Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-01-30 14:12:43 0x3f5c INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 17 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 51119 srv_active, 0 srv_shutdown, 1826211 srv_idle srv_master_thread log flush and writes: 1877330 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 2592343 OS WAIT ARRAY INFO: signal count 217149 RW-shared spins 89560, rounds 2407142, OS waits 65152 RW-excl spins 30286, rounds 123789, OS waits 904 RW-sx spins 808, rounds 12614, OS waits 286 Spin rounds per wait: 26.88 RW-shared, 4.09 RW-excl, 15.61 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 527660 Purge done for trx's n:o < 527658 undo n:o < 0 state: running History list length 6 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 283322623013224, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283322623009056, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283322623004888, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283322623000720, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: native aio handle (insert buffer thread) I/O thread 1 state: native aio handle (log thread) I/O thread 2 state: native aio handle (read thread) I/O thread 3 state: native aio handle (read thread) I/O thread 4 state: native aio handle (read thread) I/O thread 5 state: native aio handle (read thread) I/O thread 6 state: native aio handle (write thread) I/O thread 7 state: native aio handle (write thread) I/O thread 8 state: native aio handle (write thread) I/O thread 9 state: native aio handle (write thread) Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] , ibuf aio reads:, log i/o's:, sync i/o's: Pending flushes (fsync) log: 0; buffer pool: 0 3405862 OS file reads, 1821854 OS file writes, 678694 OS fsyncs 0.71 reads/s, 16384 avg bytes/read, 3.29 writes/s, 2.12 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 0, seg size 2, 1 merges merged operations: insert 0, delete mark 1, delete 0 discarded operations: insert 0, delete mark 0, delete 0 Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 3.94 hash searches/s, 7.41 non-hash searches/s --- LOG --- Log sequence number 1206880329 Log flushed up to 1206880329 Pages flushed up to 1206879042 Last checkpoint at 1206878999 0 pending log flushes, 0 pending chkp writes 415083 log i/o's done, 1.12 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 388120 Buffer pool size 1003 Free buffers 738 Database pages 257 Old database pages 0 Modified db pages 3 Percent of dirty pages(LRU & free pages): 0.301 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 12479, not young 72418 0.00 youngs/s, 0.00 non-youngs/s Pages read 3405826, created 40050, written 1310251 0.71 reads/s, 0.06 creates/s, 1.82 writes/s Buffer pool hit rate 975 / 1000, young-making rate 0 / 1000 not 0 / 1000 Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 257, unzip_LRU len: 0 I/O sum[117]:cur[1], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=7696, Main thread ID=280, state: sleeping Number of rows inserted 68428, updated 112711, deleted 59461, read 25763272 0.00 inserts/s, 0.41 updates/s, 0.00 deletes/s, 3.76 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 114233 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================