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如何大幅优化solr的查询性能(转)
提升软件性能,通常喜欢去调整各种启动参数,这没有多大意义,小伎俩。 性能优化要从架构和策略入手,才有可能得到较大的收益Solr的查询是基于Field的,以Field为基本单元,例如一个文章站要索引classArticle{ String title; String content; String t...
分类:其他好文   时间:2014-05-31 06:15:39    阅读次数:226
kettle--组件(2)--计算器
组件如下:对计算类型的说明如下:The table below contains descriptions associated with the calculator step:FunctionDescriptionRequired fieldsSet field to constant ACre...
分类:其他好文   时间:2014-05-28 04:19:05    阅读次数:1256
Brute-forced Euclid Distance Transform
Sepearable 2D EDT, going to extend to 3D in order to calculate the Signed Distance Function(Field)Cost 0.75s to generate the SDF at 768^2
分类:其他好文   时间:2014-05-28 03:13:14    阅读次数:276
kettle--组件(1)--值映射
组件:值映射如下如所示:首先,给出官方给出的文档:个人理解:Target field name:可以理解为将source column的字段复制为另一个target column的名字。Default upon non-matching:就是将target column的所有值(除去null),都替...
分类:其他好文   时间:2014-05-27 16:28:38    阅读次数:767
C++自定义数据类型
C++中有以下几种自定义数据类型方式:typedef、union、enumtypedeftypedef只是用于重命名一种已有的数据类型。typedef char C; //C c即char c typedef char field [50]; //field...
分类:编程语言   时间:2014-05-26 20:20:40    阅读次数:235
2014辽宁ACM省赛 Distance
问题 E: Distance 时间限制: 1 Sec  内存限制: 128 MB 提交: 48  解决: 12 [提交][状态][论坛] 题目描述 There is a battle field. It is a square with the side length 100 miles, and unfortunately we have two comrades who get ...
分类:其他好文   时间:2014-05-26 05:57:27    阅读次数:325
xml cannot be resolved or is not a field
loadHeadersFromResource(R.xml.settings_headers, headers); error: xml cannot be resolved or is not a field, but res/xml/settings_headers.xml exists. Every xml file will have its own ID in R.java,...
分类:其他好文   时间:2014-05-25 16:19:23    阅读次数:206
HDU-1007-Quoit Design
Problem Description Have you ever played quoit in a playground? Quoit is a game in which flat rings are pitched at some toys, with all the toys encircled awarded. In the field of Cyberground, the ...
分类:其他好文   时间:2014-05-25 11:13:53    阅读次数:245
POJ1753——Flip Game
Flip GameDescriptionFlip game is played on a rectangular 4x4 field with two-sided pieces placed on each of its 16 squares. One side of each piece is w...
分类:其他好文   时间:2014-05-25 03:21:52    阅读次数:255
android_常用UI控件_01_TextView2
显示图片和文字MainActivity.javapackagecom.example.android_textview_showqqface; importjava.lang.reflect.Field; importandroid.os.Bundle; importandroid.app.Activity; importandroid.graphics.Color; importandroid.graphics.drawable.Drawable; importandroid.text.H..
分类:移动开发   时间:2014-05-24 16:41:39    阅读次数:486
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