_thread_calls;
size_t fs_cached = fstat_thread_cached_responses;
size_t rows_useful = lqs->c.rows_useful;
size_t rows_read = lqs->c.rows_read;
size_t bytes_read = lqs->c.bytes_read;
size_t matches_setup_ut = lqs->c.matches_setup_ut;
sampling_file_init(lqs, jf);
ND_SD_JOURNAL_STATUS tmp_status = netdata_systemd_journal_query_one_file(filename, wb, facets, jf, lqs);
// nd_log(NDLS_COLLECTORS, NDLP_INFO,
// "JOURNAL ESTIMATION FINAL: '%s' "
// "total lines %zu [sampled=%zu, unsampled=%zu, estimated=%zu], "
// "file [%"PRIu64" - %"PRIu64", duration %"PRId64", known lines in file %zu], "
// "query [%"PRIu64" - %"PRIu64", duration %"PRId64"], "
// , jf->filename
// , fqs->samples_per_file.sampled + fqs->samples_per_file.unsampled + fqs->samples_per_file.estimated
// , fqs->samples_per_file.sampled, fqs->samples_per_file.unsampled, fqs->samples_per_file.estimated
// , jf->msg_first_ut, jf->msg_last_ut, jf->msg_last_ut - jf->msg_first_ut, jf->messages_in_file
// , fqs->query_file.start_ut, fqs->query_file.stop_ut, fqs->query_file.stop_ut - fqs->query_file.start_ut
// );
rows_useful = lqs->c.rows_useful - rows_useful;
rows_read = lqs->c.rows_read - rows_read;
bytes_read = lqs->c.bytes_read - bytes_read;
matches_setup_ut = lqs->c.matches_setup_ut - matches_setup_ut;
fs_calls = fstat_thread_calls - fs_calls;
fs_cached = fstat_thread_cached_responses - fs_cached;
ended_ut = now_monotonic_usec();
duration_ut = ended_ut - started_ut;
if(duration_ut > max_duration_ut)
max_duration_ut = duration_ut;
progress_duration_ut += duration_ut;
if(progress_duration_ut >= SYSTEMD_JOURNAL_PROGRESS_EVERY_UT) {
progress_duration_ut = 0;
netdata_mutex_lock(&stdout_mutex);
pluginsd_function_progress_to_stdout(lqs->rq.transaction, f + 1, files_used);
netdata_mutex_unlock(&stdout_mutex);
}
buffer_json_add_array_item_object(wb); // journal file
{
// information about the file
buffer_json_member_add_string(wb, "_filename", filename);
buffer_json_member_add_uint64(wb, "_source_type", jf->source_type);
buffer_json_member_add_string(wb, "_source", string2str(jf->source));
buffer_json_member_add_uint64(wb, "_last_modified_ut", jf->file_last_modified_ut);
buffer_json_member_add_uint64(wb, "_msg_first_ut", jf->msg_first_ut);
buffer_json_member_add_uint64(wb, "_msg_last_ut", jf->msg_last_ut);
buffer_json_member_add_uint64(wb, "_journal_vs_realtime_delta_ut", jf->max_journal_vs_realtime_delta_ut);
// information about the current use of the file
buffer_json_member_add_uint64(wb, "duration_ut", ended_ut - started_ut);
buffer_json_member_add_uint64(wb, "rows_read", rows_read);
buffer_json_member_add_uint64(wb, "rows_useful", rows_useful);
buffer_json_member_add_double(wb, "rows_per_second", (double) rows_read / (double) duration_ut * (double) USEC_PER_SEC);
buffer_json_member_add_uint64(wb, "bytes_read", bytes_read);
buffer_json_member_add_double(wb, "bytes_per_second", (double) bytes_read / (double) duration_ut * (double) USEC_PER_SEC);
buffer_json_member_add_uint64(wb, "duration_matches_ut", matches_setup_ut);
buffer_json_member_add_uint64(wb, "fstat_query_calls", fs_calls);
buffer_json_member_add_uint64(wb, "fstat_query_cached_responses", fs_cached);
if(lqs->rq.sampling) {
buffer_json_member_add_object(wb, "_sampling");
{
buffer_json_member_add_uint64(wb, "sampled", lqs->c.samples_per_file.sampled);
buffer_json_member_add_uint64(wb, "unsampled", lqs->c.samples_per_file.unsampled);
buffer_json_member_add_uint64(wb, "estimated", lqs->c.samples_per_file.estimated);
}
buffer_json_object_close(wb); // _sampling
