Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ متغيرات | Buffer Pool | وضع InnoDB ]

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2025-09-17 00:36:05 0x7f0cc00c9700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 13 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 10 srv_active, 0 srv_shutdown, 307 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 20
OS WAIT ARRAY INFO: signal count 20
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 1, rounds 21, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 21.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9777
Purge done for trx's n:o < 9775 undo n:o < 0 state: running but idle
History list length 60
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421167739415144, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421167739414272, 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
1307 OS file reads, 334 OS file writes, 129 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 30 buffer(s)
60.92 hash searches/s, 6.69 non-hash searches/s
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LOG
---
Log sequence number          50954959
Log buffer assigned up to    50954959
Log buffer completed up to   50954959
Log written up to            50954959
Log flushed up to            50954959
Added dirty pages up to      50954959
Pages flushed up to          50954959
Last checkpoint at           50954959
64 log i/o's done, 0.00 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 519150
Buffer pool size   8192
Free buffers       6784
Database pages     1338
Old database pages 513
Modified db pages  0
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 1196, created 142, written 211
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: 1338, 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=376, Main thread ID=139692253312768 , state=sleeping
Number of rows inserted 4, updated 327, deleted 0, read 214455
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 117.14 reads/s
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END OF INNODB MONITOR OUTPUT
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