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7c673cae | 1 | // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. |
11fdf7f2 TL |
2 | // This source code is licensed under both the GPLv2 (found in the |
3 | // COPYING file in the root directory) and Apache 2.0 License | |
4 | // (found in the LICENSE.Apache file in the root directory). | |
7c673cae FG |
5 | |
6 | package org.rocksdb; | |
7 | ||
494da23a TL |
8 | /** |
9 | * The logical mapping of tickers defined in rocksdb::Tickers. | |
10 | * | |
11 | * Java byte value mappings don't align 1:1 to the c++ values. c++ rocksdb::Tickers enumeration type | |
12 | * is uint32_t and java org.rocksdb.TickerType is byte, this causes mapping issues when | |
13 | * rocksdb::Tickers value is greater then 127 (0x7F) for jbyte jni interface as range greater is not | |
14 | * available. Without breaking interface in minor versions, value mappings for | |
15 | * org.rocksdb.TickerType leverage full byte range [-128 (-0x80), (0x7F)]. Newer tickers added | |
16 | * should descend into negative values until TICKER_ENUM_MAX reaches -128 (-0x80). | |
17 | */ | |
7c673cae | 18 | public enum TickerType { |
11fdf7f2 TL |
19 | |
20 | /** | |
21 | * total block cache misses | |
22 | * | |
23 | * REQUIRES: BLOCK_CACHE_MISS == BLOCK_CACHE_INDEX_MISS + | |
24 | * BLOCK_CACHE_FILTER_MISS + | |
25 | * BLOCK_CACHE_DATA_MISS; | |
26 | */ | |
27 | BLOCK_CACHE_MISS((byte) 0x0), | |
28 | ||
29 | /** | |
30 | * total block cache hit | |
31 | * | |
32 | * REQUIRES: BLOCK_CACHE_HIT == BLOCK_CACHE_INDEX_HIT + | |
33 | * BLOCK_CACHE_FILTER_HIT + | |
34 | * BLOCK_CACHE_DATA_HIT; | |
35 | */ | |
36 | BLOCK_CACHE_HIT((byte) 0x1), | |
37 | ||
38 | BLOCK_CACHE_ADD((byte) 0x2), | |
39 | ||
40 | /** | |
41 | * # of failures when adding blocks to block cache. | |
42 | */ | |
43 | BLOCK_CACHE_ADD_FAILURES((byte) 0x3), | |
44 | ||
45 | /** | |
46 | * # of times cache miss when accessing index block from block cache. | |
47 | */ | |
48 | BLOCK_CACHE_INDEX_MISS((byte) 0x4), | |
49 | ||
50 | /** | |
51 | * # of times cache hit when accessing index block from block cache. | |
52 | */ | |
53 | BLOCK_CACHE_INDEX_HIT((byte) 0x5), | |
54 | ||
55 | /** | |
56 | * # of index blocks added to block cache. | |
57 | */ | |
58 | BLOCK_CACHE_INDEX_ADD((byte) 0x6), | |
59 | ||
60 | /** | |
61 | * # of bytes of index blocks inserted into cache | |
62 | */ | |
63 | BLOCK_CACHE_INDEX_BYTES_INSERT((byte) 0x7), | |
64 | ||
65 | /** | |
66 | * # of bytes of index block erased from cache | |
67 | */ | |
68 | BLOCK_CACHE_INDEX_BYTES_EVICT((byte) 0x8), | |
69 | ||
70 | /** | |
71 | * # of times cache miss when accessing filter block from block cache. | |
72 | */ | |
73 | BLOCK_CACHE_FILTER_MISS((byte) 0x9), | |
74 | ||
75 | /** | |
76 | * # of times cache hit when accessing filter block from block cache. | |
77 | */ | |
78 | BLOCK_CACHE_FILTER_HIT((byte) 0xA), | |
79 | ||
80 | /** | |
81 | * # of filter blocks added to block cache. | |
82 | */ | |
83 | BLOCK_CACHE_FILTER_ADD((byte) 0xB), | |
84 | ||
85 | /** | |
86 | * # of bytes of bloom filter blocks inserted into cache | |
87 | */ | |
88 | BLOCK_CACHE_FILTER_BYTES_INSERT((byte) 0xC), | |
