﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-大胃王之Blog-文章分类-advance issue</title><link>http://www.blogjava.net/davidwang/category/40946.html</link><description /><language>zh-cn</language><lastBuildDate>Mon, 20 Jul 2009 14:11:14 GMT</lastBuildDate><pubDate>Mon, 20 Jul 2009 14:11:14 GMT</pubDate><ttl>60</ttl><item><title>Server affinity- session issue</title><link>http://www.blogjava.net/davidwang/articles/287449.html</link><dc:creator>大胃王的BLOG</dc:creator><author>大胃王的BLOG</author><pubDate>Mon, 20 Jul 2009 04:53:00 GMT</pubDate><guid>http://www.blogjava.net/davidwang/articles/287449.html</guid><wfw:comment>http://www.blogjava.net/davidwang/comments/287449.html</wfw:comment><comments>http://www.blogjava.net/davidwang/articles/287449.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.blogjava.net/davidwang/comments/commentRss/287449.html</wfw:commentRss><trackback:ping>http://www.blogjava.net/davidwang/services/trackbacks/287449.html</trackback:ping><description><![CDATA[Server affinity. If your application is to be deployed into a clustered environment,then your clients will suffer from server affinity. This occurs because a user’s session is unique to each server, so if a user connects to another server, he will receive a wholenew session. Server affinity prevents failover (http://en.wikipedia.org/wiki/Failover), thus reducing your ability to load balance within a cluster.

1)There are solutions for session replication in clustered environment, but they are typically very expensive and complex, and they always incur some performance overhead.<img src ="http://www.blogjava.net/davidwang/aggbug/287449.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/davidwang/" target="_blank">大胃王的BLOG</a> 2009-07-20 12:53 <a href="http://www.blogjava.net/davidwang/articles/287449.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>