Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
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Variáveis
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Pool de buffer
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Status do InnoDB
]
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2024-12-20 18:47:46 0x7f8df80e2700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 58 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 3 srv_active, 0 srv_shutdown, 115 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 21
OS WAIT ARRAY INFO: signal count 21
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9812
Purge done for trx's n:o < 9812 undo n:o < 0 state: running but idle
History list length 85
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421723291941480, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421723291940608, 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
1187 OS file reads, 370 OS file writes, 95 OS fsyncs
0.47 reads/s, 16384 avg bytes/read, 2.59 writes/s, 0.86 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 0 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 0 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
399.84 hash searches/s, 137.91 non-hash searches/s
---
LOG
---
Log sequence number 50963814
Log buffer assigned up to 50963814
Log buffer completed up to 50963814
Log written up to 50963814
Log flushed up to 50963814
Added dirty pages up to 50963814
Pages flushed up to 50963814
Last checkpoint at 50963814
92 log i/o's done, 1.21 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 137363456
Dictionary memory allocated 448499
Buffer pool size 8192
Free buffers 6940
Database pages 1241
Old database pages 477
Modified db pages 0
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 1098, created 143, written 240
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: 1241, unzip_LRU len: 0
I/O sum[0]: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=371, Main thread ID=140247808554752 , state=sleeping
Number of rows inserted 2, updated 352, deleted 0, read 139962
0.00 inserts/s, 0.62 updates/s, 0.00 deletes/s, 908.36 reads/s
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END OF INNODB MONITOR OUTPUT
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