89 | ||
90 | /** | |
91 | * # of bytes of bloom filter block erased from cache | |
92 | */ | |
93 | BLOCK_CACHE_FILTER_BYTES_EVICT((byte) 0xD), | |
94 | ||
95 | /** | |
96 | * # of times cache miss when accessing data block from block cache. | |
97 | */ | |
98 | BLOCK_CACHE_DATA_MISS((byte) 0xE), | |
99 | ||
100 | /** | |
101 | * # of times cache hit when accessing data block from block cache. | |
102 | */ | |
103 | BLOCK_CACHE_DATA_HIT((byte) 0xF), | |
104 | ||
105 | /** | |
106 | * # of data blocks added to block cache. | |
107 | */ | |
108 | BLOCK_CACHE_DATA_ADD((byte) 0x10), | |
109 | ||
110 | /** | |
111 | * # of bytes of data blocks inserted into cache | |
112 | */ | |
113 | BLOCK_CACHE_DATA_BYTES_INSERT((byte) 0x11), | |
114 | ||
115 | /** | |
116 | * # of bytes read from cache. | |
117 | */ | |
118 | BLOCK_CACHE_BYTES_READ((byte) 0x12), | |
119 | ||
120 | /** | |
121 | * # of bytes written into cache. | |
122 | */ | |
123 | BLOCK_CACHE_BYTES_WRITE((byte) 0x13), | |
124 | ||
125 | /** | |
126 | * # of times bloom filter has avoided file reads. | |
127 | */ | |
128 | BLOOM_FILTER_USEFUL((byte) 0x14), | |
129 | ||
130 | /** | |
131 | * # persistent cache hit | |
132 | */ | |
133 | PERSISTENT_CACHE_HIT((byte) 0x15), | |
134 | ||
135 | /** | |
136 | * # persistent cache miss | |
137 | */ | |
138 | PERSISTENT_CACHE_MISS((byte) 0x16), | |
139 | ||
140 | /** | |
141 | * # total simulation block cache hits | |
142 | */ | |
143 | SIM_BLOCK_CACHE_HIT((byte) 0x17), | |
144 | ||
145 | /** | |
146 | * # total simulation block cache misses | |
147 | */ | |
148 | SIM_BLOCK_CACHE_MISS((byte) 0x18), | |
149 | ||
150 | /** | |
151 | * # of memtable hits. | |
152 | */ | |
153 | MEMTABLE_HIT((byte) 0x19), | |
154 | ||
155 | /** | |
156 | * # of memtable misses. | |
157 | */ | |
158 | MEMTABLE_MISS((byte) 0x1A), | |
159 | ||
160 | /** | |
161 | * # of Get() queries served by L0 | |
162 | */ | |
163 | GET_HIT_L0((byte) 0x1B), | |
164 | ||
165 | /** | |
166 | * # of Get() queries served by L1 | |
167 | */ | |
168 | GET_HIT_L1((byte) 0x1C), | |
169 | ||
170 | /** | |
171 | * # of Get() queries served by L2 and up | |
172 | */ | |
173 | GET_HIT_L2_AND_UP((byte) 0x1D), | |
174 | ||
175 | /** | |
176 | * COMPACTION_KEY_DROP_* count the reasons for key drop during compaction | |
177 | * There are 4 reasons currently. | |
178 | */ | |
179 | ||
180 | /** | |
181 | * key was written with a newer value. | |
182 | */ | |
183 | COMPACTION_KEY_DROP_NEWER_ENTRY((byte) 0x1E), | |
184 | ||
185 | /** | |
186 | * Also includes keys dropped for range del. | |
187 | * The key is obsolete. | |
188 | */ | |
189 | COMPACTION_KEY_DROP_OBSOLETE((byte) 0x1F), | |
190 | ||
191 | /** | |
192 | * key was covered by a range tombstone. | |
193 | */ | |
194 | COMPACTION_KEY_DROP_RANGE_DEL((byte) 0x20), | |
195 | ||
196 | /** | |
197 | * User compaction function has dropped the key. | |
198 | */ | |
199 | COMPACTION_KEY_DROP_USER((byte) 0x21), | |
200 | ||
201 | /** | |
202 | * all keys in range were deleted. | |
203 | */ | |
204 | COMPACTION_RANGE_DEL_DROP_OBSOLETE((byte) 0x22), | |
205 | ||
206 | /** | |
207 | * Number of keys written to the database via the Put and Write call's. | |
