Supports transactions, row-level locking, foreign keys and encryption for tables
[ 変数 | バッファプール | InnoDB ステータス ]
===================================== 2025-07-08 10:48:12 0x7fe0a03c3700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 37 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 4446 srv_active, 0 srv_shutdown, 34253 srv_idle srv_master_thread log flush and writes: 38693 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 15917 OS WAIT ARRAY INFO: signal count 12646 RW-shared spins 0, rounds 12676, OS waits 6333 RW-excl spins 0, rounds 1203, OS waits 39 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 12676.00 RW-shared, 1203.00 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 48033 Purge done for trx's n:o < 48033 undo n:o < 0 state: running but idle History list length 18 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 422077736747512, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 422077736743256, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 422077736739000, 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: 0 863 OS file reads, 51679 OS file writes, 34427 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.81 writes/s, 0.73 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) 0.16 hash searches/s, 0.35 non-hash searches/s --- LOG --- Log sequence number 16395314 Log flushed up to 16395314 Pages flushed up to 16395314 Last checkpoint at 16395305 0 pending log flushes, 0 pending chkp writes 22308 log i/o's done, 0.49 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 285212672 Dictionary memory allocated 149632 Buffer pool size 16024 Free buffers 15072 Database pages 886 Old database pages 330 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 704, created 182, written 25340 0.00 reads/s, 0.00 creates/s, 0.24 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: 886, 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=901, Main thread ID=140601987163904, state: sleeping Number of rows inserted 33, updated 5232, deleted 0, read 2234696 0.00 inserts/s, 0.08 updates/s, 0.00 deletes/s, 0.14 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 5605 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================