Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variables
|
Buffer Pool
|
InnoDB Status
]
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2024-11-09 18:50:11 0x7f6045997700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 21 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 69 srv_active, 0 srv_shutdown, 195 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 110
OS WAIT ARRAY INFO: signal count 109
RW-shared spins 2, rounds 3, OS waits 1
RW-excl spins 1, rounds 30, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.50 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10058
Purge done for trx's n:o < 10058 undo n:o < 0 state: running but idle
History list length 64
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421527500438120, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421527500437248, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
1628 OS file reads, 3336 OS file writes, 506 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 6.43 writes/s, 0.57 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 2 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 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1179.85 hash searches/s, 485.69 non-hash searches/s
---
LOG
---
Log sequence number 51045686
Log buffer assigned up to 51045686
Log buffer completed up to 51045686
Log written up to 51045686
Log flushed up to 51045686
Added dirty pages up to 51045686
Pages flushed up to 51045686
Last checkpoint at 51045686
357 log i/o's done, 0.29 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 821618
Buffer pool size 8192
Free buffers 6582
Database pages 1591
Old database pages 598
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 422, not young 1839
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1433, created 2105, written 1932
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: 1591, unzip_LRU len: 0
I/O sum[361]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=376, Main thread ID=140052015539968 , state=sleeping
Number of rows inserted 360684, updated 461, deleted 0, read 986507
1560.31 inserts/s, 0.14 updates/s, 0.00 deletes/s, 3581.83 reads/s
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END OF INNODB MONITOR OUTPUT
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