208 | */ | |
209 | NUMBER_KEYS_WRITTEN((byte) 0x23), | |
210 | ||
211 | /** | |
212 | * Number of Keys read. | |
213 | */ | |
214 | NUMBER_KEYS_READ((byte) 0x24), | |
215 | ||
216 | /** | |
217 | * Number keys updated, if inplace update is enabled | |
218 | */ | |
219 | NUMBER_KEYS_UPDATED((byte) 0x25), | |
220 | ||
221 | /** | |
222 | * The number of uncompressed bytes issued by DB::Put(), DB::Delete(),\ | |
223 | * DB::Merge(), and DB::Write(). | |
224 | */ | |
225 | BYTES_WRITTEN((byte) 0x26), | |
226 | ||
227 | /** | |
228 | * The number of uncompressed bytes read from DB::Get(). It could be | |
229 | * either from memtables, cache, or table files. | |
230 | * | |
231 | * For the number of logical bytes read from DB::MultiGet(), | |
232 | * please use {@link #NUMBER_MULTIGET_BYTES_READ}. | |
233 | */ | |
234 | BYTES_READ((byte) 0x27), | |
235 | ||
236 | /** | |
237 | * The number of calls to seek. | |
238 | */ | |
239 | NUMBER_DB_SEEK((byte) 0x28), | |
240 | ||
241 | /** | |
242 | * The number of calls to next. | |
243 | */ | |
244 | NUMBER_DB_NEXT((byte) 0x29), | |
245 | ||
246 | /** | |
247 | * The number of calls to prev. | |
248 | */ | |
249 | NUMBER_DB_PREV((byte) 0x2A), | |
250 | ||
251 | /** | |
252 | * The number of calls to seek that returned data. | |
253 | */ | |
254 | NUMBER_DB_SEEK_FOUND((byte) 0x2B), | |
255 | ||
256 | /** | |
257 | * The number of calls to next that returned data. | |
258 | */ | |
259 | NUMBER_DB_NEXT_FOUND((byte) 0x2C), | |
260 | ||
261 | /** | |
262 | * The number of calls to prev that returned data. | |
263 | */ | |
264 | NUMBER_DB_PREV_FOUND((byte) 0x2D), | |
265 | ||
266 | /** | |
267 | * The number of uncompressed bytes read from an iterator. | |
268 | * Includes size of key and value. | |
269 | */ | |
270 | ITER_BYTES_READ((byte) 0x2E), | |
271 | ||
272 | NO_FILE_CLOSES((byte) 0x2F), | |
273 | ||
274 | NO_FILE_OPENS((byte) 0x30), | |
275 | ||
276 | NO_FILE_ERRORS((byte) 0x31), | |
277 | ||
278 | /** | |
279 | * Time system had to wait to do LO-L1 compactions. | |
280 | * | |
281 | * @deprecated | |
282 | */ | |
283 | @Deprecated | |
284 | STALL_L0_SLOWDOWN_MICROS((byte) 0x32), | |
285 | ||
286 | /** | |
287 | * Time system had to wait to move memtable to L1. | |
288 | * | |
289 | * @deprecated | |
290 | */ | |
291 | @Deprecated | |
292 | STALL_MEMTABLE_COMPACTION_MICROS((byte) 0x33), | |
293 | ||
294 | /** | |
295 | * write throttle because of too many files in L0. | |
296 | * | |
297 | * @deprecated | |
298 | */ | |
299 | @Deprecated | |
300 | STALL_L0_NUM_FILES_MICROS((byte) 0x34), | |
301 | ||
302 | /** | |
303 | * Writer has to wait for compaction or flush to finish. | |
304 | */ | |
305 | STALL_MICROS((byte) 0x35), | |
306 | ||
307 | /** | |
308 | * The wait time for db mutex. | |
309 | * | |
310 | * Disabled by default. To enable it set stats level to {@link StatsLevel#ALL} | |
311 | */ | |
312 | DB_MUTEX_WAIT_MICROS((byte) 0x36), | |
313 | ||
314 | RATE_LIMIT_DELAY_MILLIS((byte) 0x37), | |
315 | ||
316 | /** | |
494da23a TL |
317 | * Number of iterators created. |
318 | * | |
11fdf7f2 TL |
319 | */ |
320 | NO_ITERATORS((byte) 0x38), | |
321 | ||