}
}
buffer_json_object_close(wb); // journal file
bool stop = false;
switch(tmp_status) {
case ND_SD_JOURNAL_OK:
case ND_SD_JOURNAL_NO_FILE_MATCHED:
status = (status == ND_SD_JOURNAL_OK) ? ND_SD_JOURNAL_OK : tmp_status;
break;
case ND_SD_JOURNAL_FAILED_TO_OPEN:
case ND_SD_JOURNAL_FAILED_TO_SEEK:
partial = true;
if(status == ND_SD_JOURNAL_NO_FILE_MATCHED)
status = tmp_status;
break;
case ND_SD_JOURNAL_CANCELLED:
case ND_SD_JOURNAL_TIMED_OUT:
partial = true;
stop = true;
status = tmp_status;
break;
case ND_SD_JOURNAL_NOT_MODIFIED:
internal_fatal(true, "this should never be returned here");
break;
}
if(stop)
break;
}
buffer_json_array_close(wb); // _journal_files
// release the files
for(size_t f = 0; f < files_used ;f++)
dictionary_acquired_item_release(journal_files_registry, file_items[f]);
switch (status) {
case ND_SD_JOURNAL_OK:
if(lqs->rq.if_modified_since && !lqs->c.rows_useful)
return rrd_call_function_error(wb, "No additional useful data since the previous call.", HTTP_RESP_NOT_MODIFIED);
break;
case ND_SD_JOURNAL_TIMED_OUT:
case ND_SD_JOURNAL_NO_FILE_MATCHED:
break;
case ND_SD_JOURNAL_CANCELLED:
return rrd_call_function_error(wb, "Request cancelled.", HTTP_RESP_CLIENT_CLOSED_REQUEST);
case ND_SD_JOURNAL_NOT_MODIFIED:
return rrd_call_function_error(wb, "No new data since the previous call.", HTTP_RESP_NOT_MODIFIED);
case ND_SD_JOURNAL_FAILED_TO_OPEN:
return rrd_call_function_error(wb, "Failed to open systemd journal file.", HTTP_RESP_INTERNAL_SERVER_ERROR);
case ND_SD_JOURNAL_FAILED_TO_SEEK:
return rrd_call_function_error(wb, "Failed to seek in systemd journal file.", HTTP_RESP_INTERNAL_SERVER_ERROR);
default:
return rrd_call_function_error(wb, "Unknown status", HTTP_RESP_INTERNAL_SERVER_ERROR);
}
buffer_json_member_add_uint64(wb, "status", HTTP_RESP_OK);
buffer_json_member_add_boolean(wb, "partial", partial);
buffer_json_member_add_string(wb, "type", "table");
// build a message for the query
if(!lqs->rq.data_only) {
CLEAN_BUFFER *msg = buffer_create(0, NULL);
CLEAN_BUFFER *msg_description = buffer_create(0, NULL);
ND_LOG_FIELD_PRIORITY msg_priority = NDLP_INFO;
if(!journal_files_completed_once()) {
buffer_strcat(msg, "Journals are still being scanned. ");
buffer_strcat(msg_description
, "LIBRARY SCAN: The journal files are still being scanned, you are probably viewing incomplete data. ");
msg_priority = NDLP_WARNING;
}
if(partial) {
buffer_strcat(msg, "Query timed-out, incomplete data. ");
buffer_strcat(msg_description
, "QUERY TIMEOUT: The query timed out and may not include all the data of the selected window. ");
msg_priority = NDLP_WARNING;
}
if(lqs->c.samples.estimated || lqs->c.samples.unsampled) {
double percent = (double) (lqs->c.samples.sampled * 100.0 /
(lqs->c.samples.estimated + lqs->c.samples.unsampled + lqs->c.samples.sampled));
buffer_sprintf(msg, "%.2f%% real data", percent);
buffer_sprintf(msg_description, "ACTUAL DATA: The filters counters reflect %0.2f%% of the data. ", percent);
msg_priority = MIN(msg_priority, NDLP_NOTICE);
}
if(lqs->c.samples.unsampled) {
double percent = (double) (lqs->c.samples.unsampled * 100.0 /
(lqs->c.samples.estimated + lqs->c.samples.unsampled + lqs->c.samples.sampled));
buffer_sprintf(msg, ", %.2f%% unsampled", percent);
buffer_sprintf(msg_description
, "UNSAMPLED DATA: %0.2f%% of the events exist and have been counted, but their values have not been evaluated, so they are not included in the filters counters. "
, percent);
msg_priority = MIN(msg_priority, NDLP_NOTICE);
}
if(lqs->c.samples.estimated) {
