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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2025-07-13 01:21:05 0x7f0e0c0ae700 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: 9 srv_active, 0 srv_shutdown, 308 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 29
OS WAIT ARRAY INFO: signal count 29
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 3, rounds 90, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9825
Purge done for trx's n:o < 9823 undo n:o < 0 state: running but idle
History list length 85
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421173473537488, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421173473536616, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421173473535744, 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
1282 OS file reads, 434 OS file writes, 157 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 0 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 5 buffer(s)
618.41 hash searches/s, 60.84 non-hash searches/s
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LOG
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Log sequence number 50965694
Log buffer assigned up to 50965694
Log buffer completed up to 50965694
Log written up to 50965694
Log flushed up to 50965694
Added dirty pages up to 50965694
Pages flushed up to 50965694
Last checkpoint at 50965694
115 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 545540
Buffer pool size 8192
Free buffers 6854
Database pages 1328
Old database pages 510
Modified db pages 0
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 1185, created 143, written 265
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: 1328, unzip_LRU len: 0
I/O sum[0]: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=139697985632000 , state=sleeping
Number of rows inserted 11, updated 352, deleted 0, read 216122
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1123.68 reads/s
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END OF INNODB MONITOR OUTPUT
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