IIS has concept of "Application Pool" which can isolate the applications to a specific pool. Does Tomcat have the similiar one?
If I understand the IIS concept correctly then all Tomcat applications effectively run in their own application pool and cannot access other applications.
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I have multiple applications under the "Default Web Site" pool. I can restart the entire pool from IIS Manage Website options but I have many applications under that which I don't want restarted.
How can I restart just the one because we cannot see the options to do so under each application.
IIS does not provide an option to restart the single app in the app pool. So from the IIS user interface it will not be possible to restart the single app.
You could try to test the workaround suggested by Lex Li may work for you.
I have main website hosted in my IIS and under that I have multiple applications (another web apps) that run on a separate application pool. I know that if you will change some files of site that is hosted in IIS it will result into application pool recycling. However I am not sure what will happen in my scenario, from one hand they have different app pools, but from another hand application is hosted under main website.
Is it possible to deploy application that is hosted under web site without disrupting main site operation?
Thanks in advance.
No it wont. If you have your main site and applications running under different application pool, you should be fine.
Application Domains and application pool ensure isolation with respect to applications on IIS. Changes made to application will cause specific application domain to refresh and will not have an impact on other applications.
If I want to selfhost a asp.net web api application with Owin in a windows service, how can I integrate kind of a application pool recycling that IIS offers?
The answer is simple: you cannot. Application pool is an IIS feature that you can only enjoy by hosting on IIS.
I have some doubts about Application pool
Multiple application in One Application pool running under the only worker process by default
Multiple application in One Application pool We can assign different worker processes for different applications.
Above is my Understanding about Application pool and worker process
I want to clarity in these concepts, If anybody have please explain me.
Thanks,
Dnyaneshwar
I think your understanding is almost correct.
When you create a new web site in IIS it creates an application pool
for you with the same name as the web site, so in fact the default is
every web app gets its own application pool.
You can set single application pool to host multiple IIS web sites. The
effect is that all the sites sharing the app pool are hosted in the
same exe. If you restart/recycle this app pool, it will restart all the web
sites it is being used in.
You can isolate different web sites by assigning different
application pools to each web app (as mentioned IIS does this by default)
One application pool has a single worker process (w3wp.exe) by
default but but you can increase this.
Does asp run in the IIS application pool for which the website is configured? Or is the application pool only for asp.NET applications.
How do those two relate to each other, what do i need to know to understand who's doing what and where are they doing it...
An ASP Classic application will run in the application pool to which it is assigned.
ASP.NET application also run in their assigned application, hence its possible that one or more ASP.NET applications and one or more ASP applications will run in the same pool and therefore share process(es).
In IIS6 there is little relationship between the two (ASP and ASP.NET applications) they simply do their thing side-by-side. They share the same virtual memory space so if one is a hog the other is affected. Additionally if one crashes the process all other apps that are in the pool (ASP and/or ASP.NET) are affected. They also share a common ISAPI filter stack which runs on a per-process basis.
In IIS7 with the integrated pipeline things become, well, more integrated. ASP classic relies on the .NET based pipeline to deliver requests to handle.