Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Променливи | Buffer Pool | InnoDB Състояние ]

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2025-12-21 13:04:10 0x7f35d00e2700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 21 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 195 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 22
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 9781
Purge done for trx's n:o < 9776 undo n:o < 0 state: running but idle
History list length 65
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421344648469096, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421344648468224, 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
1232 OS file reads, 318 OS file writes, 102 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 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 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 4 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
163.75 hash searches/s, 36.71 non-hash searches/s
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LOG
---
Log sequence number          50955217
Log buffer assigned up to    50955217
Log buffer completed up to   50955217
Log written up to            50955217
Log flushed up to            50955217
Added dirty pages up to      50955217
Pages flushed up to          50955217
Last checkpoint at           50955217
60 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 547596
Buffer pool size   8192
Free buffers       6908
Database pages     1267
Old database pages 453
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 34, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1125, created 145, written 209
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: 1267, unzip_LRU len: 0
I/O sum[1]: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=367, Main thread ID=139869163558656 , state=sleeping
Number of rows inserted 47, updated 332, deleted 0, read 824331
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 424.17 reads/s
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END OF INNODB MONITOR OUTPUT
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