Механізми зберігання

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Змінні | Буферний пул | Статус InnoDB ]

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2026-04-05 19:22:32 0x7f42001f5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 38 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 30 srv_active, 0 srv_shutdown, 374 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 472
OS WAIT ARRAY INFO: signal count 416
RW-shared spins 67, rounds 125, OS waits 58
RW-excl spins 195, rounds 1235, OS waits 17
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 1.87 RW-shared, 6.33 RW-excl, 30.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10375
Purge done for trx's n:o < 10371 undo n:o < 0 state: running but idle
History list length 53
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421396609686120, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421396609685248, 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
1297 OS file reads, 3457 OS file writes, 1022 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.39 writes/s, 0.32 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 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
2096.58 hash searches/s, 1670.27 non-hash searches/s
---
LOG
---
Log sequence number          52763574
Log buffer assigned up to    52763574
Log buffer completed up to   52763574
Log written up to            52763574
Log flushed up to            52763574
Added dirty pages up to      52763574
Pages flushed up to          52763574
Last checkpoint at           52763574
1741 log i/o's done, 0.13 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 523544
Buffer pool size   8192
Free buffers       6771
Database pages     1395
Old database pages 494
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1124, not young 1314
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1158, created 415, written 1483
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: 1395, unzip_LRU len: 0
I/O sum[6]: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=372, Main thread ID=139921122604800 , state=sleeping
Number of rows inserted 66123, updated 3176, deleted 1799, read 1164945
0.03 inserts/s, 0.00 updates/s, 0.00 deletes/s, 2439.96 reads/s
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END OF INNODB MONITOR OUTPUT
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