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 15:22:36 0x1168 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 6 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1239 srv_active, 0 srv_shutdown, 572970 srv_idle
srv_master_thread log flush and writes: 574209
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 52915
OS WAIT ARRAY INFO: signal count 2256
RW-shared spins 2273, rounds 54686, OS waits 1641
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 575337
Purge done for trx's n:o < 575337 undo n:o < 0 state: running but idle
History list length 3
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
37398 OS file reads, 31400 OS file writes, 14291 OS fsyncs
0.50 reads/s, 16384 avg bytes/read, 2.00 writes/s, 1.17 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)
3.17 hash searches/s, 7.50 non-hash searches/s
---
LOG
---
Log sequence number 378388023
Log flushed up to   378388023
Pages flushed up to 378388023
Last checkpoint at  378384271
0 pending log flushes, 0 pending chkp writes
9449 log i/o's done, 0.67 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 2155944
Buffer pool size   1003
Free buffers       740
Database pages     256
Old database pages 0
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 589, not young 85708
0.00 youngs/s, 0.00 non-youngs/s
Pages read 36560, created 769, written 20088
0.50 reads/s, 0.00 creates/s, 1.17 writes/s
Buffer pool hit rate 974 / 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[3]:cur[7], 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 5260, deleted 567, read 1693410
0.00 inserts/s, 0.50 updates/s, 0.00 deletes/s, 3.17 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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