Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Променливи | Buffer Pool | InnoDB Състояние ]

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2025-12-16 01:08:35 0x7f83d00cd700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 41 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 33 srv_active, 0 srv_shutdown, 434 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 95
OS WAIT ARRAY INFO: signal count 96
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 1, rounds 30, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9979
Purge done for trx's n:o < 9974 undo n:o < 0 state: running but idle
History list length 55
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421679648946792, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421679648945920, 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, 1087 OS file writes, 448 OS fsyncs
0.10 reads/s, 12544 avg bytes/read, 0.78 writes/s, 0.51 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 1 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)
360.36 hash searches/s, 214.73 non-hash searches/s
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LOG
---
Log sequence number          51022355
Log buffer assigned up to    51022355
Log buffer completed up to   51022355
Log written up to            51022355
Log flushed up to            51022355
Added dirty pages up to      51022355
Pages flushed up to          51022355
Last checkpoint at           51022355
314 log i/o's done, 0.35 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 672149
Buffer pool size   8192
Free buffers       6770
Database pages     1403
Old database pages 497
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 427, not young 2435
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1253, created 153, written 655
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: 1403, unzip_LRU len: 0
I/O sum[26]: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=370, Main thread ID=140204162615040 , state=sleeping
Number of rows inserted 88, updated 422, deleted 0, read 338607
0.12 inserts/s, 0.05 updates/s, 0.00 deletes/s, 514.06 reads/s
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END OF INNODB MONITOR OUTPUT
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