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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2026-06-10 05:03:09 0x4c9c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 3 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 18768 srv_active, 0 srv_shutdown, 805018 srv_idle
srv_master_thread log flush and writes: 823786
----------
SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 116692
OS WAIT ARRAY INFO: signal count 42424
RW-shared spins 15481, rounds 462248, OS waits 15052
RW-excl spins 802, rounds 41170, OS waits 1275
RW-sx spins 6, rounds 44, OS waits 1
Spin rounds per wait: 29.86 RW-shared, 51.33 RW-excl, 7.33 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 376284
Purge done for trx's n:o < 376284 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283064779747760, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779743592, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779739424, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779735256, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283064779731088, 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
105301 OS file reads, 198946 OS file writes, 130859 OS fsyncs
3.67 reads/s, 16384 avg bytes/read, 4.67 writes/s, 4.67 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 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)
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)
19.66 hash searches/s, 23.66 non-hash searches/s
---
LOG
---
Log sequence number 229178799
Log flushed up to 229178129
Pages flushed up to 229147391
Last checkpoint at 229147152
0 pending log flushes, 0 pending chkp writes
69189 log i/o's done, 3.33 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1795368
Buffer pool size 1003
Free buffers 736
Database pages 259
Old database pages 0
Modified db pages 60
Percent of dirty pages(LRU & free pages): 6.024
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1070, not young 137706
0.00 youngs/s, 0.00 non-youngs/s
Pages read 98601, created 1208, written 108961
3.67 reads/s, 0.00 creates/s, 0.67 writes/s
Buffer pool hit rate 976 / 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: 259, unzip_LRU len: 0
I/O sum[565]:cur[2], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=4588, Main thread ID=8424, state: sleeping
Number of rows inserted 275, updated 21219, deleted 174, read 39871521
0.00 inserts/s, 2.67 updates/s, 0.00 deletes/s, 50.32 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 761901
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
