Storage engines

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Változók | Pufferkészlet | InnoDB állapota ]

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2025-10-31 11:50:36 0x7f05c80e1700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 10 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 13587 srv_active, 0 srv_shutdown, 28708 srv_idle
srv_master_thread log flush and writes: 42286
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SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 45425
OS WAIT ARRAY INFO: signal count 40099
RW-shared spins 0, rounds 29210, OS waits 14570
RW-excl spins 0, rounds 5341, OS waits 178
RW-sx spins 31, rounds 772, OS waits 22
Spin rounds per wait: 29210.00 RW-shared, 5341.00 RW-excl, 24.90 RW-sx
------------------------
LATEST FOREIGN KEY ERROR
------------------------
2025-10-31 11:42:07 0x7f05c80e1700  Cannot drop table `Drevopro s.r.o`.`dodavatel`
because it is referenced by `Drevopro s.r.o`.`dodaci_list`
------------
TRANSACTIONS
------------
Trx id counter 95349
Purge done for trx's n:o < 95349 undo n:o < 0 state: running
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421137785475576, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421137785471320, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421137785467064, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
884 OS file reads, 199966 OS file writes, 103236 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 69257, node heap has 0 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 48235306
Log flushed up to   48235306
Pages flushed up to 48235306
Last checkpoint at  48235297
0 pending log flushes, 0 pending chkp writes
68798 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 173680
Buffer pool size   16024
Free buffers       14649
Database pages     1369
Old database pages 485
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
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 725, created 644, written 119527
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1369, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=906, Main thread ID=139662043629312, state: sleeping
Number of rows inserted 25, updated 26684, deleted 2, read 1112333
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 11512
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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