| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #include "plugin_proc.h" |
| 4 | |
| 5 | #define PLUGIN_PROC_MODULE_BTRFS_NAME "/sys/fs/btrfs" |
| 6 | |
| 7 | typedef struct btrfs_disk { |
| 8 | char *name; |
| 9 | uint32_t hash; |
| 10 | int exists; |
| 11 | |
| 12 | char *size_filename; |
| 13 | unsigned long long size; |
| 14 | |
| 15 | struct btrfs_disk *next; |
| 16 | } BTRFS_DISK; |
| 17 | |
| 18 | typedef struct btrfs_device { |
| 19 | int id; |
| 20 | int exists; |
| 21 | |
| 22 | char *error_stats_filename; |
| 23 | RRDSET *st_error_stats; |
| 24 | RRDDIM *rd_write_errs; |
| 25 | RRDDIM *rd_read_errs; |
| 26 | RRDDIM *rd_flush_errs; |
| 27 | RRDDIM *rd_corruption_errs; |
| 28 | RRDDIM *rd_generation_errs; |
| 29 | collected_number write_errs; |
| 30 | collected_number read_errs; |
| 31 | collected_number flush_errs; |
| 32 | collected_number corruption_errs; |
| 33 | collected_number generation_errs; |
| 34 | |
| 35 | struct btrfs_device *next; |
| 36 | } BTRFS_DEVICE; |
| 37 | |
| 38 | typedef struct btrfs_node { |
| 39 | int exists; |
| 40 | int logged_error; |
| 41 | |
| 42 | char *id; |
| 43 | uint32_t hash; |
| 44 | |
| 45 | char *label; |
| 46 | |
| 47 | #define declare_btrfs_allocation_section_field(SECTION, FIELD) \ |
| 48 | char *allocation_ ## SECTION ## _ ## FIELD ## _filename; \ |
| 49 | unsigned long long int allocation_ ## SECTION ## _ ## FIELD; |
| 50 | |
| 51 | #define declare_btrfs_allocation_field(FIELD) \ |
| 52 | char *allocation_ ## FIELD ## _filename; \ |
| 53 | unsigned long long int allocation_ ## FIELD; |
| 54 | |
| 55 | RRDSET *st_allocation_disks; |
| 56 | RRDDIM *rd_allocation_disks_unallocated; |
| 57 | RRDDIM *rd_allocation_disks_data_used; |
| 58 | RRDDIM *rd_allocation_disks_data_free; |
| 59 | RRDDIM *rd_allocation_disks_metadata_used; |
| 60 | RRDDIM *rd_allocation_disks_metadata_free; |
| 61 | RRDDIM *rd_allocation_disks_system_used; |
| 62 | RRDDIM *rd_allocation_disks_system_free; |
| 63 | unsigned long long all_disks_total; |
| 64 | |
| 65 | RRDSET *st_allocation_data; |
| 66 | RRDDIM *rd_allocation_data_free; |
| 67 | RRDDIM *rd_allocation_data_used; |
| 68 | declare_btrfs_allocation_section_field(data, total_bytes) |
| 69 | declare_btrfs_allocation_section_field(data, bytes_used) |
| 70 | declare_btrfs_allocation_section_field(data, disk_total) |
| 71 | declare_btrfs_allocation_section_field(data, disk_used) |
| 72 | |
| 73 | RRDSET *st_allocation_metadata; |
| 74 | RRDDIM *rd_allocation_metadata_free; |
| 75 | RRDDIM *rd_allocation_metadata_used; |
| 76 | RRDDIM *rd_allocation_metadata_reserved; |
| 77 | declare_btrfs_allocation_section_field(metadata, total_bytes) |
| 78 | declare_btrfs_allocation_section_field(metadata, bytes_used) |
| 79 | declare_btrfs_allocation_section_field(metadata, disk_total) |
| 80 | declare_btrfs_allocation_section_field(metadata, disk_used) |
| 81 | //declare_btrfs_allocation_field(global_rsv_reserved) |
| 82 | declare_btrfs_allocation_field(global_rsv_size) |
| 83 | |
| 84 | RRDSET *st_allocation_system; |
| 85 | RRDDIM *rd_allocation_system_free; |
| 86 | RRDDIM *rd_allocation_system_used; |
| 87 | declare_btrfs_allocation_section_field(system, total_bytes) |
| 88 | declare_btrfs_allocation_section_field(system, bytes_used) |
| 89 | declare_btrfs_allocation_section_field(system, disk_total) |
| 90 | declare_btrfs_allocation_section_field(system, disk_used) |
| 91 | |
| 92 | // -------------------------------------------------------------------- |
| 93 | // commit stats |
| 94 | |
| 95 | char *commit_stats_filename; |
| 96 | |
| 97 | RRDSET *st_commits; |
| 98 | RRDDIM *rd_commits; |
| 99 | long long commits_total; |
| 100 | collected_number commits_new; |
| 101 | |
| 102 | RRDSET *st_commits_percentage_time; |
| 103 | RRDDIM *rd_commits_percentage_time; |
| 104 | long long commit_timings_total; |
| 105 | long long commits_percentage_time; |
| 106 | |
| 107 | RRDSET *st_commit_timings; |
| 108 | RRDDIM *rd_commit_timings_last; |
| 109 | RRDDIM *rd_commit_timings_max; |
| 110 | collected_number commit_timings_last; |
| 111 | collected_number commit_timings_max; |
| 112 | |
| 113 | BTRFS_DISK *disks; |
| 114 | |
| 115 | BTRFS_DEVICE *devices; |
| 116 | |
| 117 | struct btrfs_node *next; |
| 118 | } BTRFS_NODE; |
| 119 | |
| 120 | static BTRFS_NODE *nodes = NULL; |
| 121 | |
| 122 | static inline int collect_btrfs_error_stats(BTRFS_DEVICE *device){ |
| 123 | char buffer[120 + 1]; |
| 124 | |
| 125 | int ret = read_txt_file(device->error_stats_filename, buffer, sizeof(buffer)); |
| 126 | if(unlikely(ret)) { |
| 127 | collector_error("BTRFS: failed to read '%s'", device->error_stats_filename); |
| 128 | device->write_errs = 0; |
| 129 | device->read_errs = 0; |
| 130 | device->flush_errs = 0; |
| 131 | device->corruption_errs = 0; |
| 132 | device->generation_errs = 0; |
| 133 | return ret; |
| 134 | } |
| 135 | |
| 136 | char *p = buffer; |
| 137 | while(p){ |
| 138 | char *val = strsep_skip_consecutive_separators(&p, "\n"); |
| 139 | if(unlikely(!val || !*val)) break; |
| 140 | char *key = strsep_skip_consecutive_separators(&val, " "); |
| 141 | |
| 142 | if(!strcmp(key, "write_errs")) device->write_errs = str2ull(val, NULL); |
| 143 | else if(!strcmp(key, "read_errs")) device->read_errs = str2ull(val, NULL); |
| 144 | else if(!strcmp(key, "flush_errs")) device->flush_errs = str2ull(val, NULL); |
| 145 | else if(!strcmp(key, "corruption_errs")) device->corruption_errs = str2ull(val, NULL); |
| 146 | else if(!strcmp(key, "generation_errs")) device->generation_errs = str2ull(val, NULL); |
| 147 | } |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static inline int collect_btrfs_commits_stats(BTRFS_NODE *node, int update_every){ |
| 152 | char buffer[120 + 1]; |
| 153 | |
| 154 | int ret = read_txt_file(node->commit_stats_filename, buffer, sizeof(buffer)); |
| 155 | if(unlikely(ret)) { |
