Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
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Variáveis
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Pool de buffer
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Status do InnoDB
]
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2025-12-30 23:07:27 0x7f7a9e2bf700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 34 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 17 srv_active, 0 srv_shutdown, 382 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 50
OS WAIT ARRAY INFO: signal count 50
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9919
Purge done for trx's n:o < 9919 undo n:o < 0 state: running but idle
History list length 18
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421640174598760, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421640174597888, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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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
1321 OS file reads, 781 OS file writes, 250 OS fsyncs
0.68 reads/s, 13712 avg bytes/read, 7.85 writes/s, 1.56 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 0 buffer(s)
Hash table size 34679, node heap has 0 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 2 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
550.60 hash searches/s, 231.93 non-hash searches/s
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LOG
---
Log sequence number 50988208
Log buffer assigned up to 50988208
Log buffer completed up to 50988208
Log written up to 50988208
Log flushed up to 50988208
Added dirty pages up to 50988208
Pages flushed up to 50988208
Last checkpoint at 50988208
194 log i/o's done, 1.61 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 619404
Buffer pool size 8192
Free buffers 6833
Database pages 1346
Old database pages 476
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 298, not young 782
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1202, created 150, written 513
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 2 / 1000 not 2 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1346, unzip_LRU len: 0
I/O sum[220]:cur[0], 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=363, Main thread ID=140164691322624 , state=sleeping
Number of rows inserted 105, updated 390, deleted 0, read 232759
0.00 inserts/s, 0.68 updates/s, 0.00 deletes/s, 936.56 reads/s
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END OF INNODB MONITOR OUTPUT
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