netdata/database/rrdset.c at master · feiyunwill/netdata · GitHub

History

1981 lines (1626 loc) · 77.7 KB

Raw

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

// SPDX-License-Identifier: GPL-3.0-or-later

#define NETDATA_RRD_INTERNALS

#include "rrd.h"

#include <sched.h>

void __rrdset_check_rdlock(RRDSET *st, const char *file, const char *function, const unsigned long line) {

debug(D_RRD_CALLS, "Checking read lock on chart '%s'", st->id);

int ret = netdata_rwlock_trywrlock(&st->rrdset_rwlock);

if(ret == 0)

fatal("RRDSET '%s' should be read-locked, but it is not, at function %s() at line %lu of file '%s'", st->id, function, line, file);

}

void __rrdset_check_wrlock(RRDSET *st, const char *file, const char *function, const unsigned long line) {

debug(D_RRD_CALLS, "Checking write lock on chart '%s'", st->id);

int ret = netdata_rwlock_tryrdlock(&st->rrdset_rwlock);

if(ret == 0)

fatal("RRDSET '%s' should be write-locked, but it is not, at function %s() at line %lu of file '%s'", st->id, function, line, file);

}

// ----------------------------------------------------------------------------

// RRDSET index

int rrdset_compare(void* a, void* b) {

if(((RRDSET *)a)->hash < ((RRDSET *)b)->hash) return -1;

else if(((RRDSET *)a)->hash > ((RRDSET *)b)->hash) return 1;

else return strcmp(((RRDSET *)a)->id, ((RRDSET *)b)->id);

}

static RRDSET *rrdset_index_find(RRDHOST *host, const char *id, uint32_t hash) {

RRDSET tmp;

strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);

tmp.hash = (hash)?hash:simple_hash(tmp.id);

return (RRDSET *)avl_search_lock(&(host->rrdset_root_index), (avl_t *) &tmp);

}

// ----------------------------------------------------------------------------

// RRDSET name index

#define rrdset_from_avlname(avlname_ptr) ((RRDSET *)((avlname_ptr) - offsetof(RRDSET, avlname)))

int rrdset_compare_name(void* a, void* b) {

RRDSET *A = rrdset_from_avlname(a);

RRDSET *B = rrdset_from_avlname(b);

// fprintf(stderr, "COMPARING: %s with %s\n", A->name, B->name);

if(A->hash_name < B->hash_name) return -1;

else if(A->hash_name > B->hash_name) return 1;

else return strcmp(A->name, B->name);

}

RRDSET *rrdset_index_add_name(RRDHOST *host, RRDSET *st) {

void *result;

// fprintf(stderr, "ADDING: %s (name: %s)\n", st->id, st->name);

result = avl_insert_lock(&host->rrdset_root_index_name, (avl_t *) (&st->avlname));

if(result) return rrdset_from_avlname(result);

return NULL;

}

RRDSET *rrdset_index_del_name(RRDHOST *host, RRDSET *st) {

void *result;

// fprintf(stderr, "DELETING: %s (name: %s)\n", st->id, st->name);

result = (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index_name), (avl_t *)(&st->avlname));

if(result) return rrdset_from_avlname(result);

return NULL;

}

// ----------------------------------------------------------------------------

// RRDSET - find charts

static inline RRDSET *rrdset_index_find_name(RRDHOST *host, const char *name, uint32_t hash) {

void *result = NULL;

RRDSET tmp;

tmp.name = name;

tmp.hash_name = (hash)?hash:simple_hash(tmp.name);

// fprintf(stderr, "SEARCHING: %s\n", name);

result = avl_search_lock(&host->rrdset_root_index_name, (avl_t *) (&(tmp.avlname)));

if(result) {

RRDSET *st = rrdset_from_avlname(result);

if(strcmp(st->magic, RRDSET_MAGIC) != 0)

error("Search for RRDSET %s returned an invalid RRDSET %s (name %s)", name, st->id, st->name);

// fprintf(stderr, "FOUND: %s\n", name);

return rrdset_from_avlname(result);

}

// fprintf(stderr, "NOT FOUND: %s\n", name);

return NULL;

}

inline RRDSET *rrdset_find(RRDHOST *host, const char *id) {

debug(D_RRD_CALLS, "rrdset_find() for chart '%s' in host '%s'", id, host->hostname);

RRDSET *st = rrdset_index_find(host, id, 0);

return(st);

