Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[
Variables
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Buffer Pool
|
InnoDB Status
]
=====================================
2026-05-27 09:43:27 0x7f8b343566c0 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 21 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 0 srv_active, 0 srv_shutdown, 691874 srv_idle
srv_master_thread log flush and writes: 691867
----------
SEMAPHORES
----------
------------
TRANSACTIONS
------------
Trx id counter 4703440
Purge done for trx's n:o < 4703430 undo n:o < 0 state: running
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION (0x7f8b441c9a80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c8f80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c6e80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c6380), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c5880), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c1680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421e380), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421d880), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421cd80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421c280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421b780), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421ac80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4421a180), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44219680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44218b80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44218080), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44217580), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44216a80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44215480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44215f80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44214980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44213e80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44213380), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44212880), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44211d80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44211280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44210780), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420fc80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420f180), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420e680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420db80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420d080), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420c580), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420ba80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420af80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b4420a480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44209980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44208e80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44208380), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44207880), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44206d80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44206280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44205780), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44204c80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44204180), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44203680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44202b80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44200a80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441fff80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441ff480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441fe980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441fde80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441fb280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441fa780), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f9c80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f9180), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f8680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f7b80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f7080), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f6580), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f5a80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f4f80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f4480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f3980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f2e80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441f0280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44202080), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b44201580), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c0b80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c4d80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d7680), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d6b80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d6080), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d5580), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d4a80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d3f80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d3480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d2980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d1e80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441d0880), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c8480), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c7980), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c4280), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c3780), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c2c80), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0x7f8b441c2180), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
Pending flushes (fsync): 0
4038 OS file reads, 6407 OS file writes, 322796 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 3.52 fsyncs/s
---
LOG
---
Log sequence number 4389131625
Log flushed up to 4389131625
Pages flushed up to 4353569014
Last checkpoint at 4353569014
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 167772160
Dictionary memory allocated 1601592
Buffer pool size 8112
Free buffers 4239
Database pages 3873
Old database pages 1409
Modified db pages 399
Percent of dirty pages(LRU & free pages): 4.918
Max dirty pages percent: 90.000
Pending reads 0
Pending writes: LRU 0, flush list 0
Pages made young 29206, not young 36936
0.14 youngs/s, 0.00 non-youngs/s
Pages read 3504, created 965, written 6343
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: 3873, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 read views open inside InnoDB
state: sleeping
----------------------------
END OF INNODB MONITOR OUTPUT
============================