summaryrefslogtreecommitdiffstats
path: root/database/sqlite/sqlite_context.c
blob: 9c7a61c6e08b2f14fe54d4086732490a82c4c2e3 (plain)
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
// SPDX-License-Identifier: GPL-3.0-or-later

#include "sqlite_functions.h"
#include "sqlite_context.h"
#include "sqlite_db_migration.h"

#define DB_CONTEXT_METADATA_VERSION 1

const char *database_context_config[] = {
    "CREATE TABLE IF NOT EXISTS context (host_id BLOB, id TEXT NOT NULL, version INT NOT NULL, title TEXT NOT NULL, " \
    "chart_type TEXT NOT NULL, unit TEXT NOT NULL, priority INT NOT NULL, first_time_t INT NOT NULL, "
    "last_time_t INT NOT NULL, deleted INT NOT NULL, "
    "family TEXT, PRIMARY KEY (host_id, id));",

    NULL
};

const char *database_context_cleanup[] = {
    "VACUUM;",
    NULL
};

sqlite3 *db_context_meta = NULL;
/*
 * Initialize the SQLite database
 * Return 0 on success
 */
int sql_init_context_database(int memory)
{
    char sqlite_database[FILENAME_MAX + 1];
    int rc;

    if (likely(!memory))
        snprintfz(sqlite_database, FILENAME_MAX, "%s/context-meta.db", netdata_configured_cache_dir);
    else
        strcpy(sqlite_database, ":memory:");

    rc = sqlite3_open(sqlite_database, &db_context_meta);
    if (rc != SQLITE_OK) {
        error_report("Failed to initialize database at %s, due to \"%s\"", sqlite_database, sqlite3_errstr(rc));
        sqlite3_close(db_context_meta);
        db_context_meta = NULL;
        return 1;
    }

    info("SQLite database %s initialization", sqlite_database);

    char buf[1024 + 1] = "";
    const char *list[2] = { buf, NULL };

    int target_version = DB_CONTEXT_METADATA_VERSION;
    if (likely(!memory))
        target_version = perform_context_database_migration(db_context_meta, DB_CONTEXT_METADATA_VERSION);

    // https://www.sqlite.org/pragma.html#pragma_auto_vacuum
    // PRAGMA schema.auto_vacuum = 0 | NONE | 1 | FULL | 2 | INCREMENTAL;
    snprintfz(buf, 1024, "PRAGMA auto_vacuum=%s;", config_get(CONFIG_SECTION_SQLITE, "auto vacuum", "INCREMENTAL"));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    // https://www.sqlite.org/pragma.html#pragma_synchronous
    // PRAGMA schema.synchronous = 0 | OFF | 1 | NORMAL | 2 | FULL | 3 | EXTRA;
    snprintfz(buf, 1024, "PRAGMA synchronous=%s;", config_get(CONFIG_SECTION_SQLITE, "synchronous", "NORMAL"));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list))  return 1;

    // https://www.sqlite.org/pragma.html#pragma_journal_mode
    // PRAGMA schema.journal_mode = DELETE | TRUNCATE | PERSIST | MEMORY | WAL | OFF
    snprintfz(buf, 1024, "PRAGMA journal_mode=%s;", config_get(CONFIG_SECTION_SQLITE, "journal mode", "WAL"));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    // https://www.sqlite.org/pragma.html#pragma_temp_store
    // PRAGMA temp_store = 0 | DEFAULT | 1 | FILE | 2 | MEMORY;
    snprintfz(buf, 1024, "PRAGMA temp_store=%s;", config_get(CONFIG_SECTION_SQLITE, "temp store", "MEMORY"));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;
    