| 156 | collector_error("BTRFS: failed to read '%s'", node->commit_stats_filename); |
| 157 | node->commits_total = 0; |
| 158 | node->commits_new = 0; |
| 159 | node->commit_timings_last = 0; |
| 160 | node->commit_timings_max = 0; |
| 161 | node->commit_timings_total = 0; |
| 162 | node->commits_percentage_time = 0; |
| 163 | |
| 164 | return ret; |
| 165 | } |
| 166 | |
| 167 | char *p = buffer; |
| 168 | while(p){ |
| 169 | char *val = strsep_skip_consecutive_separators(&p, "\n"); |
| 170 | if(unlikely(!val || !*val)) break; |
| 171 | char *key = strsep_skip_consecutive_separators(&val, " "); |
| 172 | |
| 173 | if(!strcmp(key, "commits")){ |
| 174 | long long commits_total_new = str2ull(val, NULL); |
| 175 | if(likely(node->commits_total)){ |
| 176 | if((node->commits_new = commits_total_new - node->commits_total)) |
| 177 | node->commits_total = commits_total_new; |
| 178 | } else node->commits_total = commits_total_new; |
| 179 | } |
| 180 | else if(!strcmp(key, "last_commit_ms")) node->commit_timings_last = str2ull(val, NULL); |
| 181 | else if(!strcmp(key, "max_commit_ms")) node->commit_timings_max = str2ull(val, NULL); |
| 182 | else if(!strcmp(key, "total_commit_ms")) { |
| 183 | long long commit_timings_total_new = str2ull(val, NULL); |
| 184 | if(likely(node->commit_timings_total)){ |
| 185 | long time_delta = commit_timings_total_new - node->commit_timings_total; |
| 186 | if(time_delta){ |
| 187 | node->commits_percentage_time = time_delta * 10 / update_every; |
| 188 | node->commit_timings_total = commit_timings_total_new; |
| 189 | } else node->commits_percentage_time = 0; |
| 190 | |
| 191 | } else node->commit_timings_total = commit_timings_total_new; |
| 192 | } |
| 193 | } |
| 194 | return 0; |
| 195 | } |
| 196 | |
| 197 | static inline void btrfs_free_commits_stats(BTRFS_NODE *node){ |
| 198 | if(node->st_commits){ |
| 199 | rrdset_is_obsolete___safe_from_collector_thread(node->st_commits); |
| 200 | rrdset_is_obsolete___safe_from_collector_thread(node->st_commit_timings); |
| 201 | } |
| 202 | freez(node->commit_stats_filename); |
| 203 | node->commit_stats_filename = NULL; |
| 204 | } |
| 205 | |
| 206 | static inline void btrfs_free_disk(BTRFS_DISK *d) { |
| 207 | freez(d->name); |
| 208 | freez(d->size_filename); |
| 209 | freez(d); |
| 210 | } |
| 211 | |
| 212 | static inline void btrfs_free_device(BTRFS_DEVICE *d) { |
| 213 | if(d->st_error_stats) |
| 214 | rrdset_is_obsolete___safe_from_collector_thread(d->st_error_stats); |
| 215 | freez(d->error_stats_filename); |
| 216 | freez(d); |
| 217 | } |
| 218 | |
| 219 | static inline void btrfs_free_node(BTRFS_NODE *node) { |
| 220 | // collector_info("BTRFS: destroying '%s'", node->id); |
| 221 | |
| 222 | if(node->st_allocation_disks) |
| 223 | rrdset_is_obsolete___safe_from_collector_thread(node->st_allocation_disks); |
| 224 | |
| 225 | if(node->st_allocation_data) |
| 226 | rrdset_is_obsolete___safe_from_collector_thread(node->st_allocation_data); |
| 227 | |
| 228 | if(node->st_allocation_metadata) |
| 229 | rrdset_is_obsolete___safe_from_collector_thread(node->st_allocation_metadata); |
| 230 | |
| 231 | if(node->st_allocation_system) |
| 232 | rrdset_is_obsolete___safe_from_collector_thread(node->st_allocation_system); |
| 233 | |
| 234 | freez(node->allocation_data_bytes_used_filename); |
| 235 | freez(node->allocation_data_total_bytes_filename); |
| 236 | |
| 237 | freez(node->allocation_metadata_bytes_used_filename); |
| 238 | freez(node->allocation_metadata_total_bytes_filename); |
| 239 | |
| 240 | freez(node->allocation_system_bytes_used_filename); |
| 241 | freez(node->allocation_system_total_bytes_filename); |
| 242 | |
| 243 | btrfs_free_commits_stats(node); |
| 244 | |
| 245 | while(node->disks) { |
| 246 | BTRFS_DISK *d = node->disks; |
| 247 | node->disks = node->disks->next; |
| 248 | btrfs_free_disk(d); |
| 249 | } |
| 250 | |
| 251 | while(node->devices) { |
| 252 | BTRFS_DEVICE *d = node->devices; |
| 253 | node->devices = node->devices->next; |
| 254 | btrfs_free_device(d); |
| 255 | } |
| 256 | |
| 257 | freez(node->label); |
| 258 | freez(node->id); |
| 259 | freez(node); |
| 260 | } |
| 261 | |
| 262 | static inline int find_btrfs_disks(BTRFS_NODE *node, const char *path) { |
| 263 | char filename[FILENAME_MAX + 1]; |
| 264 | |
| 265 | node->all_disks_total = 0; |
| 266 | |
| 267 | BTRFS_DISK *d; |
| 268 | for(d = node->disks ; d ; d = d->next) |
| 269 | d->exists = 0; |
| 270 | |
| 271 | DIR *dir = opendir(path); |
| 272 | if (!dir) { |
| 273 | if (!node->logged_error) { |
| 274 | nd_log(NDLS_COLLECTORS, errno == ENOENT ? NDLP_INFO : NDLP_ERR, "BTRFS: Cannot open directory '%s'.", path); |
| 275 | node->logged_error = 1; |
| 276 | } |
| 277 | return 1; |
| 278 | } |
| 279 | node->logged_error = 0; |
| 280 | |
| 281 | struct dirent *de = NULL; |
| 282 | while ((de = readdir(dir))) { |
| 283 | if (de->d_type != DT_LNK |
| 284 | || !strcmp(de->d_name, ".") |
| 285 | || !strcmp(de->d_name, "..") |
| 286 | ) { |
| 287 | // collector_info("BTRFS: ignoring '%s'", de->d_name); |
| 288 | continue; |
| 289 | } |
| 290 | |
| 291 | uint32_t hash = simple_hash(de->d_name); |
| 292 | |
| 293 | // -------------------------------------------------------------------- |
| 294 | // search for it |
| 295 | |
| 296 | for(d = node->disks ; d ; d = d->next) { |
| 297 | if(hash == d->hash && !strcmp(de->d_name, d->name)) |
| 298 | break; |
| 299 | } |
| 300 | |
| 301 | // -------------------------------------------------------------------- |
| 302 | // did we find it? |
| 303 | |
| 304 | if(!d) { |
| 305 | d = callocz(sizeof(BTRFS_DISK), 1); |
| 306 | |
| 307 | d->name = strdupz(de->d_name); |
| 308 | d->hash = simple_hash(d->name); |
| 309 | |
| 310 | snprintfz(filename, FILENAME_MAX, "%s/%s/size", path, de->d_name); |
| 311 | d->size_filename = strdupz(filename); |
