Механізми зберігання

InnoDB

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

[ Змінні | Буферний пул | Статус InnoDB ]

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2025-12-09 03:57:04 0x7fe2d549f700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 36 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 6036 srv_active, 0 srv_shutdown, 8017 srv_idle
srv_master_thread log flush and writes: 14053
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 19361
OS WAIT ARRAY INFO: signal count 16475
RW-shared spins 0, rounds 10053, OS waits 5015
RW-excl spins 0, rounds 1815, OS waits 63
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 10053.00 RW-shared, 1815.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 56645
Purge done for trx's n:o < 56645 undo n:o < 0 state: running
History list length 13
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422087213629944, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422087213625688, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422087213621432, 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, 73558 OS file writes, 42076 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 8.78 writes/s, 4.42 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 9 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)
4.97 hash searches/s, 0.58 non-hash searches/s
---
LOG
---
Log sequence number 20592443
Log flushed up to   20592322
Pages flushed up to 20587349
Last checkpoint at  20587340
0 pending log flushes, 0 pending chkp writes
25671 log i/o's done, 2.69 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15108
Database pages     850
Old database pages 328
Modified db pages  12
Percent of dirty pages(LRU & free pages): 0.075
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 146, written 42520
0.00 reads/s, 0.00 creates/s, 5.44 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: 850, 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=140611743061760, state: sleeping
Number of rows inserted 2, updated 9457, deleted 0, read 1969335
0.00 inserts/s, 1.31 updates/s, 0.00 deletes/s, 2.69 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 1738
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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