Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-02-03 18:57:21 0x2e84 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 50 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 124536 srv_active, 0 srv_shutdown, 854216 srv_idle srv_master_thread log flush and writes: 978750 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 4328881 OS WAIT ARRAY INFO: signal count 501793 RW-shared spins 173500, rounds 5202467, OS waits 169722 RW-excl spins 947, rounds 28893, OS waits 884 RW-sx spins 81, rounds 2439, OS waits 53 Spin rounds per wait: 29.99 RW-shared, 30.51 RW-excl, 30.11 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 737967 Purge done for trx's n:o < 737965 undo n:o < 0 state: running History list length 2 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 282939159696232, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159692056, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159687880, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159683704, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159679528, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159675352, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159671176, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159667000, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159662824, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282939159658648, 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 184444 OS file reads, 1576922 OS file writes, 1107548 OS fsyncs 1.28 reads/s, 16384 avg bytes/read, 6.58 writes/s, 3.92 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 0, seg size 2, 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 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 11.62 hash searches/s, 26.78 non-hash searches/s --- LOG --- Log sequence number 472649685 Log flushed up to 472649685 Pages flushed up to 472648313 Last checkpoint at 472648270 0 pending log flushes, 0 pending chkp writes 659347 log i/o's done, 2.36 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 80128 Buffer pool size 1003 Free buffers 743 Database pages 257 Old database pages 0 Modified db pages 3 Percent of dirty pages(LRU & free pages): 0.300 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 184408, created 7873, written 754704 1.28 reads/s, 0.04 creates/s, 3.66 writes/s Buffer pool hit rate 984 / 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[246]: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=1304, Main thread ID=3572, state: sleeping Number of rows inserted 0, updated 158956, deleted 0, read 8209437 0.00 inserts/s, 0.82 updates/s, 0.00 deletes/s, 11.78 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 6631 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================