Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-07-16 07:27:08 0x31151b000 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 42 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 4812 srv_active, 0 srv_shutdown, 24543 srv_idle srv_master_thread log flush and writes: 29355 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 36337 OS WAIT ARRAY INFO: signal count 14842 RW-shared spins 1855, rounds 55591, OS waits 1758 RW-excl spins 82, rounds 1195, OS waits 9 RW-sx spins 2, rounds 2, OS waits 0 Spin rounds per wait: 29.97 RW-shared, 14.57 RW-excl, 1.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 63119 Purge done for trx's n:o < 63119 undo n:o < 0 state: running but idle History list length 9 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421965236257928, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236253736, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236249544, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236245352, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236241160, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236236968, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236232776, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236228584, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236224392, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236220200, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236216008, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421965236211816, 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 11577 OS file reads, 46838 OS file writes, 29204 OS fsyncs 6.14 reads/s, 16384 avg bytes/read, 17.43 writes/s, 7.95 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 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) 30.19 hash searches/s, 54.31 non-hash searches/s --- LOG --- Log sequence number 40595860 Log flushed up to 40595840 Pages flushed up to 40594081 Last checkpoint at 40593996 0 pending log flushes, 0 pending chkp writes 14847 log i/o's done, 5.36 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 189728 Buffer pool size 1002 Free buffers 741 Database pages 256 Old database pages 0 Modified db pages 6 Percent of dirty pages(LRU & free pages): 0.601 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 11497, created 352, written 26575 0.00 reads/s, 0.00 creates/s, 5.00 writes/s Buffer pool hit rate 1000 / 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: 256, unzip_LRU len: 0 I/O sum[765]:cur[0], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=49381, Main thread ID=13166444544, state: sleeping Number of rows inserted 79, updated 6238, deleted 28, read 109210 0.05 inserts/s, 3.88 updates/s, 0.00 deletes/s, 44.48 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 27079 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.02 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================