double percent = (double) (lqs->c.samples.estimated * 100.0 /
(lqs->c.samples.estimated + lqs->c.samples.unsampled + lqs->c.samples.sampled));
buffer_sprintf(msg, ", %.2f%% estimated", percent);
buffer_sprintf(msg_description
, "ESTIMATED DATA: The query selected a large amount of data, so to avoid delaying too much, the presented data are estimated by %0.2f%%. "
, percent);
msg_priority = MIN(msg_priority, NDLP_NOTICE);
}
buffer_json_member_add_object(wb, "message");
if(buffer_tostring(msg)) {
buffer_json_member_add_string(wb, "title", buffer_tostring(msg));
buffer_json_member_add_string(wb, "description", buffer_tostring(msg_description));
buffer_json_member_add_string(wb, "status", nd_log_id2priority(msg_priority));
}
// else send an empty object if there is nothing to tell
buffer_json_object_close(wb); // message
}
if(!lqs->rq.data_only) {
buffer_json_member_add_time_t(wb, "update_every", 1);
buffer_json_member_add_string(wb, "help", SYSTEMD_JOURNAL_FUNCTION_DESCRIPTION);
}
if(!lqs->rq.data_only || lqs->rq.tail)
buffer_json_member_add_uint64(wb, "last_modified", lqs->last_modified);
facets_sort_and_reorder_keys(facets);
facets_report(facets, wb, used_hashes_registry);
wb->expires = now_realtime_sec() + (lqs->rq.data_only ? 3600 : 0);
buffer_json_member_add_time_t(wb, "expires", wb->expires);
buffer_json_member_add_object(wb, "_fstat_caching");
{
buffer_json_member_add_uint64(wb, "calls", fstat_thread_calls);
buffer_json_member_add_uint64(wb, "cached", fstat_thread_cached_responses);
}
buffer_json_object_close(wb); // _fstat_caching
if(lqs->rq.sampling) {
buffer_json_member_add_object(wb, "_sampling");
{
buffer_json_member_add_uint64(wb, "sampled", lqs->c.samples.sampled);
buffer_json_member_add_uint64(wb, "unsampled", lqs->c.samples.unsampled);
buffer_json_member_add_uint64(wb, "estimated", lqs->c.samples.estimated);
}
buffer_json_object_close(wb); // _sampling
}
wb->content_type = CT_APPLICATION_JSON;
wb->response_code = HTTP_RESP_OK;
return wb->response_code;
}
static void systemd_journal_register_transformations(LOGS_QUERY_STATUS *lqs) {
FACETS *facets = lqs->facets;
LOGS_QUERY_REQUEST *rq = &lqs->rq;
// ----------------------------------------------------------------------------------------------------------------
// register the fields in the order you want them on the dashboard
facets_register_row_severity(facets, syslog_priority_to_facet_severity, NULL);
facets_register_key_name(
facets, "_HOSTNAME", rq->default_facet | FACET_KEY_OPTION_VISIBLE);
facets_register_dynamic_key_name(
facets, JOURNAL_KEY_ND_JOURNAL_PROCESS,
FACET_KEY_OPTION_NEVER_FACET | FACET_KEY_OPTION_VISIBLE,
netdata_systemd_journal_dynamic_row_id, NULL);
facets_register_key_name(
facets, "MESSAGE",
FACET_KEY_OPTION_NEVER_FACET | FACET_KEY_OPTION_MAIN_TEXT |
FACET_KEY_OPTION_VISIBLE | FACET_KEY_OPTION_FTS);
// facets_register_dynamic_key_name(
// facets, "MESSAGE",
// FACET_KEY_OPTION_NEVER_FACET | FACET_KEY_OPTION_MAIN_TEXT | FACET_KEY_OPTION_RICH_TEXT |
// FACET_KEY_OPTION_VISIBLE | FACET_KEY_OPTION_FTS,
// netdata_systemd_journal_rich_message, NULL);
facets_register_key_name_transformation(
facets, "PRIORITY",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW |
FACET_KEY_OPTION_EXPANDED_FILTER,
netdata_systemd_journal_transform_priority, NULL);
facets_register_key_name_transformation(
facets, "SYSLOG_FACILITY",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW |
FACET_KEY_OPTION_EXPANDED_FILTER,
netdata_systemd_journal_transform_syslog_facility, NULL);
