Storage engines

InnoDB

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

[ Променливи | Buffer Pool | InnoDB Състояние ]

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2025-12-23 05:51:33 0x7fc016731700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 28 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 1146 srv_active, 0 srv_shutdown, 3591 srv_idle
srv_master_thread log flush and writes: 4735
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 4463
OS WAIT ARRAY INFO: signal count 3909
RW-shared spins 0, rounds 2692, OS waits 1335
RW-excl spins 0, rounds 121, OS waits 4
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2692.00 RW-shared, 121.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 42025
Purge done for trx's n:o < 42025 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421937982788248, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421937982783992, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421937982779736, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421937982775480, 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
852 OS file reads, 16370 OS file writes, 8873 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 3.79 writes/s, 2.61 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)
3.04 hash searches/s, 0.71 non-hash searches/s
---
LOG
---
Log sequence number 12155308
Log flushed up to   12153749
Pages flushed up to 12146928
Last checkpoint at  12146919
0 pending log flushes, 0 pending chkp writes
6018 log i/o's done, 1.86 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 285212672
Dictionary memory allocated 128256
Buffer pool size   16024
Free buffers       15133
Database pages     825
Old database pages 324
Modified db pages  55
Percent of dirty pages(LRU & free pages): 0.345
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 693, created 132, written 9394
0.00 reads/s, 0.04 creates/s, 1.68 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: 825, 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=900, Main thread ID=140462434264832, state: sleeping
Number of rows inserted 1, updated 2189, deleted 0, read 773948
0.00 inserts/s, 0.79 updates/s, 0.00 deletes/s, 1.68 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 311
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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