}

inline RRDSET *rrdset_find_bytype(RRDHOST *host, const char *type, const char *id) {

debug(D_RRD_CALLS, "rrdset_find_bytype() for chart '%s.%s' in host '%s'", type, id, host->hostname);

char buf[RRD_ID_LENGTH_MAX + 1];

strncpyz(buf, type, RRD_ID_LENGTH_MAX - 1);

strcat(buf, ".");

int len = (int) strlen(buf);

strncpyz(&buf[len], id, (size_t) (RRD_ID_LENGTH_MAX - len));

return(rrdset_find(host, buf));

}

inline RRDSET *rrdset_find_byname(RRDHOST *host, const char *name) {

debug(D_RRD_CALLS, "rrdset_find_byname() for chart '%s' in host '%s'", name, host->hostname);

RRDSET *st = rrdset_index_find_name(host, name, 0);

return(st);

}

// ----------------------------------------------------------------------------

// RRDSET - rename charts

char *rrdset_strncpyz_name(char *to, const char *from, size_t length) {

char c, *p = to;

while (length-- && (c = *from++)) {

if(c != '.' && !isalnum(c))

c = '_';

*p++ = c;

}

*p = '\0';

return to;

}

int rrdset_set_name(RRDSET *st, const char *name) {

if(unlikely(st->name && !strcmp(st->name, name)))

return 1;

RRDHOST *host = st->rrdhost;

debug(D_RRD_CALLS, "rrdset_set_name() old: '%s', new: '%s'", st->name?st->name:"", name);

char b[CONFIG_MAX_VALUE + 1];

char n[RRD_ID_LENGTH_MAX + 1];

snprintfz(n, RRD_ID_LENGTH_MAX, "%s.%s", st->type, name);

rrdset_strncpyz_name(b, n, CONFIG_MAX_VALUE);

if(rrdset_index_find_name(host, b, 0)) {

info("RRDSET: chart name '%s' on host '%s' already exists.", b, host->hostname);

return 0;

}

if(st->name) {

rrdset_index_del_name(host, st);

st->name = config_set_default(st->config_section, "name", b);

st->hash_name = simple_hash(st->name);

rrdsetvar_rename_all(st);

}

else {

st->name = config_get(st->config_section, "name", b);

st->hash_name = simple_hash(st->name);

}

rrdset_wrlock(st);

RRDDIM *rd;

rrddim_foreach_write(rd, st)

rrddimvar_rename_all(rd);

rrdset_unlock(st);

if(unlikely(rrdset_index_add_name(host, st) != st))

error("RRDSET: INTERNAL ERROR: attempted to index duplicate chart name '%s'", st->name);

rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

return 2;

}

inline void rrdset_is_obsolete(RRDSET *st) {

if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_ARCHIVED))) {

info("Cannot obsolete already archived chart %s", st->name);

return;

}

if(unlikely(!(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) {

rrdset_flag_set(st, RRDSET_FLAG_OBSOLETE);

st->rrdhost->obsolete_charts_count++;

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

// the chart will not get more updates (data collection)

// so, we have to push its definition now

rrdset_push_chart_definition_now(st);

}

inline void rrdset_isnot_obsolete(RRDSET *st) {

if(unlikely((rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) {

rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE);

st->rrdhost->obsolete_charts_count--;

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

// the chart will be pushed upstream automatically

// due to data collection

}

inline void rrdset_update_heterogeneous_flag(RRDSET *st) {

RRDHOST *host = st->rrdhost;

(void)host;

RRDDIM *rd;

rrdset_flag_clear(st, RRDSET_FLAG_HOMOGENEOUS_CHECK);

RRD_ALGORITHM algorithm = st->dimensions->algorithm;

collected_number multiplier = ABS(st->dimensions->multiplier);

collected_number divisor = ABS(st->dimensions->divisor);

rrddim_foreach_read(rd, st) {

if(algorithm != rd->algorithm || multiplier != ABS(rd->multiplier) || divisor != ABS(rd->divisor)) {

if(!rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) {

#ifdef NETDATA_INTERNAL_CHECKS

info("Dimension '%s' added on chart '%s' of host '%s' is not homogeneous to other dimensions already present (algorithm is '%s' vs '%s', multiplier is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ", divisor is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ").",

rd->name,

st->name,

host->hostname,

rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(algorithm),

rd->multiplier, multiplier,

rd->divisor, divisor

);

