Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Reserva de búfers | Estado del InnoDB ]
===================================== 2024-09-20 00:16:29 0x7f81b80e7700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 50 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 156 srv_active, 0 srv_shutdown, 728 srv_idle srv_master_thread log flush and writes: 884 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 532 OS WAIT ARRAY INFO: signal count 515 RW-shared spins 0, rounds 532, OS waits 266 RW-excl spins 0, rounds 0, OS waits 0 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 532.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 37756 Purge done for trx's n:o < 37756 undo n:o < 0 state: running but idle History list length 12 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421669867155960, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421669867151704, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421669867147448, 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: 0 836 OS file reads, 1899 OS file writes, 1296 OS fsyncs 0.30 reads/s, 16384 avg bytes/read, 1.54 writes/s, 1.34 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 0 buffer(s) Hash table size 69257, node heap has 8 buffer(s) Hash table size 69257, node heap has 0 buffer(s) Hash table size 69257, node heap has 25 buffer(s) Hash table size 69257, node heap has 0 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) 0.58 hash searches/s, 0.96 non-hash searches/s --- LOG --- Log sequence number 9363030 Log flushed up to 9363030 Pages flushed up to 9363030 Last checkpoint at 9363021 0 pending log flushes, 0 pending chkp writes 855 log i/o's done, 0.86 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 285212672 Dictionary memory allocated 128256 Buffer pool size 16024 Free buffers 15155 Database pages 808 Old database pages 318 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 677, created 131, written 901 0.26 reads/s, 0.00 creates/s, 0.52 writes/s Buffer pool hit rate 986 / 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: 808, 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=906, Main thread ID=140194393036544, state: sleeping Number of rows inserted 1, updated 163, deleted 0, read 85823 0.00 inserts/s, 0.18 updates/s, 0.00 deletes/s, 130.60 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 0 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================