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 09:49:04 0x7fd778151700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 13 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 7 srv_active, 0 srv_shutdown, 189 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 33
OS WAIT ARRAY INFO: signal count 32
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 2, rounds 60, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9867
Purge done for trx's n:o < 9867 undo n:o < 0 state: running but idle
History list length 100
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422038997884368, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422038997883496, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422038997882624, 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
1335 OS file reads, 472 OS file writes, 152 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 7 buffer(s)
23.00 hash searches/s, 2.92 non-hash searches/s
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LOG
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Log sequence number 50971290
Log buffer assigned up to 50971290
Log buffer completed up to 50971290
Log written up to 50971290
Log flushed up to 50971290
Added dirty pages up to 50971290
Pages flushed up to 50971290
Last checkpoint at 50971290
137 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 603984
Buffer pool size 8192
Free buffers 6826
Database pages 1353
Old database pages 505
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 98, not young 1685
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1210, created 146, written 287
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 1 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1353, unzip_LRU len: 0
I/O sum[223]: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=365, Main thread ID=140563515102976 , state=sleeping
Number of rows inserted 54, updated 367, deleted 0, read 56259
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 38.61 reads/s
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END OF INNODB MONITOR OUTPUT
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