    // https://www.sqlite.org/pragma.html#pragma_journal_size_limit
    // PRAGMA schema.journal_size_limit = N ;
    snprintfz(buf, 1024, "PRAGMA journal_size_limit=%lld;", config_get_number(CONFIG_SECTION_SQLITE, "journal size limit", 16777216));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    // https://www.sqlite.org/pragma.html#pragma_cache_size
    // PRAGMA schema.cache_size = pages;
    // PRAGMA schema.cache_size = -kibibytes;
    snprintfz(buf, 1024, "PRAGMA cache_size=%lld;", config_get_number(CONFIG_SECTION_SQLITE, "cache size", -2000));
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    snprintfz(buf, 1024, "PRAGMA user_version=%d;", target_version);
    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    if (likely(!memory))
        snprintfz(buf, 1024, "ATTACH DATABASE \"%s/netdata-meta.db\" as meta;", netdata_configured_cache_dir);
    else
        snprintfz(buf, 1024, "ATTACH DATABASE ':memory:' as meta;");

    if(init_database_batch(db_context_meta, DB_CHECK_NONE, 0, list)) return 1;

    if (init_database_batch(db_context_meta, DB_CHECK_NONE, 0, &database_context_config[0]))
        return 1;

    if (init_database_batch(db_context_meta, DB_CHECK_NONE, 0, &database_context_cleanup[0]))
        return 1;

    return 0;
}

/*
 * Close the sqlite database
 */

void sql_close_context_database(void)
{
    int rc;
    if (unlikely(!db_context_meta))
        return;

    info("Closing context SQLite database");

    rc = sqlite3_close_v2(db_context_meta);
    if (unlikely(rc != SQLITE_OK))
        error_report("Error %d while closing the context SQLite database, %s", rc, sqlite3_errstr(rc));
    return;
}

//
// Fetching data
//
#define CTX_GET_CHART_LIST  "SELECT c.chart_id, c.type||'.'||c.id, c.name, c.context, c.title, c.unit, c.priority, " \
        "c.update_every, c.chart_type, c.family FROM meta.chart c WHERE c.host_id = @host_id and c.chart_id is not null; "

void ctx_get_chart_list(uuid_t *host_uuid, void (*dict_cb)(SQL_CHART_DATA *, void *), void *data)
{
    int rc;
    static __thread sqlite3_stmt *res = NULL;

    if (unlikely(!host_uuid)) {
       internal_error(true, "Requesting context chart list without host_id");
       return;
    }

    if (unlikely(!res)) {
        rc = prepare_statement(db_context_meta, CTX_GET_CHART_LIST, &res);
        if (rc != SQLITE_OK) {
            error_report("Failed to prepare statement to fetch chart list");
            return;
        }
    }

    rc = sqlite3_bind_blob(res, 1, host_uuid, sizeof(*host_uuid), SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind host_id to fetch the chart list");
        goto skip_load;
    }

    SQL_CHART_DATA chart_data = { 0 };
    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
        uuid_copy(chart_data.chart_id, *((uuid_t *)sqlite3_column_blob(res, 0)));
        chart_data.id = (char *) sqlite3_column_text(res, 1);
        chart_data.name = (char *) sqlite3_column_text(res, 2);
        chart_data.context = (char *) sqlite3_column_text(res, 3);
        chart_data.title = (char *) sqlite3_column_text(res, 4);
        chart_data.units = (char *) sqlite3_column_text(res, 5);
        chart_data.priority = sqlite3_column_int(res, 6);
        chart_data.update_every = sqlite3_column_int(res, 7);
        chart_data.chart_type = sqlite3_column_int(res, 8);
        chart_data.family = (char *) sqlite3_column_text(res, 9);
        dict_cb(&chart_data, data);
    }

skip_load:
    rc = sqlite3_reset(res);
    if (rc != SQLITE_OK)
        error_report("Failed to reset statement that fetches chart label data, rc = %d", rc);
}

