Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

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2026-09-26 18:47:45 0x7f9fac54f6c0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 12 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 617005 srv_active, 0 srv_shutdown, 438483 srv_idle
srv_master_thread log flush and writes: 1055412
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 3692629
OS WAIT ARRAY INFO: signal count 2392880
RW-shared spins 352620, rounds 10572006, OS waits 351790
RW-excl spins 2895, rounds 87407, OS waits 2792
RW-sx spins 17, rounds 480, OS waits 12
Spin rounds per wait: 29.98 RW-shared, 30.19 RW-excl, 28.24 RW-sx
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TRANSACTIONS
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Trx id counter 1911679
Purge done for trx's n:o < 1911679 undo n:o < 0 state: running but idle
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421798779597304, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421798779593088, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421798779588872, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421798779584656, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
620171 OS file reads, 7218295 OS file writes, 4537823 OS fsyncs
0.42 reads/s, 16384 avg bytes/read, 8.08 writes/s, 5.33 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 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
15.67 hash searches/s, 26.75 non-hash searches/s
---
LOG
---
Log sequence number 920653498
Log flushed up to   920653478
Pages flushed up to 920652266
Last checkpoint at  920649206
0 pending log flushes, 0 pending chkp writes
2273479 log i/o's done, 2.25 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 75640
Buffer pool size   1002
Free buffers       742
Database pages     256
Old database pages 0
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.300
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 620137, created 30419, written 4142253
0.42 reads/s, 0.00 creates/s, 4.75 writes/s
Buffer pool hit rate 995 / 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: 256, unzip_LRU len: 0
I/O sum[248]:cur[15], 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=284, Main thread ID=140322612963008, state: sleeping
Number of rows inserted 57, updated 919400, deleted 0, read 13512290
0.00 inserts/s, 0.92 updates/s, 0.00 deletes/s, 14.92 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 64788
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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