#endif

rrdset_flag_set(st, RRDSET_FLAG_HETEROGENEOUS);

}

return;

}

rrdset_flag_clear(st, RRDSET_FLAG_HETEROGENEOUS);

}

// ----------------------------------------------------------------------------

// RRDSET - reset a chart

void rrdset_reset(RRDSET *st) {

debug(D_RRD_CALLS, "rrdset_reset() %s", st->name);

st->last_collected_time.tv_sec = 0;

st->last_collected_time.tv_usec = 0;

st->last_updated.tv_sec = 0;

st->last_updated.tv_usec = 0;

st->current_entry = 0;

st->counter = 0;

st->counter_done = 0;

st->rrddim_page_alignment = 0;

RRDDIM *rd;

rrddim_foreach_read(rd, st) {

rd->last_collected_time.tv_sec = 0;

rd->last_collected_time.tv_usec = 0;

rd->collections_counter = 0;

// memset(rd->values, 0, rd->entries * sizeof(storage_number));

#ifdef ENABLE_DBENGINE

if (RRD_MEMORY_MODE_DBENGINE == st->rrd_memory_mode && !rrddim_flag_check(rd, RRDDIM_FLAG_ARCHIVED)) {

rrdeng_store_metric_flush_current_page(rd);

}

#endif

}

// ----------------------------------------------------------------------------

// RRDSET - helpers for rrdset_create()

inline long align_entries_to_pagesize(RRD_MEMORY_MODE mode, long entries) {

if(unlikely(entries < 5)) entries = 5;

if(unlikely(entries > RRD_HISTORY_ENTRIES_MAX)) entries = RRD_HISTORY_ENTRIES_MAX;

if(unlikely(mode == RRD_MEMORY_MODE_NONE || mode == RRD_MEMORY_MODE_ALLOC))

return entries;

long page = (size_t)sysconf(_SC_PAGESIZE);

long size = sizeof(RRDDIM) + entries * sizeof(storage_number);

if(unlikely(size % page)) {

size -= (size % page);

size += page;

long n = (size - sizeof(RRDDIM)) / sizeof(storage_number);

return n;

}

return entries;

}

static inline void last_collected_time_align(RRDSET *st) {

st->last_collected_time.tv_sec -= st->last_collected_time.tv_sec % st->update_every;

if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST)))

st->last_collected_time.tv_usec = 0;

else

st->last_collected_time.tv_usec = 500000;

}

static inline void last_updated_time_align(RRDSET *st) {

st->last_updated.tv_sec -= st->last_updated.tv_sec % st->update_every;

st->last_updated.tv_usec = 0;

}

// ----------------------------------------------------------------------------

// RRDSET - free a chart

void rrdset_free(RRDSET *st) {

if(unlikely(!st)) return;

RRDHOST *host = st->rrdhost;

rrdhost_check_wrlock(host); // make sure we have a write lock on the host

rrdset_wrlock(st); // lock this RRDSET

// info("Removing chart '%s' ('%s')", st->id, st->name);

// ------------------------------------------------------------------------

// remove it from the indexes

if(unlikely(rrdset_index_del(host, st) != st))

error("RRDSET: INTERNAL ERROR: attempt to remove from index chart '%s', removed a different chart.", st->id);

rrdset_index_del_name(host, st);

// ------------------------------------------------------------------------

// free its children structures

freez(st->exporting_flags);

while(st->variables) rrdsetvar_free(st->variables);

// while(st->alarms) rrdsetcalc_unlink(st->alarms);

/* We must free all connected alarms here in case this has been an ephemeral chart whose alarm was

* created by a template. This leads to an effective memory leak, which cannot be detected since the

* alarms will still be connected to the host, and freed during shutdown. */

while(st->alarms) rrdcalc_unlink_and_free(st->rrdhost, st->alarms);

while(st->dimensions) rrddim_free(st, st->dimensions);

rrdfamily_free(host, st->rrdfamily);

debug(D_RRD_CALLS, "RRDSET: Cleaning up remaining chart variables for host '%s', chart '%s'", host->hostname, st->id);

rrdvar_free_remaining_variables(host, &st->rrdvar_root_index);

// ------------------------------------------------------------------------

// remove it from the configuration

appconfig_section_destroy_non_loaded(&netdata_config, st->config_section);

// ------------------------------------------------------------------------

// unlink it from the host

if(st == host->rrdset_root) {

host->rrdset_root = st->next;