// Dimension list
#define CTX_GET_DIMENSION_LIST  "SELECT d.dim_id, d.id, d.name, CASE WHEN INSTR(d.options,\"hidden\") > 0 THEN 1 ELSE 0 END " \
        "FROM meta.dimension d WHERE d.chart_id = @id and d.dim_id is not null ORDER BY d.rowid ASC;"
void ctx_get_dimension_list(uuid_t *chart_uuid, void (*dict_cb)(SQL_DIMENSION_DATA *, void *), void *data)
{
    int rc;
    static __thread sqlite3_stmt *res = NULL;

    if (unlikely(!res)) {
        rc = prepare_statement(db_context_meta, CTX_GET_DIMENSION_LIST, &res);
        if (rc != SQLITE_OK) {
            error_report("Failed to prepare statement to fetch chart dimension data");
            return;
        }
    }

    rc = sqlite3_bind_blob(res, 1, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind chart_id to fetch dimension list");
        goto failed;
    }

    SQL_DIMENSION_DATA dimension_data;

    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
        uuid_copy(dimension_data.dim_id, *((uuid_t *)sqlite3_column_blob(res, 0)));
        dimension_data.id = (char *) sqlite3_column_text(res, 1);
        dimension_data.name = (char *) sqlite3_column_text(res, 2);
        dimension_data.hidden = sqlite3_column_int(res, 3);
        dict_cb(&dimension_data, data);
    }

failed:
    rc = sqlite3_reset(res);
    if (rc != SQLITE_OK)
        error_report("Failed to reset statement that fetches the chart dimension list, rc = %d", rc);
}

// LABEL LIST
#define CTX_GET_LABEL_LIST  "SELECT l.label_key, l.label_value, l.source_type FROM meta.chart_label l WHERE l.chart_id = @id;"
void ctx_get_label_list(uuid_t *chart_uuid, void (*dict_cb)(SQL_CLABEL_DATA *, void *), void *data)
{
    int rc;
    static __thread sqlite3_stmt *res = NULL;

    if (unlikely(!res)) {
        rc = prepare_statement(db_context_meta, CTX_GET_LABEL_LIST, &res);
        if (rc != SQLITE_OK) {
            error_report("Failed to prepare statement to fetch chart labels");
            return;
        }
    }

    rc = sqlite3_bind_blob(res, 1, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind chart_id to fetch chart labels");
        goto failed;
    }

    SQL_CLABEL_DATA label_data;

    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
        label_data.label_key = (char *) sqlite3_column_text(res, 0);
        label_data.label_value = (char *) sqlite3_column_text(res, 1);
        label_data.label_source = sqlite3_column_int(res, 2);
        dict_cb(&label_data, data);
    }

failed:
    rc = sqlite3_reset(res);
    if (rc != SQLITE_OK)
        error_report("Failed to reset statement that fetches chart label data, rc = %d", rc);

    return;
}

// CONTEXT LIST
#define CTX_GET_CONTEXT_LIST  "SELECT id, version, title, chart_type, unit, priority, first_time_t, " \
            "last_time_t, deleted, family FROM context c WHERE c.host_id = @host_id;"
void ctx_get_context_list(uuid_t *host_uuid, void (*dict_cb)(VERSIONED_CONTEXT_DATA *, void *), void *data)
{

    if (unlikely(!host_uuid))
        return;

    int rc;
    static __thread sqlite3_stmt *res = NULL;

    if (unlikely(!res)) {
        rc = prepare_statement(db_context_meta, CTX_GET_CONTEXT_LIST, &res);
        if (rc != SQLITE_OK) {
            error_report("Failed to prepare statement to fetch stored context list");
            return;
        }
    }

    VERSIONED_CONTEXT_DATA context_data = {0};

    rc = sqlite3_bind_blob(res, 1, host_uuid, sizeof(*host_uuid), SQLITE_STATIC);

    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind host_id to fetch versioned context data");
        goto failed;
    }

    while (sqlite3_step_monitored(res) == SQLITE_ROW) {
        context_data.id = (char *) sqlite3_column_text(res, 0);
        context_data.version = sqlite3_column_int64(res, 1);
        context_data.title = (char *) sqlite3_column_text(res, 2);
        context_data.chart_type = (char *) sqlite3_column_text(res, 3);
        context_data.units = (char *) sqlite3_column_text(res, 4);
        context_data.priority = sqlite3_column_int64(res, 5);
        context_data.first_time_t = sqlite3_column_int64(res, 6);
        context_data.last_time_t = sqlite3_column_int64(res, 7);
        context_data.deleted = sqlite3_column_int(res, 8);
        context_data.family = (char *) sqlite3_column_text(res, 9);
        dict_cb(&context_data, data);
    }

failed:
    rc = sqlite3_reset(res);
    if (rc != SQLITE_OK)
        error_report("Failed to reset statement that fetches stored context versioned data, rc = %d", rc);
}


