Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Променливи | Buffer Pool | InnoDB Състояние ]

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2025-12-13 01:55:55 0x7f85880f5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 59 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 13 srv_active, 0 srv_shutdown, 593 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 26
OS WAIT ARRAY INFO: signal count 28
RW-shared spins 3, rounds 3, OS waits 0
RW-excl spins 0, rounds 1, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 1.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9846
Purge done for trx's n:o < 9839 undo n:o < 0 state: running but idle
History list length 91
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421686638279272, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421686638278400, 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
1324 OS file reads, 546 OS file writes, 195 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 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 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
4302.94 hash searches/s, 2196.76 non-hash searches/s
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LOG
---
Log sequence number          50983088
Log buffer assigned up to    50983088
Log buffer completed up to   50983088
Log written up to            50983088
Log flushed up to            50983088
Added dirty pages up to      50983088
Pages flushed up to          50983088
Last checkpoint at           50983088
145 log i/o's done, 0.00 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 590914
Buffer pool size   8192
Free buffers       6812
Database pages     1366
Old database pages 484
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 70, not young 9
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1217, created 152, written 333
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: 1366, 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=369, Main thread ID=140211150329600 , state=sleeping
Number of rows inserted 27, updated 367, deleted 0, read 2638963
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 7347.60 reads/s
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END OF INNODB MONITOR OUTPUT
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