我可以为不同的应用程序分离缓存吗？ [英] Can I seperate caching for different apps?
问题描述
我的公司有3个网站，我正在考虑使用缓存。我对Velocity很新，所以也许我想问的一些问题很简单。
My company has 3 web sites, wich I am thinking of using caching on. I am quite new to Velocity, so maybe some questions I want to ask are quite simple.
1。在Web服务器上安装Velocity是一个好习惯吗？例如，一个站点在两个Web服务器上运行（win 2008）。如果我在两个Web服务器上安装Velocity使其成为一个集群，这样做是否是一个好习惯？
1. Is it a good practice to install Velocity on the web server? For example, one site is running on two web servers (win 2008). If I install Velocity on both web server to make it a cluster, is it a good practice to do so?
2。我可以为每个Web应用程序设置一个硬限制，允许每个允许的缓存数量吗？
2. Can I set up a hard limit for each web application on how much cache each allowed?
3。如果我有一些东西，例如usersessiondetails存储在缓存中，我需要每天刷新到数据库（例如在下午6点之后），实现该目的的bset方式是什么？
3. If I have things for example usersessiondetails stored in cache and I need to flush out to database every day (e.g. after 6pm), what is the bset way achieving that?
4。如果我有两个节点，但不知何故一个节点关闭（例如服务停机或服务器重启等），我想我不会丢失所有缓存的东西，因为它是自动复制的？或者我必须自己设置复制？
4. If I have two nodes but somehow one node is down (e.g. service is down or server restarted etc), I think I will not lose all the cached things as it is replicated automatically? Or I have to set up replication myself?
5。是否有关于设定速度的最佳做法的文件？
5. Is there a document on best practices in setting up velocity?
非常感谢
Jerry
推荐答案
1。在Web服务器上安装Velocity是一个好习惯吗？例如，一个站点在两个Web服务器上运行（win 2008）。如果我在两个Web服务器上安装Velocity使其成为一个集群，这样做是否是一个好习惯？
1. Is it a good practice to install Velocity on the web server? For example, one site is running on two web servers (win 2008). If I install Velocity on both web server to make it a cluster, is it a good practice to do so?
- 不，缓存服务应该在他们的专用盒子上运行。
- No, Cache service should be running on their dedicated boxes.
2。我可以为每个Web应用程序设置一个硬限制，允许每个允许的缓存量吗？
2. Can I set up a hard limit for each web application on how much cache each allowed?
- 否。您可以明智地执行应用程序。您必须计算所有应用程序的要求才能进行容量规划。
- No. You can do the application wise. You will have to calculate the requirement of all the application togather for capacity planning.
3。如果我有一些东西，例如usersessiondetails存储在缓存中，我需要每天刷新到数据库（例如在下午6点之后），实现这个的bset方式是什么？
3. If I have things for example usersessiondetails stored in cache and I need to flush out to database every day (e.g. after 6pm), what is the bset way achieving that?
- 没有冲洗当前版本中提供的功能，您将编写代码将对象写入DB。
- There is not flush feature available in the current release, you will have write code to write objects to DB.
4。如果我有两个节点，但不知何故一个节点关闭（例如服务停机或服务器重启等），我想我不会丢失所有缓存的东西，因为它是自动复制的？或者我必须自己设置复制？
4. If I have two nodes but somehow one node is down (e.g. service is down or server restarted etc), I think I will not lose all the cached things as it is replicated automatically? Or I have to set up replication myself?
- 有缓存的HA功能，提供1 + 1复制。如果您只丢失了一份副本，那么您的数据仍然是安全的。
- There is HA feature for caching, that provide 1+1 replication. If you only lose one copy, your data will still be safe.
5。是否有关于设置速度的最佳做法的文件？
5. Is there a document on best practices in setting up velocity?
- http://msdn.microsoft.com/en-us/library/gg186017.aspx
- http://msdn.microsoft.com/en-us/library/gg186017.aspx
http://msdn.microsoft.com/en-us/library/ff383731.aspx
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