Motores de almacenamiento

InnoDB

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

[ Variables | Reserva de búfers | Estado del InnoDB ]

=====================================
2025-11-02 22:28:38 0x7f2aec0b3700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 62 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 9173 srv_active, 0 srv_shutdown, 34543 srv_idle
srv_master_thread log flush and writes: 43707
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 30258
OS WAIT ARRAY INFO: signal count 27354
RW-shared spins 0, rounds 21251, OS waits 10579
RW-excl spins 0, rounds 2436, OS waits 83
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 21251.00 RW-shared, 2436.00 RW-excl, 0.00 RW-sx
------------------------
LATEST FOREIGN KEY ERROR
------------------------
2025-11-02 19:07:00 0x7f2af803b700 Error in foreign key constraint of table `siestagios`.`Zona`:
FOREIGN KEY (Aluno_num_aluno) REFERENCES Aluno(num_aluno)
    ON DELETE SET NULL
    ON UPDATE CASCADE
):
Cannot find an index in the referenced table where the
referenced columns appear as the first columns, or column types
in the table and the referenced table do not match for constraint.
Note that the internal storage type of ENUM and SET changed in
tables created with >= InnoDB-4.1.12, and such columns in old tables
cannot be referenced by such columns in new tables.
Please refer to https://mariadb.com/kb/en/library/foreign-keys/ for correct foreign key definition.
Create  table `siestagios`.`Zona` with foreign key constraint failed. There is no index in the referenced table where the referenced columns appear as the first columns near 'FOREIGN KEY (Aluno_num_aluno) REFERENCES Aluno(num_aluno)
    ON DELETE SET NULL
    ON UPDATE CASCADE
)'.
------------
TRANSACTIONS
------------
Trx id counter 74198
Purge done for trx's n:o < 74198 undo n:o < 0 state: running but idle
History list length 6
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421297302852088, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421297302847832, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421297302843576, 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
887 OS file reads, 132413 OS file writes, 69963 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 1.13 writes/s, 0.27 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 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
0.40 hash searches/s, 0.29 non-hash searches/s
---
LOG
---
Log sequence number 34048664
Log flushed up to   34048543
Pages flushed up to 34044478
Last checkpoint at  34044469
0 pending log flushes, 0 pending chkp writes
47796 log i/o's done, 0.23 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 114896
Buffer pool size   16024
Free buffers       15069
Database pages     948
Old database pages 345
Modified db pages  7
Percent of dirty pages(LRU & free pages): 0.044
Max dirty pages percent: 75.000
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 728, created 220, written 77187
0.00 reads/s, 0.00 creates/s, 0.89 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: 948, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=903, Main thread ID=139821754332928, state: sleeping
Number of rows inserted 20, updated 17487, deleted 0, read 1537220
0.00 inserts/s, 0.11 updates/s, 0.00 deletes/s, 0.27 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 12841
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================