| 312 | |
| 313 | // link it |
| 314 | d->next = node->disks; |
| 315 | node->disks = d; |
| 316 | } |
| 317 | |
| 318 | d->exists = 1; |
| 319 | |
| 320 | |
| 321 | // -------------------------------------------------------------------- |
| 322 | // update the values |
| 323 | |
| 324 | if(read_single_number_file(d->size_filename, &d->size) != 0) { |
| 325 | collector_error("BTRFS: failed to read '%s'", d->size_filename); |
| 326 | d->exists = 0; |
| 327 | continue; |
| 328 | } |
| 329 | |
| 330 | // /sys/block/<name>/size is in fixed-size sectors of 512 bytes |
| 331 | // https://github.com/torvalds/linux/blob/v6.2/block/genhd.c#L946-L950 |
| 332 | // https://github.com/torvalds/linux/blob/v6.2/include/linux/types.h#L120-L121 |
| 333 | // (also see #3481, #3483) |
| 334 | node->all_disks_total += d->size * 512; |
| 335 | } |
| 336 | closedir(dir); |
| 337 | |
| 338 | // ------------------------------------------------------------------------ |
| 339 | // cleanup |
| 340 | |
| 341 | BTRFS_DISK *last = NULL; |
| 342 | d = node->disks; |
| 343 | |
| 344 | while(d) { |
| 345 | if(unlikely(!d->exists)) { |
| 346 | if(unlikely(node->disks == d)) { |
| 347 | node->disks = d->next; |
| 348 | btrfs_free_disk(d); |
| 349 | d = node->disks; |
| 350 | last = NULL; |
| 351 | } |
| 352 | else { |
| 353 | last->next = d->next; |
| 354 | btrfs_free_disk(d); |
| 355 | d = last->next; |
| 356 | } |
| 357 | |
| 358 | continue; |
| 359 | } |
| 360 | |
| 361 | last = d; |
| 362 | d = d->next; |
| 363 | } |
| 364 | |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | static inline int find_btrfs_devices(BTRFS_NODE *node, const char *path) { |
| 369 | char filename[FILENAME_MAX + 1]; |
| 370 | |
| 371 | BTRFS_DEVICE *d; |
| 372 | for(d = node->devices ; d ; d = d->next) |
| 373 | d->exists = 0; |
| 374 | |
| 375 | DIR *dir = opendir(path); |
| 376 | if (!dir) { |
| 377 | if (!node->logged_error) { |
| 378 | nd_log(NDLS_COLLECTORS, errno == ENOENT ? NDLP_INFO : NDLP_ERR, "BTRFS: Cannot open directory '%s'.", path); |
| 379 | node->logged_error = 1; |
| 380 | } |
| 381 | return 1; |
| 382 | } |
| 383 | node->logged_error = 0; |
| 384 | |
| 385 | struct dirent *de = NULL; |
| 386 | while ((de = readdir(dir))) { |
| 387 | if (de->d_type != DT_DIR |
| 388 | || !strcmp(de->d_name, ".") |
| 389 | || !strcmp(de->d_name, "..") |
| 390 | ) { |
| 391 | // collector_info("BTRFS: ignoring '%s'", de->d_name); |
| 392 | continue; |
| 393 | } |
| 394 | |
| 395 | // internal_error("BTRFS: device found '%s'", de->d_name); |
| 396 | |
| 397 | // -------------------------------------------------------------------- |
| 398 | // search for it |
| 399 | |
| 400 | for(d = node->devices ; d ; d = d->next) { |
| 401 | if(str2ll(de->d_name, NULL) == d->id){ |
| 402 | // collector_info("BTRFS: existing device id '%d'", d->id); |
| 403 | break; |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | // -------------------------------------------------------------------- |
| 408 | // did we find it? |
| 409 | |
| 410 | if(!d) { |
| 411 | d = callocz(sizeof(BTRFS_DEVICE), 1); |
| 412 | |
| 413 | d->id = str2ll(de->d_name, NULL); |
| 414 | // collector_info("BTRFS: new device with id '%d'", d->id); |
| 415 | |
| 416 | snprintfz(filename, FILENAME_MAX, "%s/%d/error_stats", path, d->id); |
| 417 | d->error_stats_filename = strdupz(filename); |
| 418 | // collector_info("BTRFS: error_stats_filename '%s'", filename); |
| 419 | |
| 420 | // link it |
| 421 | d->next = node->devices; |
| 422 | node->devices = d; |
| 423 | } |
| 424 | |
| 425 | d->exists = 1; |
| 426 | |
| 427 | |
| 428 | // -------------------------------------------------------------------- |
| 429 | // update the values |
| 430 | |
| 431 | if(unlikely(collect_btrfs_error_stats(d))) |
| 432 | d->exists = 0; // 'd' will be garbaged collected in loop below |
| 433 | } |
| 434 | closedir(dir); |
| 435 | |
| 436 | // ------------------------------------------------------------------------ |
| 437 | // cleanup |
| 438 | |
| 439 | BTRFS_DEVICE *last = NULL; |
| 440 | d = node->devices; |
| 441 | |
| 442 | while(d) { |
| 443 | if(unlikely(!d->exists)) { |
| 444 | if(unlikely(node->devices == d)) { |
| 445 | node->devices = d->next; |
| 446 | btrfs_free_device(d); |
| 447 | d = node->devices; |
| 448 | last = NULL; |
| 449 | } |
| 450 | else { |
| 451 | last->next = d->next; |
| 452 | btrfs_free_device(d); |
| 453 | d = last->next; |
| 454 | } |
| 455 | |
| 456 | continue; |
| 457 | } |
| 458 | |
| 459 | last = d; |
| 460 | d = d->next; |
| 461 | } |
| 462 | |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | |
| 467 | static inline int find_all_btrfs_pools(const char *path, int update_every) { |
| 468 | static int logged_error = 0; |
| 469 | char filename[FILENAME_MAX + 1]; |
| 470 | |
| 471 | BTRFS_NODE *node; |
| 472 | for(node = nodes ; node ; node = node->next) |
| 473 | node->exists = 0; |
| 474 | |
| 475 | DIR *dir = opendir(path); |
| 476 | if (!dir) { |
| 477 | if (!logged_error) { |
| 478 | nd_log(NDLS_COLLECTORS, errno == ENOENT ? NDLP_INFO : NDLP_ERR, "BTRFS: Cannot open directory '%s'.", path); |
| 479 | logged_error = 1; |
| 480 | } |
| 481 | return 1; |
| 482 | } |
| 483 | logged_error = 0; |
| 484 | |
| 485 | struct dirent *de = NULL; |
| 486 | while ((de = readdir(dir))) { |
| 487 | if(de->d_type != DT_DIR |
| 488 | || !strcmp(de->d_name, ".") |
| 489 | || !strcmp(de->d_name, "..") |
| 490 | || !strcmp(de->d_name, "features") |
| 491 | ) { |
| 492 | // collector_info("BTRFS: ignoring '%s'", de->d_name); |
| 493 | continue; |
| 494 | } |
| 495 | |
| 496 | uint32_t hash = simple_hash(de->d_name); |
| 497 | |
| 498 | // search for it |
| 499 | for(node = nodes ; node ; node = node->next) { |
| 500 | if(hash == node->hash && !strcmp(de->d_name, node->id)) |
| 501 | break; |
| 502 | } |
| 503 | |
| 504 | // did we find it? |
| 505 | if(node) { |
