Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Muuttujat
|
Puskurivaranto
|
InnoDB:n tila
]
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2024-09-19 18:18:45 0x7f37f8092700 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: 69 srv_active, 0 srv_shutdown, 107 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 131
OS WAIT ARRAY INFO: signal count 131
RW-shared spins 28, rounds 56, OS waits 28
RW-excl spins 7, rounds 210, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 11540
Purge done for trx's n:o < 11392 undo n:o < 0 state: running but idle
History list length 14
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421353520220776, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421353520219904, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 11539, ACTIVE (PREPARED) 0 sec
mysql tables in use 1, locked 1
1 lock struct(s), heap size 1136, 0 row lock(s), undo log entries 1
MySQL thread id 1091, OS thread handle 139878361868032, query id 18117 192.168.30.20 root waiting for handler commit
INSERT INTO `gates` VALUES ('153', '1569', '-62.57', '129.31', '1007.2', '0', '0', '90', '-62.57', '129.31', '1007.2', '0', '0', '180', '7', '30', '20', '1614', '3', '1 or 59', 'Nadr', '2014-11-29 19:13:45', 'Training Grounds', '4', null, null)
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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: 1; buffer pool: 0
1317 OS file reads, 5744 OS file writes, 2946 OS fsyncs
0.11 reads/s, 12544 avg bytes/read, 98.47 writes/s, 53.02 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 1 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 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
649.14 hash searches/s, 381.81 non-hash searches/s
---
LOG
---
Log sequence number 52863157
Log buffer assigned up to 52863157
Log buffer completed up to 52863157
Log written up to 52863157
Log flushed up to 52863147
Added dirty pages up to 52863157
Pages flushed up to 50965606
Last checkpoint at 50965606
4360 log i/o's done, 81.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 1275805
Buffer pool size 8192
Free buffers 6571
Database pages 1606
Old database pages 572
Modified db pages 476
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1276, not young 442
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1204, created 414, written 1158
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 5 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1606, unzip_LRU len: 0
I/O sum[874]:cur[12], 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=363, Main thread ID=139878035826432 , state=sleeping
Number of rows inserted 2914, updated 1584, deleted 0, read 332375
45.66 inserts/s, 15.95 updates/s, 0.00 deletes/s, 1642.46 reads/s
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END OF INNODB MONITOR OUTPUT
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