Механізми зберігання

InnoDB

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

[ Змінні | Буферний пул | Статус InnoDB ]

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2026-01-26 13:47:45 0x7f7e085f1700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 56 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 774 srv_active, 0 srv_shutdown, 1080 srv_idle
srv_master_thread log flush and writes: 1854
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 3615
OS WAIT ARRAY INFO: signal count 2713
RW-shared spins 0, rounds 1176, OS waits 582
RW-excl spins 0, rounds 188, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1176.00 RW-shared, 188.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 40233
Purge done for trx's n:o < 40233 undo n:o < 0 state: running
History list length 7
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421654265328280, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421654265319768, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421654265324024, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421654265315512, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
858 OS file reads, 9894 OS file writes, 5252 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 3.55 writes/s, 2.07 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 26 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
1.45 hash searches/s, 1.07 non-hash searches/s
---
LOG
---
Log sequence number 10986795
Log flushed up to   10986795
Pages flushed up to 10986795
Last checkpoint at  10986786
0 pending log flushes, 0 pending chkp writes
3316 log i/o's done, 1.39 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 133600
Buffer pool size   16024
Free buffers       15116
Database pages     840
Old database pages 326
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 699, created 141, written 5914
0.00 reads/s, 0.00 creates/s, 1.93 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: 840, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=904, Main thread ID=140178630854400, state: sleeping
Number of rows inserted 1, updated 1359, deleted 0, read 828985
0.00 inserts/s, 0.43 updates/s, 0.00 deletes/s, 1.36 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 413
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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