| 506 | // collector_info("BTRFS: already exists '%s'", de->d_name); |
| 507 | node->exists = 1; |
| 508 | |
| 509 | // update the disk sizes |
| 510 | snprintfz(filename, FILENAME_MAX, "%s/%s/devices", path, de->d_name); |
| 511 | find_btrfs_disks(node, filename); |
| 512 | |
| 513 | // update devices |
| 514 | snprintfz(filename, FILENAME_MAX, "%s/%s/devinfo", path, de->d_name); |
| 515 | find_btrfs_devices(node, filename); |
| 516 | |
| 517 | continue; |
| 518 | } |
| 519 | |
| 520 | // collector_info("BTRFS: adding '%s'", de->d_name); |
| 521 | |
| 522 | // not found, create it |
| 523 | node = callocz(sizeof(BTRFS_NODE), 1); |
| 524 | |
| 525 | node->id = strdupz(de->d_name); |
| 526 | node->hash = simple_hash(node->id); |
| 527 | node->exists = 1; |
| 528 | |
| 529 | { |
| 530 | char label[FILENAME_MAX + 1] = ""; |
| 531 | |
| 532 | snprintfz(filename, FILENAME_MAX, "%s/%s/label", path, de->d_name); |
| 533 | if(read_txt_file(filename, label, sizeof(label)) != 0) { |
| 534 | collector_error("BTRFS: failed to read '%s'", filename); |
| 535 | btrfs_free_node(node); |
| 536 | continue; |
| 537 | } |
| 538 | |
| 539 | char *s = label; |
| 540 | if (s[0]) |
| 541 | s = trim(label); |
| 542 | |
| 543 | if(s && s[0]) |
| 544 | node->label = strdupz(s); |
| 545 | else |
| 546 | node->label = strdupz(node->id); |
| 547 | } |
| 548 | |
| 549 | // -------------------------------------------------------------------- |
| 550 | // macros to simplify our life |
| 551 | |
| 552 | #define init_btrfs_allocation_field(FIELD) {\ |
| 553 | snprintfz(filename, FILENAME_MAX, "%s/%s/allocation/" #FIELD, path, de->d_name); \ |
| 554 | if(read_single_number_file(filename, &node->allocation_ ## FIELD) != 0) {\ |
| 555 | collector_error("BTRFS: failed to read '%s'", filename);\ |
| 556 | btrfs_free_node(node);\ |
| 557 | continue;\ |
| 558 | }\ |
| 559 | if(!node->allocation_ ## FIELD ## _filename)\ |
| 560 | node->allocation_ ## FIELD ## _filename = strdupz(filename);\ |
| 561 | } |
| 562 | |
| 563 | #define init_btrfs_allocation_section_field(SECTION, FIELD) {\ |
| 564 | snprintfz(filename, FILENAME_MAX, "%s/%s/allocation/" #SECTION "/" #FIELD, path, de->d_name); \ |
| 565 | if(read_single_number_file(filename, &node->allocation_ ## SECTION ## _ ## FIELD) != 0) {\ |
| 566 | collector_error("BTRFS: failed to read '%s'", filename);\ |
| 567 | btrfs_free_node(node);\ |
| 568 | continue;\ |
| 569 | }\ |
| 570 | if(!node->allocation_ ## SECTION ## _ ## FIELD ## _filename)\ |
| 571 | node->allocation_ ## SECTION ## _ ## FIELD ## _filename = strdupz(filename);\ |
| 572 | } |
| 573 | |
| 574 | // -------------------------------------------------------------------- |
| 575 | // allocation/data |
| 576 | |
| 577 | init_btrfs_allocation_section_field(data, total_bytes); |
| 578 | init_btrfs_allocation_section_field(data, bytes_used); |
| 579 | init_btrfs_allocation_section_field(data, disk_total); |
| 580 | init_btrfs_allocation_section_field(data, disk_used); |
| 581 | |
| 582 | |
| 583 | // -------------------------------------------------------------------- |
| 584 | // allocation/metadata |
| 585 | |
| 586 | init_btrfs_allocation_section_field(metadata, total_bytes); |
| 587 | init_btrfs_allocation_section_field(metadata, bytes_used); |
| 588 | init_btrfs_allocation_section_field(metadata, disk_total); |
| 589 | init_btrfs_allocation_section_field(metadata, disk_used); |
| 590 | |
| 591 | init_btrfs_allocation_field(global_rsv_size); |
| 592 | // init_btrfs_allocation_field(global_rsv_reserved); |
| 593 | |
| 594 | |
| 595 | // -------------------------------------------------------------------- |
| 596 | // allocation/system |
| 597 | |
| 598 | init_btrfs_allocation_section_field(system, total_bytes); |
| 599 | init_btrfs_allocation_section_field(system, bytes_used); |
| 600 | init_btrfs_allocation_section_field(system, disk_total); |
| 601 | init_btrfs_allocation_section_field(system, disk_used); |
| 602 | |
| 603 | // -------------------------------------------------------------------- |
| 604 | // commit stats |
| 605 | |
| 606 | snprintfz(filename, FILENAME_MAX, "%s/%s/commit_stats", path, de->d_name); |
| 607 | if(!node->commit_stats_filename) node->commit_stats_filename = strdupz(filename); |
| 608 | if(unlikely(collect_btrfs_commits_stats(node, update_every))){ |
| 609 | collector_error("BTRFS: failed to collect commit stats for '%s'", node->id); |
| 610 | btrfs_free_commits_stats(node); |
| 611 | } |
| 612 | |
| 613 | // -------------------------------------------------------------------- |
| 614 | // find all disks related to this node |
| 615 | // and collect their sizes |
| 616 | |
| 617 | snprintfz(filename, FILENAME_MAX, "%s/%s/devices", path, de->d_name); |
| 618 | find_btrfs_disks(node, filename); |
| 619 | |
| 620 | // -------------------------------------------------------------------- |
| 621 | // find all devices related to this node |
| 622 | |
| 623 | snprintfz(filename, FILENAME_MAX, "%s/%s/devinfo", path, de->d_name); |
| 624 | find_btrfs_devices(node, filename); |
| 625 | |
| 626 | // -------------------------------------------------------------------- |
| 627 | // link it |
| 628 | |
| 629 | // collector_info("BTRFS: linking '%s'", node->id); |
| 630 | node->next = nodes; |
| 631 | nodes = node; |
| 632 | } |
| 633 | closedir(dir); |
| 634 | |
| 635 | |
| 636 | // ------------------------------------------------------------------------ |
| 637 | // cleanup |
| 638 | |
| 639 | BTRFS_NODE *last = NULL; |
| 640 | node = nodes; |
| 641 | |
| 642 | while(node) { |
| 643 | if(unlikely(!node->exists)) { |
| 644 | if(unlikely(nodes == node)) { |
| 645 | nodes = node->next; |
| 646 | btrfs_free_node(node); |
| 647 | node = nodes; |
| 648 | last = NULL; |
| 649 | } |
| 650 | else { |
| 651 | last->next = node->next; |
| 652 | btrfs_free_node(node); |
| 653 | node = last->next; |
