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MySql数据库3【优化3】缓存设置的优化
1、表缓存相关参数:table_open_cache 指定表缓存的大小。每当MySQL访问一个表时,如果在表缓冲区中还有空间,该表就被打开并放入其中,这样可以更快地访问表内容。通过检查峰值时间的状态值,如果发现open_tables等于table_cache,并且opened_tables在不断增....
分类:数据库   时间:2014-09-15 03:17:18    阅读次数:303
测试工程执行,遇到sql-mapconfig-2.dtd文件不存在的问题
[persistence/sql-map-.xml]; nested exception is java.io.FileNotFoundException: class path resource [sql-map-config-2.dtd] cannot be opened because it does not exist at org.springframework.beans.fac...
分类:数据库   时间:2014-09-10 12:49:40    阅读次数:402
The scissor lift can only be raised
This may be in the form of their individual website or in the websites of their distributors. Some time ago, when HTML newsletters couldnt be read by ...
分类:其他好文   时间:2014-09-02 10:13:34    阅读次数:282
domino用户foxmail接收邮件时报“Maildrop opened for exclusive access by another user”的解决办法
【背景】 近期,不少用户foxmail接收domino系统的邮件时报“Maildrop opened for exclusive access by another user”。 【解决办法】 在notes.ini增加参数POP_SESSION_TIMEOUT=10问题不在出现(可以在控制台输入 set config POP_SESSION_TIMEOUT=10)...
分类:数据库   时间:2014-08-21 19:29:54    阅读次数:1529
Xcode 工程文件打开不出来, cannot be opened because the project file cannot be parsed.
svn更新代码后,打开xcode工程文件,会出现 xxx..xcodeproj cannot be opened because the project file cannot be parsed.因为.xcodeproj工程文件冲突了,然后还是会强制更新,内部文件出现了冲突,所以解析不了文件。会出...
分类:其他好文   时间:2014-08-17 11:35:52    阅读次数:227
HDU 1908 Double Queue<Set>
Problem Description The new founded Balkan Investment Group Bank (BIG-Bank) opened a new office in Bucharest, equipped with a modern computing environment provided by IBM Romania, and using modern in...
分类:其他好文   时间:2014-08-14 23:56:36    阅读次数:520
Win8.1想要卸载openSUSE出现问题(未解决)
因为在蜥蜴上的Python被玩坏了,所以想要卸载重装。结果在Windows下的EasyBCD打开提示错误:The Boot Configuration Data Store Could Not Be Opened - The System Cannot Find The File Specified...
分类:Windows程序   时间:2014-08-14 23:46:56    阅读次数:348
java.io.FileNotFoundException: class path resource [XXXXX.xml] cannot be opened
java.io.FileNotFoundException: class path resource [beans.xml] cannot be opened because it does not exit. 在用maven管理的spring项目中做单元测试时候,加载不了spring的配置文件。出现该问题的原因是,用maven创建的项目,必须把spring的配置文件beans.xml或者app...
分类:编程语言   时间:2014-07-28 15:56:13    阅读次数:187
HDU 2844 Coins
Problem Description Whuacmers use coins.They have coins of value A1,A2,A3...An Silverland dollar. One day Hibix opened purse and found there were some coins. He decided to buy a very nice watch in...
分类:其他好文   时间:2014-07-20 23:01:28    阅读次数:271
windows 2003 远程桌面 连接输入账号密码后,只能看见蓝色屏幕和鼠标
具体解决方案参考的http://www.tomshardware.com/forum/171045-46-remote-desktop-connection-blank-desktopto solve it I opened two windows thru remote desktopthen i...
分类:Windows程序   时间:2014-07-01 22:11:56    阅读次数:545
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