Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2025-04-03 06:24:23 0x7f0bf44f3700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 4 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 1476 srv_active, 0 srv_shutdown, 21474 srv_idle srv_master_thread log flush and writes: 22944 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 5778 OS WAIT ARRAY INFO: signal count 4904 RW-shared spins 0, rounds 4782, OS waits 2390 RW-excl spins 0, rounds 309, OS waits 11 RW-sx spins 1, rounds 30, OS waits 1 Spin rounds per wait: 4782.00 RW-shared, 309.00 RW-excl, 30.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 40609 Purge done for trx's n:o < 40609 undo n:o < 0 state: running but idle History list length 2 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421164314522104, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421164314530616, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421164314517848, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421164314513592, 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: 0 860 OS file reads, 17131 OS file writes, 12161 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 69257, node heap has 1 buffer(s) Hash table size 69257, node heap has 9 buffer(s) Hash table size 69257, node heap has 2 buffer(s) Hash table size 69257, node heap has 25 buffer(s) Hash table size 69257, node heap has 1 buffer(s) Hash table size 69257, node heap has 3 buffer(s) Hash table size 69257, node heap has 25 buffer(s) Hash table size 69257, node heap has 0 buffer(s) 0.00 hash searches/s, 0.25 non-hash searches/s --- LOG --- Log sequence number 11029484 Log flushed up to 11029484 Pages flushed up to 11029484 Last checkpoint at 11029475 0 pending log flushes, 0 pending chkp writes 7807 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 285212672 Dictionary memory allocated 136272 Buffer pool size 16024 Free buffers 15112 Database pages 846 Old database pages 328 Modified db pages 0 Percent of dirty pages(LRU & free pages): 0.000 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 701, created 145, written 7879 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: 846, 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=905, Main thread ID=139688568416000, state: sleeping Number of rows inserted 21, updated 1562, deleted 0, read 1843262 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.25 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 2737 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================