Motores de almacenamiento
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
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Variables
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Reserva de búfers
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Estado del InnoDB
]
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2026-11-03 17:02:22 0x676c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 36 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 13104 srv_active, 0 srv_shutdown, 80729 srv_idle
srv_master_thread log flush and writes: 93833
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 21765
OS WAIT ARRAY INFO: signal count 16215
RW-shared spins 5605, rounds 155047, OS waits 4937
RW-excl spins 1812, rounds 9633, OS waits 69
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 27.66 RW-shared, 5.32 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 962180
Purge done for trx's n:o < 962180 undo n:o < 0 state: running but idle
History list length 7
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283555281154336, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283555281150168, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283555281146000, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
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
126459 OS file reads, 177909 OS file writes, 95997 OS fsyncs
16.28 reads/s, 16384 avg bytes/read, 20.30 writes/s, 9.19 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 29, seg size 31, 2 merges
merged operations:
insert 2, delete mark 0, delete 0
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)
30.33 hash searches/s, 102.66 non-hash searches/s
---
LOG
---
Log sequence number 1177561405
Log flushed up to 1177561385
Pages flushed up to 1177545835
Last checkpoint at 1177542379
0 pending log flushes, 0 pending chkp writes
53125 log i/o's done, 5.97 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 2206024
Buffer pool size 1003
Free buffers 738
Database pages 258
Old database pages 0
Modified db pages 33
Percent of dirty pages(LRU & free pages): 3.310
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1749, not young 805502
0.00 youngs/s, 0.00 non-youngs/s
Pages read 125517, created 1831, written 108018
16.28 reads/s, 0.36 creates/s, 12.86 writes/s
Buffer pool hit rate 957 / 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: 258, unzip_LRU len: 0
I/O sum[1390]:cur[11], 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=5440, Main thread ID=7948, state: sleeping
Number of rows inserted 277, updated 29860, deleted 122, read 3915016
0.00 inserts/s, 4.89 updates/s, 0.00 deletes/s, 330.16 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 208650
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 213.63 reads/s
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END OF INNODB MONITOR OUTPUT
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