322 | /** | |
323 | * Number of MultiGet calls. | |
324 | */ | |
325 | NUMBER_MULTIGET_CALLS((byte) 0x39), | |
326 | ||
327 | /** | |
328 | * Number of MultiGet keys read. | |
329 | */ | |
330 | NUMBER_MULTIGET_KEYS_READ((byte) 0x3A), | |
331 | ||
332 | /** | |
333 | * Number of MultiGet bytes read. | |
334 | */ | |
335 | NUMBER_MULTIGET_BYTES_READ((byte) 0x3B), | |
336 | ||
337 | /** | |
338 | * Number of deletes records that were not required to be | |
339 | * written to storage because key does not exist. | |
340 | */ | |
341 | NUMBER_FILTERED_DELETES((byte) 0x3C), | |
342 | NUMBER_MERGE_FAILURES((byte) 0x3D), | |
343 | ||
344 | /** | |
345 | * Number of times bloom was checked before creating iterator on a | |
346 | * file, and the number of times the check was useful in avoiding | |
347 | * iterator creation (and thus likely IOPs). | |
348 | */ | |
349 | BLOOM_FILTER_PREFIX_CHECKED((byte) 0x3E), | |
350 | BLOOM_FILTER_PREFIX_USEFUL((byte) 0x3F), | |
351 | ||
352 | /** | |
353 | * Number of times we had to reseek inside an iteration to skip | |
354 | * over large number of keys with same userkey. | |
355 | */ | |
356 | NUMBER_OF_RESEEKS_IN_ITERATION((byte) 0x40), | |
357 | ||
358 | /** | |
359 | * Record the number of calls to {@link RocksDB#getUpdatesSince(long)}. Useful to keep track of | |
360 | * transaction log iterator refreshes. | |
361 | */ | |
362 | GET_UPDATES_SINCE_CALLS((byte) 0x41), | |
363 | ||
364 | /** | |
365 | * Miss in the compressed block cache. | |
366 | */ | |
367 | BLOCK_CACHE_COMPRESSED_MISS((byte) 0x42), | |
368 | ||
369 | /** | |
370 | * Hit in the compressed block cache. | |
371 | */ | |
372 | BLOCK_CACHE_COMPRESSED_HIT((byte) 0x43), | |
373 | ||
374 | /** | |
375 | * Number of blocks added to compressed block cache. | |
376 | */ | |
377 | BLOCK_CACHE_COMPRESSED_ADD((byte) 0x44), | |
378 | ||
379 | /** | |
380 | * Number of failures when adding blocks to compressed block cache. | |
381 | */ | |
382 | BLOCK_CACHE_COMPRESSED_ADD_FAILURES((byte) 0x45), | |
383 | ||
384 | /** | |
385 | * Number of times WAL sync is done. | |
386 | */ | |
387 | WAL_FILE_SYNCED((byte) 0x46), | |
388 | ||
389 | /** | |
390 | * Number of bytes written to WAL. | |
391 | */ | |
392 | WAL_FILE_BYTES((byte) 0x47), | |
393 | ||
394 | /** | |
395 | * Writes can be processed by requesting thread or by the thread at the | |
396 | * head of the writers queue. | |
397 | */ | |
398 | WRITE_DONE_BY_SELF((byte) 0x48), | |
399 | ||
400 | /** | |
401 | * Equivalent to writes done for others. | |
402 | */ | |
403 | WRITE_DONE_BY_OTHER((byte) 0x49), | |
404 | ||
405 | /** | |
406 | * Number of writes ending up with timed-out. | |
407 | */ | |
408 | WRITE_TIMEDOUT((byte) 0x4A), | |
409 | ||
410 | /** | |
411 | * Number of Write calls that request WAL. | |
412 | */ | |
413 | WRITE_WITH_WAL((byte) 0x4B), | |
414 | ||
415 | /** | |
416 | * Bytes read during compaction. | |
417 | */ | |
418 | COMPACT_READ_BYTES((byte) 0x4C), | |
419 | ||
420 | /** | |
421 | * Bytes written during compaction. | |
422 | */ | |
423 | COMPACT_WRITE_BYTES((byte) 0x4D), | |
424 | ||
425 | /** | |
426 | * Bytes written during flush. | |
427 | */ | |