facets_register_key_name_transformation(
facets, "ERRNO",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_errno, NULL);
facets_register_key_name(
facets, JOURNAL_KEY_ND_JOURNAL_FILE,
FACET_KEY_OPTION_NEVER_FACET);
facets_register_key_name(
facets, "SYSLOG_IDENTIFIER", rq->default_facet);
facets_register_key_name(
facets, "UNIT", rq->default_facet);
facets_register_key_name(
facets, "USER_UNIT", rq->default_facet);
facets_register_key_name_transformation(
facets, "MESSAGE_ID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW |
FACET_KEY_OPTION_EXPANDED_FILTER,
netdata_systemd_journal_transform_message_id, NULL);
facets_register_key_name_transformation(
facets, "_BOOT_ID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_boot_id, NULL);
facets_register_key_name_transformation(
facets, "_SYSTEMD_OWNER_UID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "_UID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "OBJECT_SYSTEMD_OWNER_UID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "OBJECT_UID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "_GID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_gid, NULL);
facets_register_key_name_transformation(
facets, "OBJECT_GID",
rq->default_facet | FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_gid, NULL);
facets_register_key_name_transformation(
facets, "_CAP_EFFECTIVE",
FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_cap_effective, NULL);
facets_register_key_name_transformation(
facets, "_AUDIT_LOGINUID",
FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "OBJECT_AUDIT_LOGINUID",
FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_uid, NULL);
facets_register_key_name_transformation(
facets, "_SOURCE_REALTIME_TIMESTAMP",
FACET_KEY_OPTION_TRANSFORM_VIEW,
netdata_systemd_journal_transform_timestamp_usec, NULL);
}
void function_systemd_journal(const char *transaction, char *function, usec_t *stop_monotonic_ut, bool *cancelled,
BUFFER *payload, HTTP_ACCESS access __maybe_unused,
const char *source __maybe_unused, void *data __maybe_unused) {
fstat_thread_calls = 0;
fstat_thread_cached_responses = 0;
#ifdef HAVE_SD_JOURNAL_RESTART_FIELDS
bool have_slice = true;
#else
bool have_slice = false;
#endif // HAVE_SD_JOURNAL_RESTART_FIELDS
LOGS_QUERY_STATUS tmp_fqs = {
.facets = lqs_facets_create(
LQS_DEFAULT_ITEMS_PER_QUERY,
FACETS_OPTION_ALL_KEYS_FTS | FACETS_OPTION_HASH_IDS,
SYSTEMD_ALWAYS_VISIBLE_KEYS,
SYSTEMD_KEYS_INCLUDED_IN_FACETS,
SYSTEMD_KEYS_EXCLUDED_FROM_FACETS,
have_slice),
.rq = LOGS_QUERY_REQUEST_DEFAULTS(transaction, LQS_DEFAULT_SLICE_MODE, JOURNAL_DEFAULT_DIRECTION),
.cancelled = cancelled,
.stop_monotonic_ut = stop_monotonic_ut,
};
LOGS_QUERY_STATUS *lqs = &tmp_fqs;
CLEAN_BUFFER *wb = lqs_create_output_buffer();
// ------------------------------------------------------------------------
// parse the parameters
if(lqs_request_parse_and_validate(lqs, wb, function, payload, have_slice, "PRIORITY")) {
systemd_journal_register_transformations(lqs);
// ------------------------------------------------------------------------
// add versions to the response
buffer_json_journal_versions(wb);
// ------------------------------------------------------------------------
// run the request
if (lqs->rq.info)
lqs_info_response(wb, lqs->facets);
else {
netdata_systemd_journal_query(wb, lqs);
if (wb->response_code == HTTP_RESP_OK)
buffer_json_finalize(wb);
}
}
netdata_mutex_lock(&stdout_mutex);
pluginsd_function_result_to_stdout(transaction, wb);
netdata_mutex_unlock(&stdout_mutex);
lqs_cleanup(lqs);
}
|