Механізми зберігання
InnoDB
Supports transactions, row-level locking, and foreign keys
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Змінні
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Буферний пул
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Статус InnoDB
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2025-11-05 11:14:17 0x7fb448160700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 17 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 43 srv_active, 0 srv_shutdown, 766 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 73
OS WAIT ARRAY INFO: signal count 72
RW-shared spins 4, rounds 7, OS waits 3
RW-excl spins 1, rounds 30, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.75 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9960
Purge done for trx's n:o < 9959 undo n:o < 0 state: running but idle
History list length 20
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421887400684136, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421887400683264, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
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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
1493 OS file reads, 1169 OS file writes, 451 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.18 writes/s, 0.06 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 2 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
385.21 hash searches/s, 145.17 non-hash searches/s
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LOG
---
Log sequence number 51054370
Log buffer assigned up to 51054370
Log buffer completed up to 51054370
Log written up to 51054370
Log flushed up to 51054370
Added dirty pages up to 51054370
Pages flushed up to 51054370
Last checkpoint at 51054370
307 log i/o's done, 0.00 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 137363456
Dictionary memory allocated 650809
Buffer pool size 8192
Free buffers 6655
Database pages 1522
Old database pages 572
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 399, not young 1581
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1362, created 202, written 717
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: 1522, unzip_LRU len: 0
I/O sum[1]: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=368, Main thread ID=140411916179200 , state=sleeping
Number of rows inserted 857, updated 422, deleted 0, read 795353
2.65 inserts/s, 0.00 updates/s, 0.00 deletes/s, 688.84 reads/s
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END OF INNODB MONITOR OUTPUT
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