Supports transactions, row-level locking, and foreign keys
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2025-09-04 01:51:06 0x7f5c200b3700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 13 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 9 srv_active, 0 srv_shutdown, 308 srv_idle srv_master_thread log flush and writes: 0 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 16 OS WAIT ARRAY INFO: signal count 16 RW-shared spins 0, rounds 0, OS waits 0 RW-excl spins 0, rounds 0, OS waits 0 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 9771 Purge done for trx's n:o < 9770 undo n:o < 0 state: running but idle History list length 59 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421508688042600, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421508688041728, not started 0 lock struct(s), heap size 1136, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: waiting for completed aio requests (insert buffer thread) I/O thread 1 state: waiting for completed aio requests (log thread) I/O thread 2 state: waiting for completed aio requests (read thread) I/O thread 3 state: waiting for completed aio requests (read thread) I/O thread 4 state: waiting for completed aio requests (read thread) I/O thread 5 state: waiting for completed aio requests (read thread) I/O thread 6 state: waiting for completed aio requests (write thread) I/O thread 7 state: waiting for completed aio requests (write thread) I/O thread 8 state: waiting for completed aio requests (write thread) I/O thread 9 state: waiting for completed aio requests (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 1190 OS file reads, 318 OS file writes, 112 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 34679, node heap has 1 buffer(s) Hash table size 34679, node heap has 2 buffer(s) Hash table size 34679, node heap has 0 buffer(s) Hash table size 34679, node heap has 0 buffer(s) Hash table size 34679, node heap has 1 buffer(s) Hash table size 34679, node heap has 0 buffer(s) Hash table size 34679, node heap has 2 buffer(s) Hash table size 34679, node heap has 4 buffer(s) 159.83 hash searches/s, 37.38 non-hash searches/s --- LOG --- Log sequence number 50954406 Log buffer assigned up to 50954406 Log buffer completed up to 50954406 Log written up to 50954406 Log flushed up to 50954406 Added dirty pages up to 50954406 Pages flushed up to 50954406 Last checkpoint at 50954406 59 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 137363456 Dictionary memory allocated 466864 Buffer pool size 8192 Free buffers 6955 Database pages 1227 Old database pages 432 Modified db pages 0 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 106, not young 332 0.00 youngs/s, 0.00 non-youngs/s Pages read 1085, created 148, written 204 0.00 reads/s, 0.00 creates/s, 0.00 writes/s Buffer pool hit rate 1000 / 1000, young-making rate 2 / 1000 not 0 / 1000 Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 1227, unzip_LRU len: 0 I/O sum[0]: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=369, Main thread ID=140033202796288 , state=sleeping Number of rows inserted 94, updated 326, deleted 0, read 99045 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 425.43 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================