?You Have to Understand Hardware,TooKamal WickramanayakeFoR MAny SoFTWARE ARCHiTECTS, hardware capacity planning is a topic that lies beyond their comfort zone, yet it remains an important part of the...
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其他好文 时间:
2015-09-01 10:50:03
阅读次数:
158
com.mysql.jdbc.exceptions.MySQLNonTransientConnectionException: Too many connections at com.mysql.jdbc.SQLError.createSQLException(SQLError.jav...
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数据库 时间:
2015-08-31 14:57:56
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432
Oracle数据库的经典问题 snapshot too old是什么原因引起的ORACLE经典错误求解:ORA-1555错误(Snapshot too old ) - ...书上说是因为the rollback image need for read consistency has prbably ...
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数据库 时间:
2015-08-31 01:03:20
阅读次数:
314
在机器学习中,导致overfitting的原因之一是noise,这个noise可以分为两种,即stochastic noise,随机噪声来自数据产生过程,比如测量误差等,和deterministic noise,确定性噪声来自added complexity,即model too complex。这两种类型的造成来源不同,但是对于学习的影响是相似的...
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其他好文 时间:
2015-08-27 16:51:58
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120
Problem Description
"Well, it seems the first problem is too easy. I will let you know how foolish you are later." feng5166 says.
"The second problem is, given an positive integer N, we define an ...
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其他好文 时间:
2015-08-26 12:04:53
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162
近来又学了学Toolbar,发现国外的文字文档比国内的还少,不知道是我搜索方式有误还是咋的,国外的视屏教学又听不懂,哎,看来以后还是要硬着头皮听,看下去。国内的文档好的挺多的,这里我推荐一个国外,一个香港的。一篇台湾博主的:www.blog.mosil.biz/2014/10/android-too...
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移动开发 时间:
2015-08-21 13:12:34
阅读次数:
248
nginx+php-fpm+mysql的网站,访问nginx的某个页面,报502 GateWay的错误,一般见到此错误,可以判断是php-fpm的问题,而不是nginx的问题。通过监控nginx的错误日志,发现出现如下的错误:upstream sent too big header while re...
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其他好文 时间:
2015-08-20 23:54:53
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345
Being a programmer, you like arrays a lot. For your birthday, your friends have given you an array
a consisting of n
distinct integers.
Unfortunately, the size of a is too small. You want a bigger ...
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其他好文 时间:
2015-08-20 21:01:57
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278
Ignatius and the Princess III
Problem Description
"Well, it seems the first problem is too easy. I will let you know how foolish you are later." feng5166 says.
"The second problem is, given...
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其他好文 时间:
2015-08-20 16:55:59
阅读次数:
121
最近在做获取验证码的功能,考虑到优良的用户体验,决定制作一个拥有倒计时提示的Button按钮,在网上查了一些资料,很是简单的就能实现,我写了一个小Demo,大家可以应用到自己的项目中。1.activity_main.xml:<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:too...
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移动开发 时间:
2015-08-20 15:18:04
阅读次数:
219