}

else {

// find the previous one

RRDSET *s;

for(s = host->rrdset_root; s && s->next != st ; s = s->next) ;

// bypass it

if(s) s->next = st->next;

else error("Request to free RRDSET '%s': cannot find it under host '%s'", st->id, host->hostname);

}

rrdset_unlock(st);

// ------------------------------------------------------------------------

// free it

netdata_rwlock_destroy(&st->rrdset_rwlock);

netdata_rwlock_destroy(&st->state->labels.labels_rwlock);

// free directly allocated members

freez(st->config_section);

freez(st->plugin_name);

freez(st->module_name);

freez(st->state->old_title);

freez(st->state->old_context);

free_label_list(st->state->labels.head);

freez(st->state);

freez(st->chart_uuid);

switch(st->rrd_memory_mode) {

case RRD_MEMORY_MODE_SAVE:

case RRD_MEMORY_MODE_MAP:

case RRD_MEMORY_MODE_RAM:

debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);

munmap(st, st->memsize);

break;

case RRD_MEMORY_MODE_ALLOC:

case RRD_MEMORY_MODE_NONE:

case RRD_MEMORY_MODE_DBENGINE:

freez(st);

break;

}

void rrdset_save(RRDSET *st) {

rrdset_check_rdlock(st);

// info("Saving chart '%s' ('%s')", st->id, st->name);

if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {

debug(D_RRD_STATS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);

memory_file_save(st->cache_filename, st, st->memsize);

}

RRDDIM *rd;

rrddim_foreach_read(rd, st) {

if(likely(rd->rrd_memory_mode == RRD_MEMORY_MODE_SAVE)) {

debug(D_RRD_STATS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);

memory_file_save(rd->cache_filename, rd, rd->memsize);

}

void rrdset_delete_custom(RRDSET *st, int db_rotated) {

RRDDIM *rd;

#ifndef ENABLE_ACLK

UNUSED(db_rotated);

#endif

rrdset_check_rdlock(st);

info("Deleting chart '%s' ('%s') from disk...", st->id, st->name);

if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || st->rrd_memory_mode == RRD_MEMORY_MODE_MAP) {

info("Deleting chart header file '%s'.", st->cache_filename);

if(unlikely(unlink(st->cache_filename) == -1))

error("Cannot delete chart header file '%s'", st->cache_filename);

}

rrddim_foreach_read(rd, st) {

if(likely(rd->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || rd->rrd_memory_mode == RRD_MEMORY_MODE_MAP)) {

info("Deleting dimension file '%s'.", rd->cache_filename);

if(unlikely(unlink(rd->cache_filename) == -1))

error("Cannot delete dimension file '%s'", rd->cache_filename);

}

recursively_delete_dir(st->cache_dir, "left-over chart");

#ifdef ENABLE_ACLK

if ((netdata_cloud_setting) && (db_rotated || RRD_MEMORY_MODE_DBENGINE != st->rrd_memory_mode)) {

aclk_del_collector(st->rrdhost, st->plugin_name, st->module_name);

st->rrdhost->deleted_charts_count++;

}

#endif

}

void rrdset_delete_obsolete_dimensions(RRDSET *st) {

RRDDIM *rd;

rrdset_check_rdlock(st);

info("Deleting dimensions of chart '%s' ('%s') from disk...", st->id, st->name);

rrddim_foreach_read(rd, st) {

if(rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) {

if(likely(rd->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || rd->rrd_memory_mode == RRD_MEMORY_MODE_MAP)) {

info("Deleting dimension file '%s'.", rd->cache_filename);

if(unlikely(unlink(rd->cache_filename) == -1))

error("Cannot delete dimension file '%s'", rd->cache_filename);

}

// ----------------------------------------------------------------------------

// RRDSET - create a chart

static inline RRDSET *rrdset_find_on_create(RRDHOST *host, const char *fullid) {

RRDSET *st = rrdset_find(host, fullid);

if(unlikely(st)) {

rrdset_isnot_obsolete(st);

debug(D_RRD_CALLS, "RRDSET '%s', already exists.", fullid);

return st;

}

return NULL;

}

RRDSET *rrdset_create_custom(

RRDHOST *host

, const char *type

, const char *id

, const char *name

, const char *family

, const char *context

, const char *title

, const char *units

, const char *plugin

, const char *module

, long priority

, int update_every

, RRDSET_TYPE chart_type

, RRD_MEMORY_MODE memory_mode

, long history_entries

) {

if(!type || !type[0]) {

fatal("Cannot create rrd stats without a type: id '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'."

