<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[zhangyijun]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/SES66SES</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; SES66SES]]></copyright><item><title><![CDATA[nginx+lua+kafka实现日志统一收集汇总]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84793294</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84793294</guid><author>SES66SES</author><pubDate>Sun, 17 Apr 2016 15:53:52 +0800</pubDate><description><![CDATA[
转载请注明出处:http://hot66hot.iteye.com/blog/2291916一:场景描述对于线上大流量服务或者需要上报日志的nginx服务，每天会产生大量的日志，这些日志非常有价值。可用于计数上报、用户行为分析、接口质量、性能监控等需求。但传统nginx记录日志的方式数据会散落在各自nginx上，而且大流量日志本身对磁盘也是一种冲击。我们需要把这部分nginx日志统一收集汇总起...]]></description><category></category></item><item><title><![CDATA[Hystrix 使用与分析]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84685239</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84685239</guid><author>SES66SES</author><pubDate>Wed, 12 Nov 2014 16:36:07 +0800</pubDate><description><![CDATA[
 转载请注明出处哈:http://hot66hot.iteye.com/blog/2155036

一:为什么需要Hystrix?
在大中型分布式系统中，通常系统很多依赖(HTTP,hession,Netty,Dubbo等)，如下图:

 
在高并发访问下,这些依赖的稳定性与否对系统的影响非常大,但是依赖有很多不可控问题:如网络连接缓慢，资源繁忙，暂时不可用，服务脱机等.
如下图：...]]></description><category></category></item><item><title><![CDATA[JVM日志和参数的理解]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84603954</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84603954</guid><author>SES66SES</author><pubDate>Wed, 04 Jun 2014 12:29:17 +0800</pubDate><description><![CDATA[

  写这篇wiki的目的:最近在调整Hbase的JVM,翻了些文档和wiki,想写点东西,给自己和想了解jvm日志和参数的同 学提供些帮助.

 一:理解GC日志格式,读GC日志的方法
1:开启日志
-verbose:gc 
-XX:+PrintGCDetails 
-XX:+PrintGCDateStamps
-Xloggc:/path/gc.log
-XX:+UseGCLog...]]></description><category></category></item><item><title><![CDATA[redis-cluster研究和使用]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84551678</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84551678</guid><author>SES66SES</author><pubDate>Mon, 21 Apr 2014 12:39:50 +0800</pubDate><description><![CDATA[最近研究redis-cluster,正好搭建了一个环境,遇到了很多坑,系统的总结下,等到redis3 release出来后，换掉memCache 集群. 转载请注明出处哈:http://hot66hot.iteye.com/admin/blogs/2050676
一:关于redis cluster
1:redis cluster的现状
reids-cluster计划在redis3.0中推出，...]]></description><category></category></item><item><title><![CDATA[分享MySQL操作规范]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84382238</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84382238</guid><author>SES66SES</author><pubDate>Wed, 16 Jan 2013 17:48:25 +0800</pubDate><description><![CDATA[[size=xx-large]背景[/size]
[size=medium]
主要介绍，日常线上mysql操作，需要注意的情况。包括字段类型，索引，数据表，上线alter table等规范和注意事项。
等级划分：建议，不推荐，禁止
所有规则总有例外，要灵活，辩证看待问题[/size]

[size=xx-large]创建sql规范[/size]
[size=x-large]DATAB...]]></description><category></category></item><item><title><![CDATA[MySQL 研究innodb_max_purge_lag分享]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84382235</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84382235</guid><author>SES66SES</author><pubDate>Wed, 16 Jan 2013 17:39:17 +0800</pubDate><description><![CDATA[[size=x-large]现象：[/size]
[size=medium]线上数据库每个表分配一个ibdata,但是总的ibdata文件很大，超过10G，用相关工具查看，大部分空间都是undo_log

分析了db33的ibdata1的记过
Total number of page: 2398464: 2.4M的page * 16K = 38G
Insert Buffer Free L...]]></description><category></category></item><item><title><![CDATA[Sphinx使用及近实时索引实现]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84376016</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84376016</guid><author>SES66SES</author><pubDate>Fri, 04 Jan 2013 15:24:46 +0800</pubDate><description><![CDATA[[size=x-large]Sphinx介绍[/size]

[size=large]  Sphinx是由一个开源的全文检索引擎，功能类似Lucune，用C++编写，可为其他应用提供高速、低空间占用、高结果相关度的全文搜索功能。Sphinx可以非常容易的与SQL数据库和脚本语言集成，当前系统内置MySQL和PostgreSQL数据库数据源的支持，也支持从标准输入读取特定格式的XML数据，通过修...]]></description><category></category></item><item><title><![CDATA[如何建设好的工程师文化]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84361459</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84361459</guid><author>SES66SES</author><pubDate>Tue, 27 Nov 2012 17:09:08 +0800</pubDate><description><![CDATA[[size=large]写得非常好，值得细细品味。[/size]

