innodb中的REDO解析(五)
ex e00000013a0110; asc : ;;
*** WE ROLL BACK TRANSACTION (2)
------------
TRANSACTIONS
------------
Trx id counter 11F46
Purge done for trx's n:o < 11F35 undo n:o < 0
History list length 1433
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 11F45, not started
MySQL thread id 79, OS thread handle 0x33d62600, query id 34168 localhost root
show engine innodb status
---TRANSACTION 11F36, not started
MySQL thread id 77, OS thread handle 0x33d61e80, query id 4118 localhost root
---TRANSACTION 11F2B, not started
MySQL thread id 75, OS thread handle 0x33d61d40, query id 4077 192.168.0.69 root
---TRANSACTION 0, not started
MySQL thread id 74, OS thread handle 0x33d61fc0, query id 4070 192.168.0.69 root
---TRANSACTION 0, not started
MySQL thread id 23, OS thread handle 0x33d62380, query id 114 192.168.0.69 root
---TRANSACTION 11F40, ACTIVE 5190 sec
3 lock struct(s), heap size 320, 2 row lock(s)
MySQL thread id 80, OS thread handle 0x33d62740, query id 4152 localhost root
--------
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 (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (write thread)
Pending normal aio reads: 0 [0, 0, 0, 0] , aio writes: 0 [0, 0, 0, 0] ,
Pending flushes (fsync) log: 0; buffer pool: 0
691 OS file reads, 1925 OS file writes, 1012 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 553253, node heap has 6 buffer(s)
0.00 hash searches/s, 0.00 non-hash searches/s
---
LOG
---
Log sequence number 594751037
Log flushed up to 594751037
Last checkpoint at 594246629
0 pending log writes, 0 pending chkp writes
651 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total memory allocated 135987200; in additional pool allocated 0
Dictionary memory allocated 281610
Buffer pool size 8192
Free buffers 4305
Database pages 3881
Old database pages 1418
Modified d b pages 31
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 5, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 633, created 3248, written 5875
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
No buffer pool page gets since the last printout
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 3881, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------