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 17:57:43 0x7f9fa04ff6c0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 55 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 614988 srv_active, 0 srv_shutdown, 437508 srv_idle
srv_master_thread log flush and writes: 1052420
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 3685767
OS WAIT ARRAY INFO: signal count 2387937
RW-shared spins 351438, rounds 10536546, OS waits 350610
RW-excl spins 2891, rounds 87287, OS waits 2788
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
------------
Trx id counter 1905647
Purge done for trx's n:o < 1905647 undo n:o < 0 state: running
History list length 4
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421798779597304, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421798779609952, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421798779605736, 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
618172 OS file reads, 7195077 OS file writes, 4522797 OS fsyncs
0.91 reads/s, 16384 avg bytes/read, 10.53 writes/s, 5.84 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 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)
22.76 hash searches/s, 41.84 non-hash searches/s
---
LOG
---
Log sequence number 917871840
Log flushed up to   917871820
Pages flushed up to 917869224
Last checkpoint at  917867581
0 pending log flushes, 0 pending chkp writes
2266096 log i/o's done, 3.25 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  8
Percent of dirty pages(LRU & free pages): 0.801
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 618138, created 30341, written 4129060
0.91 reads/s, 0.16 creates/s, 6.31 writes/s
Buffer pool hit rate 994 / 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[379]: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=284, Main thread ID=140322612963008, state: sleeping
Number of rows inserted 57, updated 916550, deleted 0, read 13464294
0.00 inserts/s, 1.76 updates/s, 0.00 deletes/s, 21.40 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 64768
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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