Storage engines

InnoDB

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

[ متغيرات | Buffer Pool | وضع InnoDB ]

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2025-09-13 23:16:23 0x7f91d80ec700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 45 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 13274 srv_active, 0 srv_shutdown, 70112 srv_idle
srv_master_thread log flush and writes: 83367
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 37869
OS WAIT ARRAY INFO: signal count 31026
RW-shared spins 0, rounds 32500, OS waits 16242
RW-excl spins 0, rounds 2324, OS waits 77
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 32500.00 RW-shared, 2324.00 RW-excl, 0.00 RW-sx
------------------------
LATEST FOREIGN KEY ERROR
------------------------
2025-09-13 01:25:34 0x7f91c9566700  Cannot drop table `jonas`.`cliente`
because it is referenced by `jonas`.`telefone`
------------
TRANSACTIONS
------------
Trx id counter 70161
Purge done for trx's n:o < 70161 undo n:o < 0 state: running but idle
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421739123503608, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421739123499352, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421739123495096, 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
867 OS file reads, 150938 OS file writes, 98180 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 2.93 writes/s, 1.44 fsyncs/s
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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 2 buffer(s)
Hash table size 69257, node heap has 13 buffer(s)
Hash table size 69257, node heap has 2 buffer(s)
Hash table size 69257, node heap has 25 buffer(s)
Hash table size 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 3 buffer(s)
Hash table size 69257, node heap has 26 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
0.78 hash searches/s, 0.60 non-hash searches/s
---
LOG
---
Log sequence number 31743279
Log flushed up to   31743158
Pages flushed up to 31742648
Last checkpoint at  31742639
0 pending log flushes, 0 pending chkp writes
61779 log i/o's done, 0.98 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 141616
Buffer pool size   16024
Free buffers       15010
Database pages     942
Old database pages 336
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.019
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 708, created 234, written 76974
0.00 reads/s, 0.00 creates/s, 1.80 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: 942, 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=902, Main thread ID=140263649384192, state: sleeping
Number of rows inserted 1036, updated 18096, deleted 20, read 9952651
0.00 inserts/s, 0.29 updates/s, 0.00 deletes/s, 0.62 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 15454
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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