| 654 | } |
| 655 | |
| 656 | continue; |
| 657 | } |
| 658 | |
| 659 | last = node; |
| 660 | node = node->next; |
| 661 | } |
| 662 | |
| 663 | return 0; |
| 664 | } |
| 665 | |
| 666 | static void add_labels_to_btrfs(BTRFS_NODE *n, RRDSET *st) { |
| 667 | rrdlabels_add(st->rrdlabels, "filesystem_uuid", n->id, RRDLABEL_SRC_AUTO); |
| 668 | rrdlabels_add(st->rrdlabels, "filesystem_label", n->label, RRDLABEL_SRC_AUTO); |
| 669 | } |
| 670 | |
| 671 | int do_sys_fs_btrfs(int update_every, usec_t dt) { |
| 672 | static int initialized = 0 |
| 673 | , do_allocation_disks = CONFIG_BOOLEAN_AUTO |
| 674 | , do_allocation_system = CONFIG_BOOLEAN_AUTO |
| 675 | , do_allocation_data = CONFIG_BOOLEAN_AUTO |
| 676 | , do_allocation_metadata = CONFIG_BOOLEAN_AUTO |
| 677 | , do_commit_stats = CONFIG_BOOLEAN_AUTO |
| 678 | , do_error_stats = CONFIG_BOOLEAN_AUTO; |
| 679 | |
| 680 | static usec_t refresh_delta = 0, refresh_every = 60 * USEC_PER_SEC; |
| 681 | static const char *btrfs_path = NULL; |
| 682 | |
| 683 | (void)dt; |
| 684 | |
| 685 | if(unlikely(!initialized)) { |
| 686 | initialized = 1; |
| 687 | |
| 688 | char filename[FILENAME_MAX + 1]; |
| 689 | snprintfz(filename, FILENAME_MAX, "%s%s", netdata_configured_host_prefix, "/sys/fs/btrfs"); |
| 690 | btrfs_path = inicfg_get(&netdata_config, "plugin:proc:/sys/fs/btrfs", "path to monitor", filename); |
| 691 | |
| 692 | refresh_every = inicfg_get_duration_seconds(&netdata_config, "plugin:proc:/sys/fs/btrfs", "check for btrfs changes every", refresh_every / USEC_PER_SEC) * USEC_PER_SEC; |
| 693 | refresh_delta = refresh_every; |
| 694 | |
| 695 | do_allocation_disks = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "physical disks allocation", do_allocation_disks); |
| 696 | do_allocation_data = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "data allocation", do_allocation_data); |
| 697 | do_allocation_metadata = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "metadata allocation", do_allocation_metadata); |
| 698 | do_allocation_system = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "system allocation", do_allocation_system); |
| 699 | do_commit_stats = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "commit stats", do_commit_stats); |
| 700 | do_error_stats = inicfg_get_boolean_ondemand(&netdata_config, "plugin:proc:/sys/fs/btrfs", "error stats", do_error_stats); |
| 701 | } |
| 702 | |
| 703 | refresh_delta += dt; |
| 704 | if(refresh_delta >= refresh_every) { |
| 705 | refresh_delta = 0; |
| 706 | find_all_btrfs_pools(btrfs_path, update_every); |
| 707 | } |
| 708 | |
| 709 | BTRFS_NODE *node; |
| 710 | for(node = nodes; node ; node = node->next) { |
| 711 | // -------------------------------------------------------------------- |
| 712 | // allocation/system |
| 713 | |
| 714 | #define collect_btrfs_allocation_field(FIELD) \ |
| 715 | read_single_number_file(node->allocation_ ## FIELD ## _filename, &node->allocation_ ## FIELD) |
| 716 | |
| 717 | #define collect_btrfs_allocation_section_field(SECTION, FIELD) \ |
| 718 | read_single_number_file(node->allocation_ ## SECTION ## _ ## FIELD ## _filename, &node->allocation_ ## SECTION ## _ ## FIELD) |
| 719 | |
| 720 | if(do_allocation_disks != CONFIG_BOOLEAN_NO) { |
| 721 | if( collect_btrfs_allocation_section_field(data, disk_total) != 0 |
| 722 | || collect_btrfs_allocation_section_field(data, disk_used) != 0 |
| 723 | || collect_btrfs_allocation_section_field(metadata, disk_total) != 0 |
| 724 | || collect_btrfs_allocation_section_field(metadata, disk_used) != 0 |
| 725 | || collect_btrfs_allocation_section_field(system, disk_total) != 0 |
| 726 | || collect_btrfs_allocation_section_field(system, disk_used) != 0) { |
| 727 | collector_error("BTRFS: failed to collect physical disks allocation for '%s'", node->id); |
| 728 | // make it refresh btrfs at the next iteration |
| 729 | refresh_delta = refresh_every; |
| 730 | continue; |
| 731 | } |
| 732 | } |
| 733 | |
| 734 | if(do_allocation_data != CONFIG_BOOLEAN_NO) { |
| 735 | if (collect_btrfs_allocation_section_field(data, total_bytes) != 0 |
| 736 | || collect_btrfs_allocation_section_field(data, bytes_used) != 0) { |
| 737 | collector_error("BTRFS: failed to collect allocation/data for '%s'", node->id); |
| 738 | // make it refresh btrfs at the next iteration |
| 739 | refresh_delta = refresh_every; |
| 740 | continue; |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | if(do_allocation_metadata != CONFIG_BOOLEAN_NO) { |
| 745 | if (collect_btrfs_allocation_section_field(metadata, total_bytes) != 0 |
| 746 | || collect_btrfs_allocation_section_field(metadata, bytes_used) != 0 |
| 747 | || collect_btrfs_allocation_field(global_rsv_size) != 0 |
| 748 | ) { |
| 749 | collector_error("BTRFS: failed to collect allocation/metadata for '%s'", node->id); |
| 750 | // make it refresh btrfs at the next iteration |
| 751 | refresh_delta = refresh_every; |
| 752 | continue; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | if(do_allocation_system != CONFIG_BOOLEAN_NO) { |
| 757 | if (collect_btrfs_allocation_section_field(system, total_bytes) != 0 |
| 758 | || collect_btrfs_allocation_section_field(system, bytes_used) != 0) { |
| 759 | collector_error("BTRFS: failed to collect allocation/system for '%s'", node->id); |
| 760 | // make it refresh btrfs at the next iteration |
| 761 | refresh_delta = refresh_every; |
| 762 | continue; |
| 763 | } |
| 764 | } |
| 765 | |
| 766 | if(do_commit_stats != CONFIG_BOOLEAN_NO && node->commit_stats_filename) { |
| 767 | if (unlikely(collect_btrfs_commits_stats(node, update_every))) { |
| 768 | collector_error("BTRFS: failed to collect commit stats for '%s'", node->id); |
| 769 | btrfs_free_commits_stats(node); |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | if(do_error_stats != CONFIG_BOOLEAN_NO) { |
