Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

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2025-06-08 03:07:15 0x1418 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 43 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 39448 srv_active, 0 srv_shutdown, 68596 srv_idle
srv_master_thread log flush and writes: 108044
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 1396773
OS WAIT ARRAY INFO: signal count 398266
RW-shared spins 42728, rounds 1281494, OS waits 4343
RW-excl spins 408, rounds 12696, OS waits 110
RW-sx spins 1, rounds 30, OS waits 0
Spin rounds per wait: 29.99 RW-shared, 31.12 RW-excl, 30.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 159351
Purge done for trx's n:o < 159351 undo n:o < 0 state: running
History list length 17
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283046290211608, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290207440, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290203272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290199104, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290194936, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290190768, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290186600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290178264, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290174096, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290182432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
71678 OS file reads, 460337 OS file writes, 298005 OS fsyncs
1.44 reads/s, 16384 avg bytes/read, 6.37 writes/s, 3.65 fsyncs/s
-------------------------------------
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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
3.74 hash searches/s, 24.30 non-hash searches/s
---
LOG
---
Log sequence number 77852903
Log flushed up to   77852903
Pages flushed up to 77851776
Last checkpoint at  77851314
0 pending log flushes, 0 pending chkp writes
172242 log i/o's done, 1.81 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 135216
Buffer pool size   1003
Free buffers       743
Database pages     257
Old database pages 0
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.300
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 71621, created 2239, written 246929
1.44 reads/s, 0.07 creates/s, 3.93 writes/s
Buffer pool hit rate 971 / 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: 257, unzip_LRU len: 0
I/O sum[270]:cur[1], 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=5172, Main thread ID=4692, state: sleeping
Number of rows inserted 105, updated 48928, deleted 3, read 1445904
0.00 inserts/s, 0.74 updates/s, 0.00 deletes/s, 33.88 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 35233
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
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