Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-04-19 09:41:44 0x412c INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 29 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 433430 srv_active, 0 srv_shutdown, 5968134 srv_idle srv_master_thread log flush and writes: 6401564 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 19840086 OS WAIT ARRAY INFO: signal count 3967825 RW-shared spins 1398099, rounds 23073982, OS waits 652790 RW-excl spins 1246214, rounds 6334350, OS waits 34645 RW-sx spins 27687, rounds 568103, OS waits 11029 Spin rounds per wait: 16.50 RW-shared, 5.08 RW-excl, 20.52 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 5852050 Purge done for trx's n:o < 5852050 undo n:o < 0 state: running History list length 17 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 283371855425896, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283371855421728, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283371855413392, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283371855417560, 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 63371393 OS file reads, 12244701 OS file writes, 5074333 OS fsyncs 36.00 reads/s, 16384 avg bytes/read, 14.31 writes/s, 7.10 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 35, seg size 37, 79181 merges merged operations: insert 114128, delete mark 41564, delete 7865 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 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 26.79 hash searches/s, 57.52 non-hash searches/s --- LOG --- Log sequence number 33293042118 Log flushed up to 33293042098 Pages flushed up to 33293031799 Last checkpoint at 33293023268 0 pending log flushes, 0 pending chkp writes 2655249 log i/o's done, 4.55 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 1567504 Buffer pool size 1003 Free buffers 737 Database pages 259 Old database pages 0 Modified db pages 16 Percent of dirty pages(LRU & free pages): 1.605 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 3289791, not young 258695047 0.00 youngs/s, 0.00 non-youngs/s Pages read 63370988, created 888001, written 8741015 36.00 reads/s, 0.07 creates/s, 8.69 writes/s Buffer pool hit rate 966 / 1000, young-making rate 0 / 1000 not 0 / 1000 Pages read ahead 3.31/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 259, unzip_LRU len: 0 I/O sum[1229]:cur[16], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=17232, Main thread ID=9312, state: sleeping Number of rows inserted 3476832, updated 1356154, deleted 233370, read 3375462579 0.00 inserts/s, 3.10 updates/s, 0.00 deletes/s, 7300.37 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 4058633 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================