Storage engines

InnoDB

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

[ Variables | Buffer Pool | InnoDB Status ]

=====================================
2026-05-05 18:23:22 0x3654 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 14 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 14821 srv_active, 0 srv_shutdown, 406653 srv_idle
srv_master_thread log flush and writes: 421474
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 85146
OS WAIT ARRAY INFO: signal count 21355
RW-shared spins 13093, rounds 374217, OS waits 12344
RW-excl spins 3457, rounds 17851, OS waits 288
RW-sx spins 102, rounds 1010, OS waits 20
Spin rounds per wait: 28.58 RW-shared, 5.16 RW-excl, 9.90 RW-sx
------------------------
LATEST FOREIGN KEY ERROR
------------------------
2026-05-03 11:37:56 0x2028 Transaction:
TRANSACTION 7228, ACTIVE 0 sec updating or deleting
mysql tables in use 1, locked 1
4 lock struct(s), heap size 1128, 2 row lock(s), undo log entries 1
MySQL thread id 3036, OS thread handle 8232, query id 500238 localhost 127.0.0.1 root Updating
UPDATE transaksi_keuangan SET cabang_id = ?, tipe_transaksi = ?, kategori = ?, nominal = ?, keterangan = ?, akun_kas_id = ?, tanggal_waktu = ? WHERE id = ?
Foreign key constraint fails for table `ayyub_pos_db`.`transaksi_keuangan`:
,
  CONSTRAINT `transaksi_keuangan_ibfk_1` FOREIGN KEY (`cabang_id`) REFERENCES `cabang` (`id`) in parent table, in index idx_dashboard_transaksi tuple:
DATA TUPLE: 3 fields;
 0: len 4; hex 80000000; asc     ;;
 1: len 5; hex 99b982b978; asc     x;;
 2: len 4; hex 80000005; asc     ;;

But in parent table `ayyub_pos_db`.`cabang`, in index PRIMARY,
the closest match we can find is record:
PHYSICAL RECORD: n_fields 9; compact format; info bits 0
 0: len 4; hex 80000001; asc     ;;
 1: len 6; hex 000000000000; asc       ;;
 2: len 7; hex 80000000000000; asc        ;;
 3: len 7; hex 4342472d303031; asc CBG-001;;
 4: len 20; hex 4179797562204b6f6d7075746572205075736174; asc Ayyub Komputer Pusat;;
 5: len 18; hex 4a6c2e205075736174204954204e6f2e2031; asc Jl. Pusat IT No. 1;;
 6: len 12; hex 303831323334353637383930; asc 081234567890;;
 7: len 1; hex 81; asc  ;;
 8: len 4; hex 69e17e80; asc i ~ ;;

------------
TRANSACTIONS
------------
Trx id counter 42859
Purge done for trx's n:o < 42859 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 282952295289048, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282952295284880, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
51359 OS file reads, 166621 OS file writes, 106203 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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
1.29 hash searches/s, 2.14 non-hash searches/s
---
LOG
---
Log sequence number 30231206
Log flushed up to   30231206
Pages flushed up to 30231206
Last checkpoint at  30231197
0 pending log flushes, 0 pending chkp writes
56391 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 262920
Buffer pool size   1003
Free buffers       739
Database pages     256
Old database pages 0
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 31, not young 73
0.00 youngs/s, 0.00 non-youngs/s
Pages read 51263, created 1255, written 93620
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: 256, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=3360, Main thread ID=4644, state: sleeping
Number of rows inserted 18555, updated 17304, deleted 113, read 3208685
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1.29 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 100599
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================