428 | FLUSH_WRITE_BYTES((byte) 0x4E), | |
429 | ||
430 | /** | |
431 | * Number of table's properties loaded directly from file, without creating | |
432 | * table reader object. | |
433 | */ | |
434 | NUMBER_DIRECT_LOAD_TABLE_PROPERTIES((byte) 0x4F), | |
435 | NUMBER_SUPERVERSION_ACQUIRES((byte) 0x50), | |
436 | NUMBER_SUPERVERSION_RELEASES((byte) 0x51), | |
437 | NUMBER_SUPERVERSION_CLEANUPS((byte) 0x52), | |
438 | ||
439 | /** | |
440 | * # of compressions/decompressions executed | |
441 | */ | |
442 | NUMBER_BLOCK_COMPRESSED((byte) 0x53), | |
443 | NUMBER_BLOCK_DECOMPRESSED((byte) 0x54), | |
444 | ||
445 | NUMBER_BLOCK_NOT_COMPRESSED((byte) 0x55), | |
446 | MERGE_OPERATION_TOTAL_TIME((byte) 0x56), | |
447 | FILTER_OPERATION_TOTAL_TIME((byte) 0x57), | |
448 | ||
449 | /** | |
450 | * Row cache. | |
451 | */ | |
452 | ROW_CACHE_HIT((byte) 0x58), | |
453 | ROW_CACHE_MISS((byte) 0x59), | |
454 | ||
455 | /** | |
456 | * Read amplification statistics. | |
457 | * | |
458 | * Read amplification can be calculated using this formula | |
459 | * (READ_AMP_TOTAL_READ_BYTES / READ_AMP_ESTIMATE_USEFUL_BYTES) | |
460 | * | |
461 | * REQUIRES: ReadOptions::read_amp_bytes_per_bit to be enabled | |
462 | */ | |
463 | ||
464 | /** | |
465 | * Estimate of total bytes actually used. | |
466 | */ | |
467 | READ_AMP_ESTIMATE_USEFUL_BYTES((byte) 0x5A), | |
468 | ||
469 | /** | |
470 | * Total size of loaded data blocks. | |
471 | */ | |
472 | READ_AMP_TOTAL_READ_BYTES((byte) 0x5B), | |
473 | ||
474 | /** | |
475 | * Number of refill intervals where rate limiter's bytes are fully consumed. | |
476 | */ | |
477 | NUMBER_RATE_LIMITER_DRAINS((byte) 0x5C), | |
478 | ||
479 | /** | |
480 | * Number of internal skipped during iteration | |
481 | */ | |
482 | NUMBER_ITER_SKIP((byte) 0x5D), | |
483 | ||
484 | /** | |
485 | * Number of MultiGet keys found (vs number requested) | |
486 | */ | |
487 | NUMBER_MULTIGET_KEYS_FOUND((byte) 0x5E), | |
488 | ||
494da23a TL |
489 | // -0x01 to fixate the new value that incorrectly changed TICKER_ENUM_MAX |
490 | /** | |
491 | * Number of iterators created. | |
492 | */ | |
493 | NO_ITERATOR_CREATED((byte) -0x01), | |
494 | ||
495 | /** | |
496 | * Number of iterators deleted. | |
497 | */ | |
498 | NO_ITERATOR_DELETED((byte) 0x60), | |
499 | ||
500 | /** | |
501 | * Deletions obsoleted before bottom level due to file gap optimization. | |
502 | */ | |
503 | COMPACTION_OPTIMIZED_DEL_DROP_OBSOLETE((byte) 0x61), | |
504 | ||
505 | /** | |
506 | * If a compaction was cancelled in sfm to prevent ENOSPC | |
507 | */ | |
508 | COMPACTION_CANCELLED((byte) 0x62), | |
509 | ||
510 | /** | |
511 | * # of times bloom FullFilter has not avoided the reads. | |
512 | */ | |
513 | BLOOM_FILTER_FULL_POSITIVE((byte) 0x63), | |
514 | ||
515 | /** | |
516 | * # of times bloom FullFilter has not avoided the reads and data actually | |
517 | * exist. | |
518 | */ | |
519 | BLOOM_FILTER_FULL_TRUE_POSITIVE((byte) 0x64), | |
520 | ||
521 | /** | |
522 | * BlobDB specific stats | |
523 | * # of Put/PutTTL/PutUntil to BlobDB. | |
524 | */ | |
525 | BLOB_DB_NUM_PUT((byte) 0x65), | |
526 | ||
527 | /** | |
528 | * # of Write to BlobDB. | |
529 | */ | |
