Speicher-Engines

InnoDB

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

[ Variablen | Puffer-Pool | InnoDB-Status ]

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2026-06-02 14:36:55 0x7eccd85046c0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 15 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 563 srv_active, 0 srv_shutdown, 23861 srv_idle
srv_master_thread log flush and writes: 24424
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 490
OS WAIT ARRAY INFO: signal count 426
RW-shared spins 448, rounds 13149, OS waits 399
RW-excl spins 5, rounds 93, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 29.35 RW-shared, 18.60 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 83471
Purge done for trx's n:o < 83471 undo n:o < 0 state: running but idle
History list length 3
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 420893246149352, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246145136, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246174648, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246170432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246140920, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246136704, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246132488, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 420893246128272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
1235 OS file reads, 6058 OS file writes, 3766 OS fsyncs
5.07 reads/s, 16384 avg bytes/read, 15.87 writes/s, 7.47 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 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 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 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
19.73 hash searches/s, 42.13 non-hash searches/s
---
LOG
---
Log sequence number 35180792
Log flushed up to   35180772
Pages flushed up to 35174582
Last checkpoint at  35143456
0 pending log flushes, 0 pending chkp writes
2108 log i/o's done, 4.40 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 87840
Buffer pool size   1003
Free buffers       732
Database pages     268
Old database pages 0
Modified db pages  27
Percent of dirty pages(LRU & free pages): 2.697
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 1195, created 158, written 3371
5.07 reads/s, 0.07 creates/s, 10.33 writes/s
Buffer pool hit rate 970 / 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: 268, unzip_LRU len: 0
I/O sum[329]:cur[1], 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=292, Main thread ID=139417675077312, state: sleeping
Number of rows inserted 23, updated 658, deleted 0, read 6119
0.00 inserts/s, 3.13 updates/s, 0.00 deletes/s, 16.87 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 352
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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