| 774 | for(BTRFS_DEVICE *d = node->devices ; d ; d = d->next) { |
| 775 | if(unlikely(collect_btrfs_error_stats(d))){ |
| 776 | collector_error("BTRFS: failed to collect error stats for '%s', devid:'%d'", node->id, d->id); |
| 777 | /* make it refresh btrfs at the next iteration, |
| 778 | * btrfs_free_device(d) will be called in |
| 779 | * find_btrfs_devices() as part of the garbage collection */ |
| 780 | refresh_delta = refresh_every; |
| 781 | } |
| 782 | } |
| 783 | } |
| 784 | |
| 785 | // -------------------------------------------------------------------- |
| 786 | // allocation/disks |
| 787 | |
| 788 | if (do_allocation_disks == CONFIG_BOOLEAN_YES || do_allocation_disks == CONFIG_BOOLEAN_AUTO) { |
| 789 | do_allocation_disks = CONFIG_BOOLEAN_YES; |
| 790 | |
| 791 | if(unlikely(!node->st_allocation_disks)) { |
| 792 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 793 | |
| 794 | snprintfz(id, RRD_ID_LENGTH_MAX, "disk_%s", node->id); |
| 795 | snprintfz(name, RRD_ID_LENGTH_MAX, "disk_%s", node->label); |
| 796 | snprintfz(title, sizeof(title) - 1, "BTRFS Physical Disk Allocation"); |
| 797 | |
| 798 | netdata_fix_chart_id(id); |
| 799 | netdata_fix_chart_name(name); |
| 800 | |
| 801 | node->st_allocation_disks = rrdset_create_localhost( |
| 802 | "btrfs" |
| 803 | , id |
| 804 | , name |
| 805 | , node->label |
| 806 | , "btrfs.disk" |
| 807 | , title |
| 808 | , "MiB" |
| 809 | , PLUGIN_PROC_NAME |
| 810 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 811 | , NETDATA_CHART_PRIO_BTRFS_DISK |
| 812 | , update_every |
| 813 | , RRDSET_TYPE_STACKED |
| 814 | ); |
| 815 | |
| 816 | node->rd_allocation_disks_unallocated = rrddim_add(node->st_allocation_disks, "unallocated", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 817 | node->rd_allocation_disks_data_free = rrddim_add(node->st_allocation_disks, "data_free", "data free", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 818 | node->rd_allocation_disks_data_used = rrddim_add(node->st_allocation_disks, "data_used", "data used", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 819 | node->rd_allocation_disks_metadata_free = rrddim_add(node->st_allocation_disks, "meta_free", "meta free", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 820 | node->rd_allocation_disks_metadata_used = rrddim_add(node->st_allocation_disks, "meta_used", "meta used", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 821 | node->rd_allocation_disks_system_free = rrddim_add(node->st_allocation_disks, "sys_free", "sys free", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 822 | node->rd_allocation_disks_system_used = rrddim_add(node->st_allocation_disks, "sys_used", "sys used", 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 823 | |
| 824 | add_labels_to_btrfs(node, node->st_allocation_disks); |
| 825 | } |
| 826 | |
| 827 | // unsigned long long disk_used = node->allocation_data_disk_used + node->allocation_metadata_disk_used + node->allocation_system_disk_used; |
| 828 | unsigned long long disk_total = node->allocation_data_disk_total + node->allocation_metadata_disk_total + node->allocation_system_disk_total; |
| 829 | unsigned long long disk_unallocated = node->all_disks_total - disk_total; |
| 830 | |
| 831 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_unallocated, disk_unallocated); |
| 832 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_data_used, node->allocation_data_disk_used); |
| 833 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_data_free, node->allocation_data_disk_total - node->allocation_data_disk_used); |
| 834 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_metadata_used, node->allocation_metadata_disk_used); |
| 835 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_metadata_free, node->allocation_metadata_disk_total - node->allocation_metadata_disk_used); |
| 836 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_system_used, node->allocation_system_disk_used); |
| 837 | rrddim_set_by_pointer(node->st_allocation_disks, node->rd_allocation_disks_system_free, node->allocation_system_disk_total - node->allocation_system_disk_used); |
| 838 | rrdset_done(node->st_allocation_disks); |
| 839 | } |
| 840 | |
| 841 | // -------------------------------------------------------------------- |
| 842 | // allocation/data |
| 843 | |
| 844 | if (do_allocation_data == CONFIG_BOOLEAN_YES || do_allocation_data == CONFIG_BOOLEAN_AUTO) { |
| 845 | do_allocation_data = CONFIG_BOOLEAN_YES; |
| 846 | |
| 847 | if(unlikely(!node->st_allocation_data)) { |
| 848 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 849 | |
| 850 | snprintfz(id, RRD_ID_LENGTH_MAX, "data_%s", node->id); |
| 851 | snprintfz(name, RRD_ID_LENGTH_MAX, "data_%s", node->label); |
| 852 | snprintfz(title, sizeof(title) - 1, "BTRFS Data Allocation"); |
| 853 | |
| 854 | netdata_fix_chart_id(id); |
| 855 | netdata_fix_chart_name(name); |
| 856 | |
| 857 | node->st_allocation_data = rrdset_create_localhost( |
| 858 | "btrfs" |
| 859 | , id |
| 860 | , name |
| 861 | , node->label |
| 862 | , "btrfs.data" |
| 863 | , title |
| 864 | , "MiB" |
| 865 | , PLUGIN_PROC_NAME |
| 866 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 867 | , NETDATA_CHART_PRIO_BTRFS_DATA |
| 868 | , update_every |
| 869 | , RRDSET_TYPE_STACKED |
| 870 | ); |
| 871 | |
| 872 | node->rd_allocation_data_free = rrddim_add(node->st_allocation_data, "free", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 873 | node->rd_allocation_data_used = rrddim_add(node->st_allocation_data, "used", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 874 | |
| 875 | add_labels_to_btrfs(node, node->st_allocation_data); |
| 876 | } |
| 877 | |
| 878 | rrddim_set_by_pointer(node->st_allocation_data, node->rd_allocation_data_free, node->allocation_data_total_bytes - node->allocation_data_bytes_used); |
