Mecanismos de armazenamento

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Variáveis | Pool de buffer | Status do InnoDB ]

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2024-09-19 19:23:09 0x7f99280f8700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 9 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 173 srv_active, 0 srv_shutdown, 254 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 1461
OS WAIT ARRAY INFO: signal count 1482
RW-shared spins 406, rounds 775, OS waits 369
RW-excl spins 537, rounds 3649, OS waits 50
RW-sx spins 1, rounds 19, OS waits 0
Spin rounds per wait: 1.91 RW-shared, 6.80 RW-excl, 19.00 RW-sx
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TRANSACTIONS
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Trx id counter 20274
Purge done for trx's n:o < 20273 undo n:o < 0 state: running but idle
History list length 21
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421771420949096, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421771420948224, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
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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
1382 OS file reads, 31689 OS file writes, 15869 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 1 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 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
932.90 hash searches/s, 607.60 non-hash searches/s
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LOG
---
Log sequence number          63862350
Log buffer assigned up to    63862350
Log buffer completed up to   63862350
Log written up to            63862350
Log flushed up to            63862350
Added dirty pages up to      63862350
Pages flushed up to          63862350
Last checkpoint at           63862350
25206 log i/o's done, 0.00 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 1762496
Buffer pool size   8192
Free buffers       5321
Database pages     2841
Old database pages 1028
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 3424, not young 507
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1251, created 1626, written 5563
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: 2841, unzip_LRU len: 0
I/O sum[2]: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=372, Main thread ID=140295933998848 , state=sleeping
Number of rows inserted 14708, updated 9331, deleted 4866, read 1080584
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1619.93 reads/s
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END OF INNODB MONITOR OUTPUT
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