英文原文：[url]http://www.quora.com/Software-Engineering/What-makes-a-good-engineering-culture[/url]
========================  分割线 ==========================

[size=m...]]></description><category></category></item><item><title><![CDATA[java测试工具-jmeter使用]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84359154</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84359154</guid><author>SES66SES</author><pubDate>Wed, 21 Nov 2012 16:54:55 +0800</pubDate><description><![CDATA[[size=x-large]JMeter介绍[/size]
[size=large]JMeter是Apache下一个类似LoadRunner的开源性能测试项目，可用用来对静态的和动态的资源（如：files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers）的性能进行测试.[/size]

[s...]]></description><category></category></item><item><title><![CDATA[mysql中常用插入数据的语句说明:[insert into,replace into,insert ignore]]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84358609</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84358609</guid><author>SES66SES</author><pubDate>Tue, 20 Nov 2012 13:53:33 +0800</pubDate><description><![CDATA[[size=large]mysql中insert into,replace into,insert ignore into,on duplicate key update用法区别[/size]： 

[size=medium]insert into表示插入数据，数据库会检查唯一约束，如果出现重复会报错。语句后加入on duplicate key update发现重复时变为更新操作,在原有记录基...]]></description><category></category></item><item><title><![CDATA[项目中使用Quartz集群分享]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84356849</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84356849</guid><author>SES66SES</author><pubDate>Thu, 15 Nov 2012 14:00:33 +0800</pubDate><description><![CDATA[[size=x-large]在公司分享了Quartz，发布出来，希望大家讨论补充.[/size]

[size=x-large]CRM使用Quartz集群分享
一:CRM对定时任务的依赖与问题
二:什么是quartz,如何使用,集群,优化
三:CRM中quartz与Spring结合使用[/size]

[size=large]1:CRM对定时任务的依赖与问题[/size]
1)依赖...]]></description><category></category></item><item><title><![CDATA[Mysql中SQL使用总结(一)]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84127375</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84127375</guid><author>SES66SES</author><pubDate>Wed, 11 Jan 2012 16:05:31 +0800</pubDate><description><![CDATA[
现在的工作环境跟MySQL打的交道比较多,把平时工作中遇到的有意思SQL的部分总结一下.

知识来源：看书,工作总结,官方文档... 

从哪开始呢，先从基本结构开始吧:ok let's go.

1:先看MySQL整体模块图:

[img]http://dl.iteye.com/upload/attachment/0061/9866/ad39849f-091a-3083-8d...]]></description><category></category></item><item><title><![CDATA[How to select the first least max top N rows from each group in SQL]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/84050790</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/84050790</guid><author>SES66SES</author><pubDate>Thu, 20 Oct 2011 11:55:16 +0800</pubDate><description><![CDATA[[size=x-large]从分组中选择极值查询/前N项查询 是经常会遇到的问题 ,下面通过简单举例展示这种SQL的写法
[/size]
举例表
[table]
| type | variety | price |
| apple | gala | 2.79 |
| apple | fuji | 0.24 |
| apple | limbertwig | 2.87 |
| oran...]]></description><category></category></item><item><title><![CDATA[上传一份PL/SQL Guides and reference中译版]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/83838930</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/83838930</guid><author>SES66SES</author><pubDate>Sat, 12 Feb 2011 17:14:03 +0800</pubDate><description><![CDATA[在这里首先感谢优快云的KNIGHTRCOM这位仁兄。
发一份PL/SQL Guides and reference中译版
想学习PL/SQL的同学可以download下来看看
如果对大家有用就给个良好吧 :D 。。。...]]></description><category></category></item><item><title><![CDATA[基于kindeditor3.4的上传功能的JAVA实现]]></title><link>https://blog.youkuaiyun.com/SES66SES/article/details/83557565</link><guid>https://blog.youkuaiyun.com/SES66SES/article/details/83557565</guid><author>SES66SES</author><pubDate>Mon, 22 Feb 2010 12:03:56 +0800</pubDate><description><![CDATA[最近公司要换图文混排 ，发现kindEditor非常不错，下载[url]http://www.kindsoft.net/[/url]下来用了用，发现上传功能只有php的，郁闷。。。
没办法自己写一个。。。
[quote]upload.jsp[/quote]
[code=&quot;java&quot;]


 0) {
					fos.write(buffer, 0, len);
				}
		...]]></description><category></category></item></channel></rss>