Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-10-30 14:09:03 0x307680000 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 27 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 3317 srv_active, 0 srv_shutdown, 14937 srv_idle srv_master_thread log flush and writes: 18254 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 25741 OS WAIT ARRAY INFO: signal count 12755 RW-shared spins 1562, rounds 46702, OS waits 1510 RW-excl spins 103, rounds 2095, OS waits 30 RW-sx spins 10, rounds 300, OS waits 7 Spin rounds per wait: 29.90 RW-shared, 20.34 RW-excl, 30.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 249528 Purge done for trx's n:o < 249528 undo n:o < 0 state: running but idle History list length 3 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 422033430167976, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 422033430163776, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 422033430159576, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 422033430155376, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: waiting for i/o request (insert buffer thread) I/O thread 1 state: waiting for i/o request (log thread) I/O thread 2 state: waiting for i/o request (read thread) I/O thread 3 state: waiting for i/o request (read thread) I/O thread 4 state: waiting for i/o request (read thread) I/O thread 5 state: waiting for i/o request (read thread) I/O thread 6 state: waiting for i/o request (write thread) I/O thread 7 state: waiting for i/o request (write thread) I/O thread 8 state: waiting for i/o request (write thread) I/O thread 9 state: waiting for i/o request (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 16950 OS file reads, 33656 OS file writes, 20612 OS fsyncs 0.56 reads/s, 16384 avg bytes/read, 2.67 writes/s, 1.56 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 11, seg size 13, 0 merges merged operations: insert 0, delete mark 0, 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 2 buffer(s) 9.96 hash searches/s, 28.37 non-hash searches/s --- LOG --- Log sequence number 79601886 Log flushed up to 79601866 Pages flushed up to 79598226 Last checkpoint at 79592927 0 pending log flushes, 0 pending chkp writes 11124 log i/o's done, 1.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 335104 Buffer pool size 1002 Free buffers 733 Database pages 260 Old database pages 0 Modified db pages 7 Percent of dirty pages(LRU & free pages): 0.704 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 0, not young 0 0.00 youngs/s, 0.00 non-youngs/s Pages read 16811, created 384, written 18722 0.56 reads/s, 0.00 creates/s, 1.44 writes/s Buffer pool hit rate 992 / 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: 260, unzip_LRU len: 0 I/O sum[78]:cur[20], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=2040, Main thread ID=12999188480, state: sleeping Number of rows inserted 195, updated 4585, deleted 85, read 2191222 0.00 inserts/s, 0.41 updates/s, 0.00 deletes/s, 11.41 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 17274 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================