Storage engines

InnoDB

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

[ Variables | Buffer Pool | InnoDB Status ]

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2026-11-03 09:05:51 0x1248 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 9 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 0 srv_active, 0 srv_shutdown, 17764 srv_idle
srv_master_thread log flush and writes: 17764
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SEMAPHORES
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TRANSACTIONS
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Trx id counter 20595
Purge done for trx's n:o < 20591 undo n:o < 0 state: running
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION (0000026D1B337040), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0000026D1B3365C0), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0000026D1B335B40), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
Pending flushes (fsync): 0
781 OS file reads, 687 OS file writes, 12158 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.67 fsyncs/s
---
LOG
---
Log sequence number 15021051
Log flushed up to   15021051
Pages flushed up to 13244229
Last checkpoint at  13244229
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 197464
Buffer pool size   1014
Free buffers       843
Database pages     171
Old database pages 0
Modified db pages  157
Percent of dirty pages(LRU & free pages): 15.468
Max dirty pages percent: 90.000
Pending reads 0
Pending writes: LRU 0, flush list 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 719, created 200, written 679
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: 171, 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 read views open inside InnoDB
state: sleeping
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END OF INNODB MONITOR OUTPUT
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