Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-05-31 13:35:59 0x1834 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 57 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 2144 srv_active, 0 srv_shutdown, 184397 srv_idle srv_master_thread log flush and writes: 186541 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 12421 OS WAIT ARRAY INFO: signal count 13380 RW-shared spins 43535, rounds 510670, OS waits 9136 RW-excl spins 7780, rounds 68080, OS waits 1711 RW-sx spins 79, rounds 1520, OS waits 41 Spin rounds per wait: 11.73 RW-shared, 8.75 RW-excl, 19.24 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 660297 Purge done for trx's n:o < 660297 undo n:o < 0 state: running but idle History list length 2 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 283608288945280, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288941112, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288936944, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288911936, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288899432, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288895264, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288928608, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288924440, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288907768, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288903600, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288932776, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288891096, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288886928, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288995296, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288920272, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283608288916104, 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 1831406 OS file reads, 61733 OS file writes, 27784 OS fsyncs 10.49 reads/s, 16384 avg bytes/read, 4.28 writes/s, 1.98 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 294, seg size 296, 15001 merges merged operations: insert 22896, delete mark 4199, delete 2535 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 2 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) 427.83 hash searches/s, 62.12 non-hash searches/s --- LOG --- Log sequence number 6337520247 Log flushed up to 6337520227 Pages flushed up to 6337517165 Last checkpoint at 6337514347 0 pending log flushes, 0 pending chkp writes 13577 log i/o's done, 1.35 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 2852056 Buffer pool size 1003 Free buffers 736 Database pages 258 Old database pages 0 Modified db pages 21 Percent of dirty pages(LRU & free pages): 2.111 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 450935, not young 101786392 3.16 youngs/s, 582.94 non-youngs/s Pages read 1830263, created 446, written 44455 10.49 reads/s, 0.09 creates/s, 2.70 writes/s Buffer pool hit rate 992 / 1000, young-making rate 2 / 1000 not 390 / 1000 Pages read ahead 3.77/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 258, unzip_LRU len: 0 I/O sum[242]:cur[7], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=6308, Main thread ID=8420, state: sleeping Number of rows inserted 10639, updated 1571, deleted 533, read 304528517 0.00 inserts/s, 0.84 updates/s, 0.00 deletes/s, 753.64 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 58244 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================