Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-09-22 17:03:32 0x7f58b04696c0 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 30 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 4811 srv_active, 0 srv_shutdown, 703296 srv_idle srv_master_thread log flush and writes: 707974 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 24266 OS WAIT ARRAY INFO: signal count 15759 RW-shared spins 1240, rounds 36727, OS waits 1216 RW-excl spins 44, rounds 1299, OS waits 42 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 29.62 RW-shared, 29.52 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 27856 Purge done for trx's n:o < 27856 undo n:o < 0 state: running but idle History list length 0 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421494086518320, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086514104, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086509888, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086505672, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086501456, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086497240, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086493024, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086488808, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086484592, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086480376, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086476160, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086471944, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421494086467728, 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 8436 OS file reads, 65041 OS file writes, 34356 OS fsyncs 0.33 reads/s, 16384 avg bytes/read, 3.70 writes/s, 1.63 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 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) 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) 7.83 hash searches/s, 13.37 non-hash searches/s --- LOG --- Log sequence number 12415661 Log flushed up to 12415143 Pages flushed up to 12415143 Last checkpoint at 12389239 0 pending log flushes, 0 pending chkp writes 17050 log i/o's done, 1.10 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 75640 Buffer pool size 1002 Free buffers 743 Database pages 256 Old database pages 0 Modified db pages 22 Percent of dirty pages(LRU & free pages): 2.200 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 8402, created 444, written 41654 0.33 reads/s, 0.07 creates/s, 2.37 writes/s Buffer pool hit rate 994 / 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[168]: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=283, Main thread ID=140017921935040, state: sleeping Number of rows inserted 57, updated 9811, deleted 0, read 185665 0.00 inserts/s, 0.90 updates/s, 0.00 deletes/s, 6.47 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 8034 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================