Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2025-03-10 09:02:31 0x7b939f11e6c0 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 39 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 519 srv_active, 0 srv_shutdown, 339448 srv_idle srv_master_thread log flush and writes: 339965 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 4515 OS WAIT ARRAY INFO: signal count 3005 RW-shared spins 1367, rounds 41010, OS waits 1362 RW-excl spins 4, rounds 150, OS waits 5 RW-sx spins 2, rounds 60, OS waits 0 Spin rounds per wait: 30.00 RW-shared, 37.50 RW-excl, 30.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 4363 Purge done for trx's n:o < 4363 undo n:o < 0 state: running but idle History list length 0 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 417348855013640, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 417348855009424, 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 1686 OS file reads, 8520 OS file writes, 4704 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 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 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) 0.05 hash searches/s, 0.15 non-hash searches/s --- LOG --- Log sequence number 3479348 Log flushed up to 3477980 Pages flushed up to 3477980 Last checkpoint at 3477971 0 pending log flushes, 0 pending chkp writes 2919 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 104920 Buffer pool size 1003 Free buffers 743 Database pages 256 Old database pages 0 Modified db pages 60 Percent of dirty pages(LRU & free pages): 6.000 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 1642, created 203, written 5064 0.00 reads/s, 0.00 creates/s, 0.00 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[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=298606, Main thread ID=135873301579456, state: sleeping Number of rows inserted 504, updated 13, deleted 464, read 1102 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.05 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 400 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================