Механизмы хранилища

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Переменные | Буферный пул | Состояние InnoDB ]

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2025-12-10 06:58:40 0x7f9a68383700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 35 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 10707 srv_active, 0 srv_shutdown, 10542 srv_idle
srv_master_thread log flush and writes: 21246
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 33349
OS WAIT ARRAY INFO: signal count 28291
RW-shared spins 0, rounds 15088, OS waits 7520
RW-excl spins 0, rounds 3434, OS waits 119
RW-sx spins 2, rounds 60, OS waits 2
Spin rounds per wait: 15088.00 RW-shared, 3434.00 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 77403
Purge done for trx's n:o < 77403 undo n:o < 0 state: running but idle
History list length 25
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421776148840952, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421776148836696, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421776148832440, 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
863 OS file reads, 139689 OS file writes, 73926 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 5.34 writes/s, 3.14 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 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 10 buffer(s)
Hash table size 69257, node heap has 2 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 3 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
2.49 hash searches/s, 0.77 non-hash searches/s
---
LOG
---
Log sequence number 33568836
Log flushed up to   33568699
Pages flushed up to 33558146
Last checkpoint at  33558137
0 pending log flushes, 0 pending chkp writes
45583 log i/o's done, 2.06 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 285212672
Dictionary memory allocated 138944
Buffer pool size   16024
Free buffers       15091
Database pages     866
Old database pages 328
Modified db pages  17
Percent of dirty pages(LRU & free pages): 0.107
Max dirty pages percent: 75.000
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 704, created 162, written 84594
0.00 reads/s, 0.00 creates/s, 2.91 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: 866, 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=903, Main thread ID=140300399929088, state: sleeping
Number of rows inserted 9, updated 19530, deleted 0, read 1461114
0.00 inserts/s, 0.74 updates/s, 0.00 deletes/s, 1.49 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 4131
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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