Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variáveis
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Pool de buffer
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Status do InnoDB
]
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2024-09-20 00:18:51 0x7f2ef2cb5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 39 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 34 srv_active, 0 srv_shutdown, 148 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 66
OS WAIT ARRAY INFO: signal count 66
RW-shared spins 1, rounds 2, OS waits 1
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10064
Purge done for trx's n:o < 10064 undo n:o < 0 state: running but idle
History list length 7
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421316078649656, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421316078648784, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421316078647912, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421316078647040, 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
1605 OS file reads, 1260 OS file writes, 411 OS fsyncs
0.05 reads/s, 16384 avg bytes/read, 0.56 writes/s, 0.44 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 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
812.93 hash searches/s, 271.61 non-hash searches/s
---
LOG
---
Log sequence number 51036519
Log buffer assigned up to 51036519
Log buffer completed up to 51036519
Log written up to 51036519
Log flushed up to 51036519
Added dirty pages up to 51036519
Pages flushed up to 51036519
Last checkpoint at 51036519
367 log i/o's done, 0.20 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 777181
Buffer pool size 8192
Free buffers 6601
Database pages 1573
Old database pages 561
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 421, not young 1629
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1420, created 165, written 794
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: 1573, unzip_LRU len: 0
I/O sum[12]: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=369, Main thread ID=139840591968000 , state=sleeping
Number of rows inserted 188, updated 449, deleted 0, read 508956
0.00 inserts/s, 0.08 updates/s, 0.00 deletes/s, 2080.05 reads/s
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END OF INNODB MONITOR OUTPUT
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