| 879 | rrddim_set_by_pointer(node->st_allocation_data, node->rd_allocation_data_used, node->allocation_data_bytes_used); |
| 880 | rrdset_done(node->st_allocation_data); |
| 881 | } |
| 882 | |
| 883 | // -------------------------------------------------------------------- |
| 884 | // allocation/metadata |
| 885 | |
| 886 | if (do_allocation_metadata == CONFIG_BOOLEAN_YES || do_allocation_metadata == CONFIG_BOOLEAN_AUTO) { |
| 887 | do_allocation_metadata = CONFIG_BOOLEAN_YES; |
| 888 | |
| 889 | if(unlikely(!node->st_allocation_metadata)) { |
| 890 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 891 | |
| 892 | snprintfz(id, RRD_ID_LENGTH_MAX, "metadata_%s", node->id); |
| 893 | snprintfz(name, RRD_ID_LENGTH_MAX, "metadata_%s", node->label); |
| 894 | snprintfz(title, sizeof(title) - 1, "BTRFS Metadata Allocation"); |
| 895 | |
| 896 | netdata_fix_chart_id(id); |
| 897 | netdata_fix_chart_name(name); |
| 898 | |
| 899 | node->st_allocation_metadata = rrdset_create_localhost( |
| 900 | "btrfs" |
| 901 | , id |
| 902 | , name |
| 903 | , node->label |
| 904 | , "btrfs.metadata" |
| 905 | , title |
| 906 | , "MiB" |
| 907 | , PLUGIN_PROC_NAME |
| 908 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 909 | , NETDATA_CHART_PRIO_BTRFS_METADATA |
| 910 | , update_every |
| 911 | , RRDSET_TYPE_STACKED |
| 912 | ); |
| 913 | |
| 914 | node->rd_allocation_metadata_free = rrddim_add(node->st_allocation_metadata, "free", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 915 | node->rd_allocation_metadata_used = rrddim_add(node->st_allocation_metadata, "used", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 916 | node->rd_allocation_metadata_reserved = rrddim_add(node->st_allocation_metadata, "reserved", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 917 | |
| 918 | add_labels_to_btrfs(node, node->st_allocation_metadata); |
| 919 | } |
| 920 | |
| 921 | rrddim_set_by_pointer(node->st_allocation_metadata, node->rd_allocation_metadata_free, node->allocation_metadata_total_bytes - node->allocation_metadata_bytes_used - node->allocation_global_rsv_size); |
| 922 | rrddim_set_by_pointer(node->st_allocation_metadata, node->rd_allocation_metadata_used, node->allocation_metadata_bytes_used); |
| 923 | rrddim_set_by_pointer(node->st_allocation_metadata, node->rd_allocation_metadata_reserved, node->allocation_global_rsv_size); |
| 924 | rrdset_done(node->st_allocation_metadata); |
| 925 | } |
| 926 | |
| 927 | // -------------------------------------------------------------------- |
| 928 | // allocation/system |
| 929 | |
| 930 | if (do_allocation_system == CONFIG_BOOLEAN_YES || do_allocation_system == CONFIG_BOOLEAN_AUTO) { |
| 931 | do_allocation_system = CONFIG_BOOLEAN_YES; |
| 932 | |
| 933 | if(unlikely(!node->st_allocation_system)) { |
| 934 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 935 | |
| 936 | snprintfz(id, RRD_ID_LENGTH_MAX, "system_%s", node->id); |
| 937 | snprintfz(name, RRD_ID_LENGTH_MAX, "system_%s", node->label); |
| 938 | snprintfz(title, sizeof(title) - 1, "BTRFS System Allocation"); |
| 939 | |
| 940 | netdata_fix_chart_id(id); |
| 941 | netdata_fix_chart_name(name); |
| 942 | |
| 943 | node->st_allocation_system = rrdset_create_localhost( |
| 944 | "btrfs" |
| 945 | , id |
| 946 | , name |
| 947 | , node->label |
| 948 | , "btrfs.system" |
| 949 | , title |
| 950 | , "MiB" |
| 951 | , PLUGIN_PROC_NAME |
| 952 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 953 | , NETDATA_CHART_PRIO_BTRFS_SYSTEM |
| 954 | , update_every |
| 955 | , RRDSET_TYPE_STACKED |
| 956 | ); |
| 957 | |
| 958 | node->rd_allocation_system_free = rrddim_add(node->st_allocation_system, "free", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 959 | node->rd_allocation_system_used = rrddim_add(node->st_allocation_system, "used", NULL, 1, 1024 * 1024, RRD_ALGORITHM_ABSOLUTE); |
| 960 | |
| 961 | add_labels_to_btrfs(node, node->st_allocation_system); |
| 962 | } |
| 963 | |
| 964 | rrddim_set_by_pointer(node->st_allocation_system, node->rd_allocation_system_free, node->allocation_system_total_bytes - node->allocation_system_bytes_used); |
| 965 | rrddim_set_by_pointer(node->st_allocation_system, node->rd_allocation_system_used, node->allocation_system_bytes_used); |
| 966 | rrdset_done(node->st_allocation_system); |
| 967 | } |
| 968 | |
| 969 | // -------------------------------------------------------------------- |
| 970 | // commit_stats |
| 971 | |
| 972 | if (do_commit_stats == CONFIG_BOOLEAN_YES || do_commit_stats == CONFIG_BOOLEAN_AUTO) { |
| 973 | do_commit_stats = CONFIG_BOOLEAN_YES; |
| 974 | |
| 975 | if(unlikely(!node->st_commits)) { |
| 976 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 977 | |
| 978 | snprintfz(id, RRD_ID_LENGTH_MAX, "commits_%s", node->id); |
| 979 | snprintfz(name, RRD_ID_LENGTH_MAX, "commits_%s", node->label); |
| 980 | snprintfz(title, sizeof(title) - 1, "BTRFS Commits"); |
| 981 | |
| 982 | netdata_fix_chart_id(id); |
| 983 | netdata_fix_chart_name(name); |
| 984 | |
| 985 | node->st_commits = rrdset_create_localhost( |
| 986 | "btrfs" |
| 987 | , id |
| 988 | , name |
| 989 | , node->label |
| 990 | , "btrfs.commits" |
| 991 | , title |
| 992 | , "commits" |
| 993 | , PLUGIN_PROC_NAME |
| 994 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 995 | , NETDATA_CHART_PRIO_BTRFS_COMMITS |
| 996 | , update_every |
| 997 | , RRDSET_TYPE_LINE |
| 998 | ); |
| 999 | |
| 1000 | node->rd_commits = rrddim_add(node->st_commits, "commits", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1001 | |
| 1002 | add_labels_to_btrfs(node, node->st_commits); |
| 1003 | } |
| 1004 | |
| 1005 | rrddim_set_by_pointer(node->st_commits, node->rd_commits, node->commits_new); |
| 1006 | rrdset_done(node->st_commits); |
| 1007 | |
| 1008 | if(unlikely(!node->st_commits_percentage_time)) { |
| 1009 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 1010 | |