530 | BLOB_DB_NUM_WRITE((byte) 0x66), | |
531 | ||
532 | /** | |
533 | * # of Get to BlobDB. | |
534 | */ | |
535 | BLOB_DB_NUM_GET((byte) 0x67), | |
536 | ||
537 | /** | |
538 | * # of MultiGet to BlobDB. | |
539 | */ | |
540 | BLOB_DB_NUM_MULTIGET((byte) 0x68), | |
541 | ||
542 | /** | |
543 | * # of Seek/SeekToFirst/SeekToLast/SeekForPrev to BlobDB iterator. | |
544 | */ | |
545 | BLOB_DB_NUM_SEEK((byte) 0x69), | |
546 | ||
547 | /** | |
548 | * # of Next to BlobDB iterator. | |
549 | */ | |
550 | BLOB_DB_NUM_NEXT((byte) 0x6A), | |
551 | ||
552 | /** | |
553 | * # of Prev to BlobDB iterator. | |
554 | */ | |
555 | BLOB_DB_NUM_PREV((byte) 0x6B), | |
556 | ||
557 | /** | |
558 | * # of keys written to BlobDB. | |
559 | */ | |
560 | BLOB_DB_NUM_KEYS_WRITTEN((byte) 0x6C), | |
561 | ||
562 | /** | |
563 | * # of keys read from BlobDB. | |
564 | */ | |
565 | BLOB_DB_NUM_KEYS_READ((byte) 0x6D), | |
566 | ||
567 | /** | |
568 | * # of bytes (key + value) written to BlobDB. | |
569 | */ | |
570 | BLOB_DB_BYTES_WRITTEN((byte) 0x6E), | |
571 | ||
572 | /** | |
573 | * # of bytes (keys + value) read from BlobDB. | |
574 | */ | |
575 | BLOB_DB_BYTES_READ((byte) 0x6F), | |
576 | ||
577 | /** | |
578 | * # of keys written by BlobDB as non-TTL inlined value. | |
579 | */ | |
580 | BLOB_DB_WRITE_INLINED((byte) 0x70), | |
581 | ||
582 | /** | |
583 | * # of keys written by BlobDB as TTL inlined value. | |
584 | */ | |
585 | BLOB_DB_WRITE_INLINED_TTL((byte) 0x71), | |
586 | ||
587 | /** | |
588 | * # of keys written by BlobDB as non-TTL blob value. | |
589 | */ | |
590 | BLOB_DB_WRITE_BLOB((byte) 0x72), | |
591 | ||
592 | /** | |
593 | * # of keys written by BlobDB as TTL blob value. | |
594 | */ | |
595 | BLOB_DB_WRITE_BLOB_TTL((byte) 0x73), | |
596 | ||
597 | /** | |
598 | * # of bytes written to blob file. | |
599 | */ | |
600 | BLOB_DB_BLOB_FILE_BYTES_WRITTEN((byte) 0x74), | |
601 | ||
602 | /** | |
603 | * # of bytes read from blob file. | |
604 | */ | |
605 | BLOB_DB_BLOB_FILE_BYTES_READ((byte) 0x75), | |
606 | ||
607 | /** | |
608 | * # of times a blob files being synced. | |
609 | */ | |
610 | BLOB_DB_BLOB_FILE_SYNCED((byte) 0x76), | |
611 | ||
612 | /** | |
613 | * # of blob index evicted from base DB by BlobDB compaction filter because | |
614 | * of expiration. | |
615 | */ | |
616 | BLOB_DB_BLOB_INDEX_EXPIRED_COUNT((byte) 0x77), | |
617 | ||
618 | /** | |
619 | * Size of blob index evicted from base DB by BlobDB compaction filter | |
620 | * because of expiration. | |
621 | */ | |
622 | BLOB_DB_BLOB_INDEX_EXPIRED_SIZE((byte) 0x78), | |
11fdf7f2 | 623 | |
494da23a TL |
624 | /** |
625 | * # of blob index evicted from base DB by BlobDB compaction filter because | |
626 | * of corresponding file deleted. | |
627 | */ | |
628 | BLOB_DB_BLOB_INDEX_EVICTED_COUNT((byte) 0x79), | |
629 | ||
630 | /** | |
631 | * Size of blob index evicted from base DB by BlobDB compaction filter | |
632 | * because of corresponding file deleted. | |
633 | */ | |
634 | BLOB_DB_BLOB_INDEX_EVICTED_SIZE((byte) 0x7A), | |
635 | ||
636 | /** | |
637 | * # of blob files being garbage collected. | |
638 | */ | |
639 | BLOB_DB_GC_NUM_FILES((byte) 0x7B), | |
