Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Promjenljive | Buffer Pool | InnoDB status ]

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2024-09-19 19:16:39 0x7f99280f8700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 38 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 29 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 37
OS WAIT ARRAY INFO: signal count 37
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 2, rounds 60, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9876
Purge done for trx's n:o < 9875 undo n:o < 0 state: running but idle
History list length 93
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421771420949968, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421771420949096, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421771420948224, 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
1194 OS file reads, 492 OS file writes, 168 OS fsyncs
30.61 reads/s, 20524 avg bytes/read, 12.62 writes/s, 4.31 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 0 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
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 7 buffer(s)
1757.37 hash searches/s, 739.64 non-hash searches/s
---
LOG
---
Log sequence number          50970788
Log buffer assigned up to    50970788
Log buffer completed up to   50970788
Log written up to            50970788
Log flushed up to            50970788
Added dirty pages up to      50970788
Pages flushed up to          50970788
Last checkpoint at           50970788
152 log i/o's done, 3.90 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 608945
Buffer pool size   8192
Free buffers       6937
Database pages     1241
Old database pages 478
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 1099, created 142, written 292
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 995 / 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: 1241, 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=372, Main thread ID=140295933998848 , state=sleeping
Number of rows inserted 26, updated 360, deleted 0, read 131517
0.68 inserts/s, 9.47 updates/s, 0.00 deletes/s, 3460.88 reads/s
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END OF INNODB MONITOR OUTPUT
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