, (id && *id)?id:"<unset>"

, (name && *name)?name:"<unset>"

, (family && *family)?family:"<unset>"

, (context && *context)?context:"<unset>"

, (title && *title)?title:"<unset>"

, (units && *units)?units:"<unset>"

, (plugin && *plugin)?plugin:"<unset>"

, (module && *module)?module:"<unset>"

);

return NULL;

}

if(!id || !id[0]) {

fatal("Cannot create rrd stats without an id: type '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'."

, type

, (name && *name)?name:"<unset>"

, (family && *family)?family:"<unset>"

, (context && *context)?context:"<unset>"

, (title && *title)?title:"<unset>"

, (units && *units)?units:"<unset>"

, (plugin && *plugin)?plugin:"<unset>"

, (module && *module)?module:"<unset>"

);

return NULL;

}

// ------------------------------------------------------------------------

// check if it already exists

char fullid[RRD_ID_LENGTH_MAX + 1];

snprintfz(fullid, RRD_ID_LENGTH_MAX, "%s.%s", type, id);

int changed_from_archived_to_active = 0;

RRDSET *st = rrdset_find_on_create(host, fullid);

if (st) {

int mark_rebuild = 0;

rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

if (rrdset_flag_check(st, RRDSET_FLAG_ARCHIVED)) {

rrdset_flag_clear(st, RRDSET_FLAG_ARCHIVED);

changed_from_archived_to_active = 1;

mark_rebuild |= META_CHART_ACTIVATED;

}

char *old_plugin = NULL, *old_module = NULL, *old_title = NULL, *old_context = NULL,

*old_title_v = NULL, *old_context_v = NULL;

int rc;

if(unlikely(name))

rc = rrdset_set_name(st, name);

else

rc = rrdset_set_name(st, id);

if (rc == 2)

mark_rebuild |= META_CHART_UPDATED;

if (unlikely(st->priority != priority)) {

st->priority = priority;

mark_rebuild |= META_CHART_UPDATED;

}

if (unlikely(st->rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE && st->update_every != update_every)) {

st->update_every = update_every;

mark_rebuild |= META_CHART_UPDATED;

}

if (plugin && st->plugin_name) {

if (unlikely(strcmp(plugin, st->plugin_name))) {

old_plugin = st->plugin_name;

st->plugin_name = strdupz(plugin);

mark_rebuild |= META_PLUGIN_UPDATED;

}

} else {

if (plugin != st->plugin_name) { // one is NULL?

old_plugin = st->plugin_name;

st->plugin_name = plugin ? strdupz(plugin) : NULL;

mark_rebuild |= META_PLUGIN_UPDATED;

}

if (module && st->module_name) {

if (unlikely(strcmp(module, st->module_name))) {

old_module = st->module_name;

st->module_name = strdupz(module);

mark_rebuild |= META_MODULE_UPDATED;

}

} else {

if (module != st->module_name) {

if (st->module_name && *st->module_name) {

old_module = st->module_name;

st->module_name = module ? strdupz(module) : NULL;

mark_rebuild |= META_MODULE_UPDATED;

}

if (unlikely(title && st->state->old_title && strcmp(st->state->old_title, title))) {

char *new_title = strdupz(title);

old_title_v = st->state->old_title;

st->state->old_title = strdupz(title);

json_fix_string(new_title);

old_title = st->title;

st->title = new_title;

mark_rebuild |= META_CHART_UPDATED;

}

RRDSET_TYPE new_chart_type =

rrdset_type_id(config_get(st->config_section, "chart type", rrdset_type_name(chart_type)));

if (st->chart_type != new_chart_type) {

st->chart_type = new_chart_type;

mark_rebuild |= META_CHART_UPDATED;

}

if (unlikely(context && st->state->old_context && strcmp(st->state->old_context, context))) {

char *new_context = strdupz(context);

old_context_v = st->state->old_context;

st->state->old_context = strdupz(context);

json_fix_string(new_context);

old_context = st->context;

st->context = new_context;

st->hash_context = simple_hash(st->context);

mark_rebuild |= META_CHART_UPDATED;

}

if (mark_rebuild) {

#ifdef ENABLE_ACLK

if (netdata_cloud_setting) {

if (mark_rebuild & META_CHART_ACTIVATED) {

aclk_add_collector(host, st->plugin_name, st->module_name);

