Motores de almacenamiento

InnoDB

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

[ Variables | Reserva de búfers | Estado del InnoDB ]

=====================================
2026-10-04 20:04:15 0xa340 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 58 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 331 srv_active, 0 srv_shutdown, 13744 srv_idle
srv_master_thread log flush and writes: 14075
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 1214
OS WAIT ARRAY INFO: signal count 1034
RW-shared spins 1232, rounds 25428, OS waits 795
RW-excl spins 1055, rounds 4070, OS waits 4
RW-sx spins 3, rounds 4, OS waits 0
Spin rounds per wait: 20.64 RW-shared, 3.86 RW-excl, 1.33 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 2188
Purge done for trx's n:o < 2188 undo n:o < 0 state: running
History list length 8
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283993918091552, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283993918087384, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283993918083216, 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
1769 OS file reads, 5927 OS file writes, 3316 OS fsyncs
0.60 reads/s, 16384 avg bytes/read, 2.74 writes/s, 1.66 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 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)
Hash table size 4441, node heap has 1 buffer(s)
4.71 hash searches/s, 11.62 non-hash searches/s
---
LOG
---
Log sequence number 1519464
Log flushed up to   1519444
Pages flushed up to 1515274
Last checkpoint at  1506891
0 pending log flushes, 0 pending chkp writes
2179 log i/o's done, 1.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 107672
Buffer pool size   1003
Free buffers       733
Database pages     263
Old database pages 0
Modified db pages  7
Percent of dirty pages(LRU & free pages): 0.702
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 2, not young 501
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1733, created 366, written 3362
0.60 reads/s, 0.00 creates/s, 1.52 writes/s
Buffer pool hit rate 983 / 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: 263, unzip_LRU len: 0
I/O sum[74]:cur[28], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=38428, Main thread ID=15980, state: sleeping
Number of rows inserted 1001, updated 466, deleted 0, read 24175
0.00 inserts/s, 0.45 updates/s, 0.00 deletes/s, 4.66 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 638
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================