//
// Storing Data
//
#define CTX_STORE_CONTEXT "INSERT OR REPLACE INTO context " \
    "(host_id, id, version, title, chart_type, unit, priority, first_time_t, last_time_t, deleted, family) " \
    "VALUES (@host_id, @context, @version, @title, @chart_type, @unit, @priority, @first_time_t, @last_time_t, @deleted, @family);"

int ctx_store_context(uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)
{
    int rc, rc_stored = 1;
    sqlite3_stmt *res = NULL;

    if (unlikely(!host_uuid || !context_data || !context_data->id))
        return 0;

    rc = sqlite3_prepare_v2(db_context_meta, CTX_STORE_CONTEXT, -1, &res, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to prepare statement to store context");
        return 1;
    }

    rc = sqlite3_bind_blob(res, 1, host_uuid, sizeof(*host_uuid), SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind host_uuid to store context details");
        goto skip_store;
    }

    rc = bind_text_null(res, 2, context_data->id, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context to store details");
        goto skip_store;
    }

    rc = sqlite3_bind_int64(res, 3, (time_t) context_data->version);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind first_time_t to store context details");
        goto skip_store;
    }

    rc = bind_text_null(res, 4, context_data->title, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context to store details");
        goto skip_store;
    }

    rc = bind_text_null(res, 5, context_data->chart_type, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context to store details");
        goto skip_store;
    }

    rc = bind_text_null(res, 6, context_data->units, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context to store details");
        goto skip_store;
    }

    rc = sqlite3_bind_int64(res, 7, (time_t) context_data->priority);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind first_time_t to store context details");
        goto skip_store;
    }

    rc = sqlite3_bind_int64(res, 8, (time_t) context_data->first_time_t);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind first_time_t to store context details");
        goto skip_store;
    }

    rc = sqlite3_bind_int64(res, 9, (time_t) context_data->last_time_t);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind last_time_t to store context details");
        goto skip_store;
    }

    rc = sqlite3_bind_int(res, 10, (time_t) context_data->deleted);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind last_time_t to store context details");
        goto skip_store;
    }

    rc = bind_text_null(res, 11, context_data->family, 1);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context to store details");
        goto skip_store;
    }

    rc_stored = execute_insert(res);

    if (rc_stored != SQLITE_DONE)
        error_report("Failed store context details for context %s, rc = %d", context_data->id, rc_stored);

skip_store:
    rc = sqlite3_finalize(res);
    if (rc != SQLITE_OK)
        error_report("Failed to finalize statement that stores context details, rc = %d", rc);

    return (rc_stored != SQLITE_DONE);
}

// Delete a context

#define CTX_DELETE_CONTEXT "DELETE FROM context WHERE host_id = @host_id AND id = @context;"
int ctx_delete_context(uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)
{
    int rc, rc_stored = 1;
    sqlite3_stmt *res = NULL;

    if (unlikely(!context_data || !context_data->id))
        return 0;

    rc = sqlite3_prepare_v2(db_context_meta, CTX_DELETE_CONTEXT, -1, &res, 0);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to prepare statement to delete context");
        return 1;
    }

	rc = sqlite3_bind_blob(res, 1, host_uuid, sizeof(*host_uuid), SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind host_id to delete context data");
        goto skip_delete;
    }

    rc = sqlite3_bind_text(res, 2, context_data->id, -1, SQLITE_STATIC);
    if (unlikely(rc != SQLITE_OK)) {
        error_report("Failed to bind context id for data deletion");
        goto skip_delete;
    }

