Mecanismos de armazenamento

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Variáveis | Pool de buffer | Estado do InnoDB ]

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2026-02-13 06:39:35 0x7f514ab98700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 40 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 57 srv_active, 0 srv_shutdown, 469 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 121
OS WAIT ARRAY INFO: signal count 125
RW-shared spins 25, rounds 30, OS waits 7
RW-excl spins 2, rounds 38, OS waits 8
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 1.20 RW-shared, 19.00 RW-excl, 30.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10136
Purge done for trx's n:o < 10130 undo n:o < 0 state: running but idle
History list length 37
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421463159405160, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421463159404288, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 10135, ACTIVE 0 sec updating or deleting
mysql tables in use 1, locked 1
2 lock struct(s), heap size 1136, 1 row lock(s)
MySQL thread id 2875, OS thread handle 139987119769344, query id 291764 192.168.30.20 root checking permissions
SELECT *, `TABLE_SCHEMA`       AS `Db`, `TABLE_NAME`         AS `Name`, `TABLE_TYPE`         AS `TABLE_TYPE`, `ENGINE`             AS `Engine`, `ENGINE`             AS `Type`, `VERSION`            AS `Version`, `ROW_FORMAT`         AS `Row_format`, `TABLE_ROWS`         AS `Rows`, `AVG_ROW_LENGTH`     AS `Avg_row_length`, `DATA_LENGTH`        AS `Data_length`, `MAX_DATA_LENGTH`    AS `Max_data_length`, `INDEX_LENGTH`       AS `Index_length`, `DATA_FREE`          AS `Data_free`, `AUTO_INCREMENT`     AS `Auto_increment`, `CREATE_TIME`        AS `Create_time`, `UPDATE_TIME`        AS `Update_time`
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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
1654 OS file reads, 2205 OS file writes, 588 OS fsyncs
0.22 reads/s, 12970 avg bytes/read, 1.15 writes/s, 0.85 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 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
5515.34 hash searches/s, 4531.81 non-hash searches/s
---
LOG
---
Log sequence number          51044277
Log buffer assigned up to    51044277
Log buffer completed up to   51044277
Log written up to            51044277
Log flushed up to            51043944
Added dirty pages up to      51043249
Pages flushed up to          51043249
Last checkpoint at           51043249
444 log i/o's done, 0.49 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 841260
Buffer pool size   8192
Free buffers       6547
Database pages     1624
Old database pages 602
Modified db pages  7
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 604, not young 2217
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1473, created 2026, written 732
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: 1624, unzip_LRU len: 0
I/O sum[60]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
1 read views open inside InnoDB
Process ID=364, Main thread ID=139987674924800 , state=sleeping
Number of rows inserted 349176, updated 463, deleted 0, read 4690463
0.05 inserts/s, 0.17 updates/s, 0.00 deletes/s, 6604.51 reads/s
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END OF INNODB MONITOR OUTPUT
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