Mecanismos de armazenamento

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Variáveis | Pool de buffer | Estado do InnoDB ]

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2026-05-03 15:22:51 0x1168 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 15 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1254 srv_active, 0 srv_shutdown, 572970 srv_idle
srv_master_thread log flush and writes: 574224
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 53115
OS WAIT ARRAY INFO: signal count 2262
RW-shared spins 2275, rounds 54746, OS waits 1643
RW-excl spins 1411, rounds 5529, OS waits 50
RW-sx spins 19, rounds 204, OS waits 4
Spin rounds per wait: 24.06 RW-shared, 3.92 RW-excl, 10.74 RW-sx
------------------------
LATEST FOREIGN KEY ERROR
------------------------
2026-04-27 20:04:57 0x35c Error in foreign key constraint of table `oficina_autocarvalho`.`if`:
Create  table `oficina_autocarvalho`.`if` with foreign key constraint failed. Referenced table `oficina_autocarvalho`.`car_entry_checklists` not found in the data dictionary near ' FOREIGN KEY (`checklist_id`) REFERENCES `car_entry_checklists` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB AUTO_INCREMENT=21 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci'.
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TRANSACTIONS
------------
Trx id counter 575467
Purge done for trx's n:o < 575467 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283065794662760, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283065794654424, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283065794658592, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283065794650256, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
37506 OS file reads, 31726 OS file writes, 14417 OS fsyncs
7.20 reads/s, 16384 avg bytes/read, 21.73 writes/s, 8.40 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 12, seg size 14, 8 merges
merged operations:
 insert 0, delete mark 618, delete 133
discarded operations:
 insert 0, delete mark 0, delete 0
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)
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)
Hash table size 4441, node heap has 1 buffer(s)
17.87 hash searches/s, 43.73 non-hash searches/s
---
LOG
---
Log sequence number 378475196
Log flushed up to   378474632
Pages flushed up to 378473366
Last checkpoint at  378447351
0 pending log flushes, 0 pending chkp writes
9533 log i/o's done, 5.60 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 2155944
Buffer pool size   1003
Free buffers       732
Database pages     264
Old database pages 0
Modified db pages  25
Percent of dirty pages(LRU & free pages): 2.508
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 589, not young 85708
0.00 youngs/s, 0.00 non-youngs/s
Pages read 36668, created 776, written 20316
7.20 reads/s, 0.47 creates/s, 15.20 writes/s
Buffer pool hit rate 969 / 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: 264, unzip_LRU len: 0
I/O sum[326]:cur[20], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=5400, Main thread ID=7152, state: sleeping
Number of rows inserted 539, updated 5325, deleted 567, read 1694144
0.00 inserts/s, 4.33 updates/s, 0.00 deletes/s, 48.93 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 19943
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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