}

else {

if (mark_rebuild & (META_PLUGIN_UPDATED | META_MODULE_UPDATED)) {

aclk_del_collector(

host, mark_rebuild & META_PLUGIN_UPDATED ? old_plugin : st->plugin_name,

mark_rebuild & META_MODULE_UPDATED ? old_module : st->module_name);

aclk_add_collector(host, st->plugin_name, st->module_name);

}

rrdset_flag_set(st, RRDSET_FLAG_ACLK);

}

#endif

freez(old_plugin);

freez(old_module);

freez(old_title);

freez(old_context);

freez(old_title_v);

freez(old_context_v);

if (mark_rebuild != META_CHART_ACTIVATED) {

info("Collector updated metadata for chart %s", st->id);

sched_yield();

}

if (mark_rebuild & (META_CHART_UPDATED | META_PLUGIN_UPDATED | META_MODULE_UPDATED)) {

debug(D_METADATALOG, "CHART [%s] metadata updated", st->id);

int rc = update_chart_metadata(st->chart_uuid, st, id, name);

if (unlikely(rc))

error_report("Failed to update chart metadata in the database");

}

/* Fall-through during switch from archived to active so that the host lock is taken and health is linked */

if (!changed_from_archived_to_active)

return st;

}

rrdhost_wrlock(host);

st = rrdset_find_on_create(host, fullid);

if(st) {

if (changed_from_archived_to_active) {

rrdset_flag_clear(st, RRDSET_FLAG_ARCHIVED);

rrdsetvar_create(st, "last_collected_t", RRDVAR_TYPE_TIME_T, &st->last_collected_time.tv_sec, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "collected_total_raw", RRDVAR_TYPE_TOTAL, &st->last_collected_total, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "green", RRDVAR_TYPE_CALCULATED, &st->green, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "red", RRDVAR_TYPE_CALCULATED, &st->red, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "update_every", RRDVAR_TYPE_INT, &st->update_every, RRDVAR_OPTION_DEFAULT);

rrdsetcalc_link_matching(st);

rrdcalctemplate_link_matching(st);

}

rrdhost_unlock(host);

rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

return st;

}

char fullfilename[FILENAME_MAX + 1];

// ------------------------------------------------------------------------

// compose the config_section for this chart

char config_section[RRD_ID_LENGTH_MAX + 1];

if(host == localhost)

strcpy(config_section, fullid);

else

snprintfz(config_section, RRD_ID_LENGTH_MAX, "%s/%s", host->machine_guid, fullid);

// ------------------------------------------------------------------------

// get the options from the config, we need to create it

long entries;

if(memory_mode == RRD_MEMORY_MODE_DBENGINE) {

// only sets it the first time

entries = config_get_number(config_section, "history", 5);

} else {

long rentries = config_get_number(config_section, "history", history_entries);

entries = align_entries_to_pagesize(memory_mode, rentries);

if (entries != rentries) entries = config_set_number(config_section, "history", entries);

if (memory_mode == RRD_MEMORY_MODE_NONE && entries != rentries)

entries = config_set_number(config_section, "history", 10);

}

int enabled = config_get_boolean(config_section, "enabled", 1);

if(!enabled) entries = 5;

unsigned long size = sizeof(RRDSET);

char *cache_dir = rrdset_cache_dir(host, fullid, config_section);

time_t now = now_realtime_sec();

// ------------------------------------------------------------------------

// load it or allocate it

debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id);

snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", cache_dir);

if(memory_mode == RRD_MEMORY_MODE_SAVE || memory_mode == RRD_MEMORY_MODE_MAP ||

memory_mode == RRD_MEMORY_MODE_RAM) {

st = (RRDSET *) mymmap(

(memory_mode == RRD_MEMORY_MODE_RAM) ? NULL : fullfilename

, size

, ((memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE)

