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최근에 갑자기 로그에 Dead Lock 관련 메시지가 찍히고 있어서 한 번 살펴봤습니다
내공이 낮아 아직 해석은 못하기에 고수님들께 여쭤봅니다
뭔가 문제가 있는지요?
문제가 있다면 설정에서 어떤 내용을 적절히 손봐주면 될까요?
| InnoDB | |
=====================================
090622 21:32:54 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 41 seconds
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 351, signal count 351
Mutex spin waits 0, rounds 794, OS waits 1
RW-shared spins 690, OS waits 344; RW-excl spins 7, OS waits 6
------------
TRANSACTIONS
------------
Trx id counter 0 8862704
Purge done for trx's n:o < 0 8862669 undo n:o < 0 0
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 0 8862591, not started, process no 11215, OS thread id 1166879040
MySQL thread id 30, query id 2848 localhost root
SHOW ENGINE INNODB STATUS
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FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (write thread)
Pending normal aio reads: 0, aio writes: 0,
ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0
Pending flushes (fsync) log: 0; buffer pool: 0
9869 OS file reads, 129 OS file writes, 101 OS fsyncs
64.07 reads/s, 16384 avg bytes/read, 0.51 writes/s, 0.41 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 0, seg size 2,
0 inserts, 0 merged recs, 0 merges
Hash table size 2212699, node heap has 2 buffer(s)
0.00 hash searches/s, 494.84 non-hash searches/s
---
LOG
---
Log sequence number 1 2710941894
Log flushed up to 1 2710941894
Last checkpoint at 1 2710941894
0 pending log writes, 0 pending chkp writes
82 log i/o's done, 0.32 log i/o's/second
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BUFFER POOL AND MEMORY
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Total memory allocated 1228837308; in additional pool allocated 11060992
Dictionary memory allocated 176400
Buffer pool size 65536
Free buffers 34229
Database pages 31305
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages read 31305, created 0, written 51
64.07 reads/s, 0.00 creates/s, 0.20 writes/s
Buffer pool hit rate 1000 / 1000
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
1 read views open inside InnoDB
Main thread process no. 11215, id 1166076224, state: sleeping
Number of rows inserted 0, updated 30, deleted 0, read 12417040
0.00 inserts/s, 0.12 updates/s, 0.00 deletes/s, 82242.38 reads/s
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END OF INNODB MONITOR OUTPUT
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