Storage engines

InnoDB

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

[ Variabel | Penampungan Penyangga | Status InnoDB ]

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2026-01-14 22:39:26 0x7fcc600e5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 36 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 7384 srv_active, 0 srv_shutdown, 27115 srv_idle
srv_master_thread log flush and writes: 34495
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 22575
OS WAIT ARRAY INFO: signal count 19559
RW-shared spins 0, rounds 16714, OS waits 8344
RW-excl spins 0, rounds 1734, OS waits 63
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 16714.00 RW-shared, 1734.00 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 60874
Purge done for trx's n:o < 60874 undo n:o < 0 state: running but idle
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421990738743800, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421990738739544, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421990738735288, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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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
862 OS file reads, 92965 OS file writes, 54243 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 4.97 writes/s, 2.69 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 69257, node heap has 1 buffer(s)
Hash table size 69257, node heap has 9 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 25 buffer(s)
Hash table size 69257, node heap has 0 buffer(s)
1.56 hash searches/s, 0.56 non-hash searches/s
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LOG
---
Log sequence number 24905792
Log flushed up to   24905792
Pages flushed up to 24905792
Last checkpoint at  24905749
0 pending log flushes, 0 pending chkp writes
35451 log i/o's done, 1.69 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 130928
Buffer pool size   16024
Free buffers       15075
Database pages     883
Old database pages 330
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 703, created 180, written 51204
0.00 reads/s, 0.00 creates/s, 2.94 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: 883, 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=907, Main thread ID=140515190224640, state: sleeping
Number of rows inserted 19, updated 11314, deleted 0, read 1422468
0.00 inserts/s, 0.47 updates/s, 0.00 deletes/s, 1.00 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 1252
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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