    rc_stored = execute_insert(res);

    if (rc_stored != SQLITE_DONE)
        error_report("Failed to delete context %s, rc = %d", context_data->id, rc_stored);
#ifdef NETDATA_INTERNAL_CHECKS
     else {
         char host_uuid_str[UUID_STR_LEN];
         uuid_unparse_lower(*host_uuid, host_uuid_str);
         info("%s: Deleted context %s under host %s", __FUNCTION__ , context_data->id, host_uuid_str);
     }
#endif

skip_delete:
    rc = sqlite3_finalize(res);
    if (rc != SQLITE_OK)
        error_report("Failed to finalize statement where deleting a context, rc = %d", rc);

    return (rc_stored != SQLITE_DONE);
}

int sql_context_cache_stats(int op)
{
    int count, dummy;
    sqlite3_db_status(db_context_meta, op, &count, &dummy, 0);
    return count;
}

//
// TESTING FUNCTIONS
//

static void dict_ctx_get_context_list_cb(VERSIONED_CONTEXT_DATA *context_data, void *data)
{
    (void)data;
    info("   Context id = %s "
         "version = %"PRIu64" "
         "title = %s "
         "chart_type = %s "
         "units = %s "
         "priority = %"PRIu64" "
         "first time = %"PRIu64" "
         "last time = %"PRIu64" "
         "deleted = %d "
         "family = %s",
         context_data->id,
         context_data->version,
         context_data->title,
         context_data->chart_type,
         context_data->units,
         context_data->priority,
         context_data->first_time_t,
         context_data->last_time_t,
         context_data->deleted,
         context_data->family);
}

int ctx_unittest(void)
{
    uuid_t host_uuid;
    uuid_generate(host_uuid);

    int rc = sql_init_context_database(1);

    if (rc != SQLITE_OK)
        return 1;

    // Store a context
    VERSIONED_CONTEXT_DATA context_data;

    context_data.id = strdupz("cpu.cpu");
    context_data.title = strdupz("TestContextTitle");
    context_data.units= strdupz("TestContextUnits");
    context_data.chart_type = strdupz("TestContextChartType");
    context_data.family = strdupz("TestContextFamily");
    context_data.priority = 50000;
    context_data.deleted = 0;
    context_data.first_time_t = 1657781000;
    context_data.last_time_t  = 1657781100;
    context_data.version  = now_realtime_usec();

    if (likely(!ctx_store_context(&host_uuid, &context_data)))
        info("Entry %s inserted", context_data.id);
    else
        info("Entry %s not inserted", context_data.id);

    if (likely(!ctx_store_context(&host_uuid, &context_data)))
        info("Entry %s inserted", context_data.id);
    else
        info("Entry %s not inserted", context_data.id);

    // This will change end time
    context_data.first_time_t = 1657781000;
    context_data.last_time_t  = 1657782001;
    if (likely(!ctx_update_context(&host_uuid, &context_data)))
        info("Entry %s updated", context_data.id);
    else
        info("Entry %s not updated", context_data.id);
    info("List context start after insert");
    ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
    info("List context end after insert");

    // This will change start time
    context_data.first_time_t = 1657782000;
    context_data.last_time_t  = 1657782001;
    if (likely(!ctx_update_context(&host_uuid, &context_data)))
        info("Entry %s updated", context_data.id);
    else
        info("Entry %s not updated", context_data.id);

    // This will list one entry
    info("List context start after insert");
    ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
    info("List context end after insert");

    info("List context start after insert");
    ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
    info("List context end after insert");

    // This will delete the entry
    if (likely(!ctx_delete_context(&host_uuid, &context_data)))
        info("Entry %s deleted", context_data.id);
    else
        info("Entry %s not deleted", context_data.id);

    freez((void *)context_data.id);
    freez((void *)context_data.title);
    freez((void *)context_data.chart_type);
    freez((void *)context_data.family);

    // The list should be empty
    info("List context start after delete");
    ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
    info("List context end after delete");

    sql_close_context_database();

    return 0;
}