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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2025-09-14 07:50:08 0x7f6a8c0f2700 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: 12 srv_active, 0 srv_shutdown, 248 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 37
OS WAIT ARRAY INFO: signal count 36
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 9866
Purge done for trx's n:o < 9866 undo n:o < 0 state: running but idle
History list length 107
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421570735782504, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421570735781632, 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
1182 OS file reads, 493 OS file writes, 154 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 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 0 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
2.24 hash searches/s, 2.71 non-hash searches/s
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LOG
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Log sequence number 50973319
Log buffer assigned up to 50973319
Log buffer completed up to 50973319
Log written up to 50973319
Log flushed up to 50973319
Added dirty pages up to 50973319
Pages flushed up to 50973319
Last checkpoint at 50973319
140 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 525331
Buffer pool size 8192
Free buffers 6953
Database pages 1229
Old database pages 433
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 142, not young 329
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1085, created 156, written 300
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 9 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1229, unzip_LRU len: 0
I/O sum[126]: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=373, Main thread ID=140095250433792 , state=sleeping
Number of rows inserted 362, updated 374, deleted 0, read 35020
5.29 inserts/s, 0.00 updates/s, 0.00 deletes/s, 6.12 reads/s
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END OF INNODB MONITOR OUTPUT
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