, 0

);

if(st) {

memset(&st->avl, 0, sizeof(avl_t));

memset(&st->avlname, 0, sizeof(avl_t));

memset(&st->rrdvar_root_index, 0, sizeof(avl_tree_lock));

memset(&st->dimensions_index, 0, sizeof(avl_tree_lock));

memset(&st->rrdset_rwlock, 0, sizeof(netdata_rwlock_t));

st->name = NULL;

st->config_section = NULL;

st->type = NULL;

st->family = NULL;

st->title = NULL;

st->units = NULL;

st->context = NULL;

st->cache_dir = NULL;

st->plugin_name = NULL;

st->module_name = NULL;

st->dimensions = NULL;

st->rrdfamily = NULL;

st->rrdhost = NULL;

st->next = NULL;

st->variables = NULL;

st->alarms = NULL;

st->flags = 0x00000000;

st->exporting_flags = NULL;

if(memory_mode == RRD_MEMORY_MODE_RAM) {

memset(st, 0, size);

}

else {

if(strcmp(st->magic, RRDSET_MAGIC) != 0) {

info("Initializing file %s.", fullfilename);

memset(st, 0, size);

}

else if(strcmp(st->id, fullid) != 0) {

error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);

// munmap(st, size);

// st = NULL;

memset(st, 0, size);

}

else if(st->memsize != size || st->entries != entries) {

error("File %s does not have the desired size. Clearing it.", fullfilename);

memset(st, 0, size);

}

else if(st->update_every != update_every) {

error("File %s does not have the desired update frequency. Clearing it.", fullfilename);

memset(st, 0, size);

}

else if((now - st->last_updated.tv_sec) > update_every * entries) {

info("File %s is too old. Clearing it.", fullfilename);

memset(st, 0, size);

}

else if(st->last_updated.tv_sec > now + update_every) {

error("File %s refers to the future by %zd secs. Resetting it to now.", fullfilename, (ssize_t)(st->last_updated.tv_sec - now));

st->last_updated.tv_sec = now;

}

// make sure the database is aligned

if(st->last_updated.tv_sec) {

st->update_every = update_every;

last_updated_time_align(st);

}

// make sure we have the right memory mode

// even if we cleared the memory

st->rrd_memory_mode = memory_mode;

}

if(unlikely(!st)) {

st = callocz(1, size);

if (memory_mode == RRD_MEMORY_MODE_DBENGINE)

st->rrd_memory_mode = RRD_MEMORY_MODE_DBENGINE;

else

st->rrd_memory_mode = (memory_mode == RRD_MEMORY_MODE_NONE) ? RRD_MEMORY_MODE_NONE : RRD_MEMORY_MODE_ALLOC;

}

st->plugin_name = plugin?strdupz(plugin):NULL;

st->module_name = module?strdupz(module):NULL;

st->config_section = strdupz(config_section);

st->rrdhost = host;

st->memsize = size;

st->entries = entries;

st->update_every = update_every;

if(st->current_entry >= st->entries) st->current_entry = 0;

strcpy(st->cache_filename, fullfilename);

strcpy(st->magic, RRDSET_MAGIC);

strcpy(st->id, fullid);

st->hash = simple_hash(st->id);

st->cache_dir = cache_dir;

st->chart_type = rrdset_type_id(config_get(st->config_section, "chart type", rrdset_type_name(chart_type)));

st->type = config_get(st->config_section, "type", type);

st->state = callocz(1, sizeof(*st->state));

st->family = config_get(st->config_section, "family", family?family:st->type);

json_fix_string(st->family);

st->units = config_get(st->config_section, "units", units?units:"");

json_fix_string(st->units);

st->context = config_get(st->config_section, "context", context?context:st->id);

st->state->old_context = strdupz(st->context);

json_fix_string(st->context);

st->hash_context = simple_hash(st->context);

st->priority = config_get_number(st->config_section, "priority", priority);

if(enabled)

rrdset_flag_set(st, RRDSET_FLAG_ENABLED);

else

rrdset_flag_clear(st, RRDSET_FLAG_ENABLED);

rrdset_flag_clear(st, RRDSET_FLAG_DETAIL);

rrdset_flag_clear(st, RRDSET_FLAG_DEBUG);

rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE);

rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_EXPORTING_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_BACKEND_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_SEND);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_IGNORE);

rrdset_flag_clear(st, RRDSET_FLAG_UPSTREAM_EXPOSED);

rrdset_flag_set(st, RRDSET_FLAG_SYNC_CLOCK);

// if(!strcmp(st->id, "disk_util.dm-0")) {

// st->debug = 1;

// error("enabled debugging for '%s'", st->id);

