iis

SQL Server关于AlwaysOn的理解

醉酒当歌 提交于 2020-12-06 06:38:48
(一)SQL Server-AlwaysOn 技术:SQL Server AlwaysOn 即“全面的高可用性和灾难恢复解决方案” 1、数据库级可用性-只读副本:SQL Server 2012-4个,SQL Server 2014-8个 a、每个节点都安装了本地的 SQL Server,可以不使用共享存储,但是数据库在每个节点上的磁盘文件夹必须是一致的。 b、主节点可读可写,其它辅助节点只可读。 c、全部节点都加入一个 Windows Fail-over Cluster 中。 可以为AlwaysOn可用性组配置一个侦听器(虚拟计算机)。客户端如果访问这个侦听器则可以实现read/write;客户端如果访问指定的辅助节点,可能实现read/write(如果该节点是主节点),或者只能read-only。 负载分离: a、可以将一部分的read only请求发送到辅助副本: 1)第一种:修改应用程序,在客户端实现。例如,指定将read/write都指向AlwaysOn可用性组的侦听器(不赞成指向某个节点,因为无法确保某个节点可以write),将部分read only请求指向辅助副本。 2)第二种:为AlwaysOn可用性组配置只读路由: 脚本如下: ALTER AVAILABILITY GROUP [AG1] MODIFY REPLICA ON N'COMPUTER01' WITH

ASP.Net MVC4+Memcached+CodeFirst实现分布式缓存

佐手、 提交于 2020-12-06 06:08:35
原文: ASP.Net MVC4+Memcached+CodeFirst实现分布式缓存        ASP.Net MVC4+Memcached+CodeFirst实现分布式缓存 part 1:给我点时间,允许我感慨一下2016年   正好有时间,总结一下最近使用的一些技术,也算是为2016年画上一个完美的句号,回顾2016年,感受颇多,感恩那些帮助我的人。展望2017年,我相信一定会遇到一个更好的自己。附上自己喜欢的一张图片:    好了~~~装逼结束,下面开始说说如何实现分布式缓存在项目中的应用。 part2:先分析以下需求   软件架构从单机到分布式遇到的问题(当然这是一个很深的问题,由于能力有限今天就说说如何实现用户信息的分布式存储的问题),也就是:走向分布式第一步:多台机器共享用户登录状态,该如何实现?例如:现在有三台机器组成了一个web的应用集群,其中一台机器用户登录,然后其他另外两台机器共享登录状态?具体请看下面的图示: 问题:如果有一个用户第一次登陆的时候,负载均衡把该用户分配到IIS1这台服务器上,该用户的信息就会被保留到IIS1这台服务器上,但是如果该用户再次访问其他的web资源的时候,被分配到IIS2上,这是IIS2中,没有改用户的信息,会发生什么?该怎么解决?该选用什么介质来保存状态比较合适? 从图中可以看出就是保存对应用户的信息

Issue with Listening at an Endpoint connecting to WCF from net.tcp protocol

血红的双手。 提交于 2020-12-06 03:02:45
问题 This weird Error was appearing from one day before posting this post. Previously it was working fine, but not now. At one movement restarting the system, the error disappears and able to access the application. and after again rebooting the system the error begins to appear without knowing the root cause. Enabled Protocols: net.tcp,http I could able to browse the below link http://localhost/TAServices/AuthenticationManager.svc http://username.domainname.com/TAServices/AuthenticationManager

Issue with Listening at an Endpoint connecting to WCF from net.tcp protocol

穿精又带淫゛_ 提交于 2020-12-06 03:02:27
问题 This weird Error was appearing from one day before posting this post. Previously it was working fine, but not now. At one movement restarting the system, the error disappears and able to access the application. and after again rebooting the system the error begins to appear without knowing the root cause. Enabled Protocols: net.tcp,http I could able to browse the below link http://localhost/TAServices/AuthenticationManager.svc http://username.domainname.com/TAServices/AuthenticationManager

IIS 403.14

烂漫一生 提交于 2020-12-04 05:36:14
IIS 403.14 - Forbidden错误解决方法 参考文章: (1)IIS 403.14 - Forbidden错误解决方法 (2)https://www.cnblogs.com/wsl2011/p/4179477.html 备忘一下。 来源: oschina 链接: https://my.oschina.net/stackoom/blog/4773575

Access-Control-Allow-Origin设置跨域

别说谁变了你拦得住时间么 提交于 2020-12-03 06:01:14
我来自己写一下答案,以给后来的朋友一点思路和建议: 1,首先把Access-Control-Allow-Origin设置成*是不妥的,自己的接口服务器不能允许所有人都可以访问。 2,具体哪里可以设置Access-Control-Allow-Origin呢, a,web.config中可以设置; b,需要在IIS服务器站点的功能视图中设置HTTP响应标头; (a,b可以参考: http://www.th7.cn/Program/net... ) c,通过nginx代理服务器进行设置; d,修改接口api,在每个api上添加响应头; https://docs.microsoft.com/en... e,拦截器方式(是d的一种封装) http://ask.csdn.net/questions... 或 http://stackoverflow.com/ques... ab只能设置一个域名或*, c需要更多知识背景,配置更多环境,相对windows Server来说不太适合 d,是微软给出的最终解决方案,但是不是最佳方案, e是对d的一种封装,写一个拦截器,应用到所有控制器上,在拦截器里控制来访域名,动态设置Access-Control-Allow-Origin的值. 根据自己情况选择合适的解决方案,这里我选择了e方案 ie9以下的支持方案: A CORS proxy for IE9

IIS 10 Application Pool fall a sleep

痞子三分冷 提交于 2020-12-02 05:59:49
问题 We have ASP.NET Core application used internally which are used during office hours and a batch that should be processed 3 AM every morning which is scheduled by HangFire like this: RecurringJob.AddOrUpdate( () => MyBatch(), "0 0 3 1/1 *"); The problem is that the Application Pool goes to sleep and the batch isn’t processed if the site isn’t manually started (by going to the website usually). I have searched SO and tampered with these settings in the Application Pool but with no success: Some

IIS 10 Application Pool fall a sleep

蹲街弑〆低调 提交于 2020-12-02 05:59:10
问题 We have ASP.NET Core application used internally which are used during office hours and a batch that should be processed 3 AM every morning which is scheduled by HangFire like this: RecurringJob.AddOrUpdate( () => MyBatch(), "0 0 3 1/1 *"); The problem is that the Application Pool goes to sleep and the batch isn’t processed if the site isn’t manually started (by going to the website usually). I have searched SO and tampered with these settings in the Application Pool but with no success: Some

IIS 10 Application Pool fall a sleep

六月ゝ 毕业季﹏ 提交于 2020-12-02 05:59:07
问题 We have ASP.NET Core application used internally which are used during office hours and a batch that should be processed 3 AM every morning which is scheduled by HangFire like this: RecurringJob.AddOrUpdate( () => MyBatch(), "0 0 3 1/1 *"); The problem is that the Application Pool goes to sleep and the batch isn’t processed if the site isn’t manually started (by going to the website usually). I have searched SO and tampered with these settings in the Application Pool but with no success: Some