| 1011 | snprintfz(id, RRD_ID_LENGTH_MAX, "commits_perc_time_%s", node->id); |
| 1012 | snprintfz(name, RRD_ID_LENGTH_MAX, "commits_perc_time_%s", node->label); |
| 1013 | snprintfz(title, sizeof(title) - 1, "BTRFS Commits Time Share"); |
| 1014 | |
| 1015 | netdata_fix_chart_id(id); |
| 1016 | netdata_fix_chart_name(name); |
| 1017 | |
| 1018 | node->st_commits_percentage_time = rrdset_create_localhost( |
| 1019 | "btrfs" |
| 1020 | , id |
| 1021 | , name |
| 1022 | , node->label |
| 1023 | , "btrfs.commits_perc_time" |
| 1024 | , title |
| 1025 | , "percentage" |
| 1026 | , PLUGIN_PROC_NAME |
| 1027 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 1028 | , NETDATA_CHART_PRIO_BTRFS_COMMITS_PERC_TIME |
| 1029 | , update_every |
| 1030 | , RRDSET_TYPE_LINE |
| 1031 | ); |
| 1032 | |
| 1033 | node->rd_commits_percentage_time = rrddim_add(node->st_commits_percentage_time, "commits", NULL, 1, 100, RRD_ALGORITHM_ABSOLUTE); |
| 1034 | |
| 1035 | add_labels_to_btrfs(node, node->st_commits_percentage_time); |
| 1036 | } |
| 1037 | |
| 1038 | rrddim_set_by_pointer(node->st_commits_percentage_time, node->rd_commits_percentage_time, node->commits_percentage_time); |
| 1039 | rrdset_done(node->st_commits_percentage_time); |
| 1040 | |
| 1041 | |
| 1042 | if(unlikely(!node->st_commit_timings)) { |
| 1043 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 1044 | |
| 1045 | snprintfz(id, RRD_ID_LENGTH_MAX, "commit_timings_%s", node->id); |
| 1046 | snprintfz(name, RRD_ID_LENGTH_MAX, "commit_timings_%s", node->label); |
| 1047 | snprintfz(title, sizeof(title) - 1, "BTRFS Commit Timings"); |
| 1048 | |
| 1049 | netdata_fix_chart_id(id); |
| 1050 | netdata_fix_chart_name(name); |
| 1051 | |
| 1052 | node->st_commit_timings = rrdset_create_localhost( |
| 1053 | "btrfs" |
| 1054 | , id |
| 1055 | , name |
| 1056 | , node->label |
| 1057 | , "btrfs.commit_timings" |
| 1058 | , title |
| 1059 | , "ms" |
| 1060 | , PLUGIN_PROC_NAME |
| 1061 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 1062 | , NETDATA_CHART_PRIO_BTRFS_COMMIT_TIMINGS |
| 1063 | , update_every |
| 1064 | , RRDSET_TYPE_LINE |
| 1065 | ); |
| 1066 | |
| 1067 | node->rd_commit_timings_last = rrddim_add(node->st_commit_timings, "last", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1068 | node->rd_commit_timings_max = rrddim_add(node->st_commit_timings, "max", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1069 | |
| 1070 | add_labels_to_btrfs(node, node->st_commit_timings); |
| 1071 | } |
| 1072 | |
| 1073 | rrddim_set_by_pointer(node->st_commit_timings, node->rd_commit_timings_last, node->commit_timings_last); |
| 1074 | rrddim_set_by_pointer(node->st_commit_timings, node->rd_commit_timings_max, node->commit_timings_max); |
| 1075 | rrdset_done(node->st_commit_timings); |
| 1076 | } |
| 1077 | |
| 1078 | // -------------------------------------------------------------------- |
| 1079 | // error_stats per device |
| 1080 | |
| 1081 | if (do_error_stats == CONFIG_BOOLEAN_YES || do_error_stats == CONFIG_BOOLEAN_AUTO) { |
| 1082 | do_error_stats = CONFIG_BOOLEAN_YES; |
| 1083 | |
| 1084 | for(BTRFS_DEVICE *d = node->devices ; d ; d = d->next) { |
| 1085 | |
| 1086 | if(unlikely(!d->st_error_stats)) { |
| 1087 | char id[RRD_ID_LENGTH_MAX + 1], name[RRD_ID_LENGTH_MAX + 1], title[200 + 1]; |
| 1088 | |
| 1089 | snprintfz(id, RRD_ID_LENGTH_MAX, "device_errors_dev%d_%s", d->id, node->id); |
| 1090 | snprintfz(name, RRD_ID_LENGTH_MAX, "device_errors_dev%d_%s", d->id, node->label); |
| 1091 | snprintfz(title, sizeof(title) - 1, "BTRFS Device Errors"); |
| 1092 | |
| 1093 | netdata_fix_chart_id(id); |
| 1094 | netdata_fix_chart_name(name); |
| 1095 | |
| 1096 | d->st_error_stats = rrdset_create_localhost( |
| 1097 | "btrfs" |
| 1098 | , id |
| 1099 | , name |
| 1100 | , node->label |
| 1101 | , "btrfs.device_errors" |
| 1102 | , title |
| 1103 | , "errors" |
| 1104 | , PLUGIN_PROC_NAME |
| 1105 | , PLUGIN_PROC_MODULE_BTRFS_NAME |
| 1106 | , NETDATA_CHART_PRIO_BTRFS_ERRORS |
| 1107 | , update_every |
| 1108 | , RRDSET_TYPE_LINE |
| 1109 | ); |
| 1110 | |
| 1111 | char rd_id[RRD_ID_LENGTH_MAX + 1]; |
| 1112 | snprintfz(rd_id, RRD_ID_LENGTH_MAX, "write_errs"); |
| 1113 | d->rd_write_errs = rrddim_add(d->st_error_stats, rd_id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1114 | snprintfz(rd_id, RRD_ID_LENGTH_MAX, "read_errs"); |
| 1115 | d->rd_read_errs = rrddim_add(d->st_error_stats, rd_id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1116 | snprintfz(rd_id, RRD_ID_LENGTH_MAX, "flush_errs"); |
| 1117 | d->rd_flush_errs = rrddim_add(d->st_error_stats, rd_id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1118 | snprintfz(rd_id, RRD_ID_LENGTH_MAX, "corruption_errs"); |
| 1119 | d->rd_corruption_errs = rrddim_add(d->st_error_stats, rd_id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1120 | snprintfz(rd_id, RRD_ID_LENGTH_MAX, "generation_errs"); |
| 1121 | d->rd_generation_errs = rrddim_add(d->st_error_stats, rd_id, NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); |
| 1122 | |
| 1123 | char dev_id[5]; |
| 1124 | snprintfz(dev_id, 4, "%d", d->id); |
| 1125 | rrdlabels_add(d->st_error_stats->rrdlabels, "device_id", dev_id, RRDLABEL_SRC_AUTO); |
| 1126 | add_labels_to_btrfs(node, d->st_error_stats); |
| 1127 | } |
| 1128 | |
| 1129 | rrddim_set_by_pointer(d->st_error_stats, d->rd_write_errs, d->write_errs); |
| 1130 | rrddim_set_by_pointer(d->st_error_stats, d->rd_read_errs, d->read_errs); |
| 1131 | rrddim_set_by_pointer(d->st_error_stats, d->rd_flush_errs, d->flush_errs); |
| 1132 | rrddim_set_by_pointer(d->st_error_stats, d->rd_corruption_errs, d->corruption_errs); |
| 1133 | rrddim_set_by_pointer(d->st_error_stats, d->rd_generation_errs, d->generation_errs); |
| 1134 | |
| 1135 | rrdset_done(d->st_error_stats); |
| 1136 | } |
| 1137 | } |
| 1138 | } |
| 1139 | |
| 1140 | return 0; |
| 1141 | } |
| 1142 |