Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Estado do InnoDB ]

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2026-08-08 13:11:07 0x2888 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 6 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7044 srv_active, 0 srv_shutdown, 7984 srv_idle
srv_master_thread log flush and writes: 15028
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 102339
OS WAIT ARRAY INFO: signal count 11407
RW-shared spins 2102, rounds 58941, OS waits 1845
RW-excl spins 114, rounds 2157, OS waits 54
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 28.04 RW-shared, 18.92 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 23348
Purge done for trx's n:o < 23348 undo n:o < 0 state: running but idle
History list length 20
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284113327141440, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327137272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327133104, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327128936, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327124768, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327120600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327116432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
15890 OS file reads, 74255 OS file writes, 42554 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
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 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 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)
0.67 hash searches/s, 0.67 non-hash searches/s
---
LOG
---
Log sequence number 11555717
Log flushed up to   11555717
Pages flushed up to 11555717
Last checkpoint at  11555708
0 pending log flushes, 0 pending chkp writes
21080 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 82632
Buffer pool size   1003
Free buffers       745
Database pages     254
Old database pages 0
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 15853, created 437, written 45748
0.00 reads/s, 0.00 creates/s, 0.00 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: 254, unzip_LRU len: 0
I/O sum[138]: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=12224, Main thread ID=10352, state: sleeping
Number of rows inserted 56, updated 9891, deleted 0, read 227202
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.83 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 8220
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
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