// }

// else error("not enabled debugging for '%s'", st->id);

st->green = NAN;

st->red = NAN;

st->last_collected_time.tv_sec = 0;

st->last_collected_time.tv_usec = 0;

st->counter_done = 0;

st->rrddim_page_alignment = 0;

st->gap_when_lost_iterations_above = (int) (gap_when_lost_iterations_above + 2);

st->last_accessed_time = 0;

st->upstream_resync_time = 0;

avl_init_lock(&st->dimensions_index, rrddim_compare);

avl_init_lock(&st->rrdvar_root_index, rrdvar_compare);

netdata_rwlock_init(&st->rrdset_rwlock);

netdata_rwlock_init(&st->state->labels.labels_rwlock);

if(name && *name && rrdset_set_name(st, name))

// we did set the name

;

else

// could not use the name, use the id

rrdset_set_name(st, id);

st->title = config_get(st->config_section, "title", title);

st->state->old_title = strdupz(st->title);

json_fix_string(st->title);

st->rrdfamily = rrdfamily_create(host, st->family);

st->next = host->rrdset_root;

host->rrdset_root = st;

if(host->health_enabled) {

rrdsetvar_create(st, "last_collected_t", RRDVAR_TYPE_TIME_T, &st->last_collected_time.tv_sec, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "collected_total_raw", RRDVAR_TYPE_TOTAL, &st->last_collected_total, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "green", RRDVAR_TYPE_CALCULATED, &st->green, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "red", RRDVAR_TYPE_CALCULATED, &st->red, RRDVAR_OPTION_DEFAULT);

rrdsetvar_create(st, "update_every", RRDVAR_TYPE_INT, &st->update_every, RRDVAR_OPTION_DEFAULT);

}

if(unlikely(rrdset_index_add(host, st) != st))

error("RRDSET: INTERNAL ERROR: attempt to index duplicate chart '%s'", st->id);

rrdsetcalc_link_matching(st);

rrdcalctemplate_link_matching(st);

st->chart_uuid = find_chart_uuid(host, type, id, name);

if (unlikely(!st->chart_uuid))

st->chart_uuid = create_chart_uuid(st, id, name);

else

update_chart_metadata(st->chart_uuid, st, id, name);

store_active_chart(st->chart_uuid);

rrdhost_unlock(host);

#ifdef ENABLE_ACLK

if (netdata_cloud_setting)

aclk_add_collector(host, plugin, module);

rrdset_flag_set(st, RRDSET_FLAG_ACLK);

#endif

return(st);

}

// ----------------------------------------------------------------------------

// RRDSET - data collection iteration control

inline void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds) {

if(unlikely(!st->last_collected_time.tv_sec || !microseconds || (rrdset_flag_check_noatomic(st, RRDSET_FLAG_SYNC_CLOCK)))) {

// call the full next_usec() function

rrdset_next_usec(st, microseconds);

return;

}

st->usec_since_last_update = microseconds;

}

inline void rrdset_next_usec(RRDSET *st, usec_t microseconds) {

struct timeval now;

now_realtime_timeval(&now);

#ifdef NETDATA_INTERNAL_CHECKS

char *discard_reason = NULL;

usec_t discarded = microseconds;

#endif

if(unlikely(rrdset_flag_check_noatomic(st, RRDSET_FLAG_SYNC_CLOCK))) {

// the chart needs to be re-synced to current time

rrdset_flag_clear(st, RRDSET_FLAG_SYNC_CLOCK);

// discard the microseconds supplied

microseconds = 0;

#ifdef NETDATA_INTERNAL_CHECKS

if(!discard_reason) discard_reason = "SYNC CLOCK FLAG";

#endif

}

if(unlikely(!st->last_collected_time.tv_sec)) {

// the first entry

microseconds = st->update_every * USEC_PER_SEC;

#ifdef NETDATA_INTERNAL_CHECKS

if(!discard_reason) discard_reason = "FIRST DATA COLLECTION";

#endif

}

else if(unlikely(!microseconds)) {

// no dt given by the plugin

microseconds = dt_usec(&now, &st->last_collected_time);

#ifdef NETDATA_INTERNAL_CHECKS

if(!discard_reason) discard_reason = "NO USEC GIVEN BY COLLECTOR";

#endif

}

else {

// microseconds has the time since the last collection

susec_t since_last_usec = dt_usec_signed(&now, &st->last_collected_time);

View remainder of file in raw view

netdata/database/rrdset.c at master · feiyunwill/netdata · GitHub

Expand file tree

Breadcrumbs

rrdset.c

Latest commit

History

Breadcrumbs

rrdset.c

File metadata and controls