Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Variablat | Pellgu zbutës | Statusi InnoDB ]

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2026-05-24 01:46:08 133705569924800 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 6 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1340 srv_active, 0 srv_shutdown, 666153 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 15374
OS WAIT ARRAY INFO: signal count 13576
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
------------
TRANSACTIONS
------------
Trx id counter 14855
Purge done for trx's n:o < 14855 undo n:o < 0 state: running but idle
History list length 32
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 415180546644344, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546642728, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546643536, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546641920, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546641112, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546640304, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 415180546639496, not started
0 lock struct(s), heap size 1128, 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 (read 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 (write 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)
Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,
 ibuf aio reads:
Pending flushes (fsync) log: 0; buffer pool: 0
1004 OS file reads, 39161 OS file writes, 28728 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 8.77 writes/s, 6.54 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 34679, node heap has 8 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 2 buffer(s)
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 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
311.95 hash searches/s, 187.30 non-hash searches/s
---
LOG
---
Log capacity                 104857600
Log capacity used            104857600
Log sequence number          25736805
Log buffer assigned up to    25736805
Log buffer completed up to   25736805
Log written up to            25736805
Log flushed up to            25736805
Added dirty pages up to      25736805
Pages flushed up to          25731969
Last checkpoint at           25731969
Log minimum file id is       5
Log maximum file id is       7
20091 log i/o's done, 3.17 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 0
Dictionary memory allocated 1082220
Buffer pool size   8191
Free buffers       6561
Database pages     1607
Old database pages 598
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1796, not young 802
0.00 youngs/s, 0.00 non-youngs/s
Pages read 977, created 897, written 13876
0.00 reads/s, 0.00 creates/s, 4.61 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: 1607, unzip_LRU len: 0
I/O sum[71]:cur[11], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=22495, Main thread ID=133705026766528 , state=sleeping
Number of rows inserted 19547, updated 1245, deleted 1864, read 26080
0.00 inserts/s, 0.67 updates/s, 0.00 deletes/s, 5.50 reads/s
Number of system rows inserted 1163, updated 1698, deleted 9, read 5891624
0.00 inserts/s, 0.17 updates/s, 0.00 deletes/s, 443.09 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
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