640 | ||
641 | /** | |
642 | * # of blob files generated by garbage collection. | |
643 | */ | |
644 | BLOB_DB_GC_NUM_NEW_FILES((byte) 0x7C), | |
645 | ||
646 | /** | |
647 | * # of BlobDB garbage collection failures. | |
648 | */ | |
649 | BLOB_DB_GC_FAILURES((byte) 0x7D), | |
650 | ||
651 | /** | |
652 | * # of keys drop by BlobDB garbage collection because they had been | |
653 | * overwritten. | |
654 | */ | |
655 | BLOB_DB_GC_NUM_KEYS_OVERWRITTEN((byte) 0x7E), | |
656 | ||
657 | /** | |
658 | * # of keys drop by BlobDB garbage collection because of expiration. | |
659 | */ | |
660 | BLOB_DB_GC_NUM_KEYS_EXPIRED((byte) 0x7F), | |
661 | ||
662 | /** | |
663 | * # of keys relocated to new blob file by garbage collection. | |
664 | */ | |
665 | BLOB_DB_GC_NUM_KEYS_RELOCATED((byte) -0x02), | |
666 | ||
667 | /** | |
668 | * # of bytes drop by BlobDB garbage collection because they had been | |
669 | * overwritten. | |
670 | */ | |
671 | BLOB_DB_GC_BYTES_OVERWRITTEN((byte) -0x03), | |
672 | ||
673 | /** | |
674 | * # of bytes drop by BlobDB garbage collection because of expiration. | |
675 | */ | |
676 | BLOB_DB_GC_BYTES_EXPIRED((byte) -0x04), | |
677 | ||
678 | /** | |
679 | * # of bytes relocated to new blob file by garbage collection. | |
680 | */ | |
681 | BLOB_DB_GC_BYTES_RELOCATED((byte) -0x05), | |
682 | ||
683 | /** | |
684 | * # of blob files evicted because of BlobDB is full. | |
685 | */ | |
686 | BLOB_DB_FIFO_NUM_FILES_EVICTED((byte) -0x06), | |
687 | ||
688 | /** | |
689 | * # of keys in the blob files evicted because of BlobDB is full. | |
690 | */ | |
691 | BLOB_DB_FIFO_NUM_KEYS_EVICTED((byte) -0x07), | |
692 | ||
693 | /** | |
694 | * # of bytes in the blob files evicted because of BlobDB is full. | |
695 | */ | |
696 | BLOB_DB_FIFO_BYTES_EVICTED((byte) -0x08), | |
697 | ||
698 | /** | |
699 | * These counters indicate a performance issue in WritePrepared transactions. | |
700 | * We should not seem them ticking them much. | |
701 | * # of times prepare_mutex_ is acquired in the fast path. | |
702 | */ | |
703 | TXN_PREPARE_MUTEX_OVERHEAD((byte) -0x09), | |
704 | ||
705 | /** | |
706 | * # of times old_commit_map_mutex_ is acquired in the fast path. | |
707 | */ | |
708 | TXN_OLD_COMMIT_MAP_MUTEX_OVERHEAD((byte) -0x0A), | |
709 | ||
710 | /** | |
711 | * # of times we checked a batch for duplicate keys. | |
712 | */ | |
713 | TXN_DUPLICATE_KEY_OVERHEAD((byte) -0x0B), | |
714 | ||
715 | /** | |
716 | * # of times snapshot_mutex_ is acquired in the fast path. | |
717 | */ | |
718 | TXN_SNAPSHOT_MUTEX_OVERHEAD((byte) -0x0C), | |
719 | ||
720 | TICKER_ENUM_MAX((byte) 0x5F); | |
11fdf7f2 TL |
721 | |
722 | private final byte value; | |
723 | ||
724 | TickerType(final byte value) { | |
725 | this.value = value; | |
726 | } | |
727 | ||
494da23a TL |
728 | /** |
729 | * @deprecated Exposes internal value of native enum mappings. | |
730 | * This method will be marked package private in the next major release. | |
731 | * | |
732 | * @return the internal representation | |
733 | */ | |
734 | @Deprecated | |
11fdf7f2 TL |
735 | public byte getValue() { |
736 | return value; | |
737 | } | |
7c673cae | 738 | } |