Motores de almacenamiento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variables
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Reserva de búfers
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Estado del InnoDB
]
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2025-12-15 09:23:14 0x7f7384063700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 19 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 20 srv_active, 0 srv_shutdown, 426 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 58
OS WAIT ARRAY INFO: signal count 57
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 3, rounds 90, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 9950
Purge done for trx's n:o < 9949 undo n:o < 0 state: running but idle
History list length 41
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421609281546856, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421609281545984, 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
1513 OS file reads, 833 OS file writes, 299 OS fsyncs
0.42 reads/s, 12544 avg bytes/read, 0.53 writes/s, 0.37 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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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 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1106.26 hash searches/s, 587.23 non-hash searches/s
---
LOG
---
Log sequence number 50993484
Log buffer assigned up to 50993484
Log buffer completed up to 50993484
Log written up to 50993484
Log flushed up to 50993484
Added dirty pages up to 50993484
Pages flushed up to 50991718
Last checkpoint at 50991718
237 log i/o's done, 0.53 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 668080
Buffer pool size 8192
Free buffers 6670
Database pages 1505
Old database pages 575
Modified db pages 12
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 1360, created 145, written 511
0.00 reads/s, 0.00 creates/s, 0.00 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: 1505, unzip_LRU len: 0
I/O sum[0]:cur[4], 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=370, Main thread ID=140133796095744 , state=sleeping
Number of rows inserted 14, updated 394, deleted 0, read 391787
0.00 inserts/s, 0.26 updates/s, 0.00 deletes/s, 1246.93 reads/s
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END OF INNODB MONITOR OUTPUT
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