Hi,
What is the relation between IIS application pool and Database(Ex: SQL Server) for a ASP.NET application?
Does any changes in IIS application pool configuration effect database connections? or vice versa?
How does SQL Server maintain the connection pool, in conjunction with application pool?
Does it maintains single connection pool for all different asp.net applications, if they use same connection string and from same application pool? What if they are from different application pool and same connection string?
Related
I have a cloud-based application where there can be up to 5000 "worker nodes" communicating with a web server. All 5000 could be started simultaneously and once online, would call an API method to pick-up a job. This API method in turn calls a SQL Server stored procedure to get the job details and return a response to the individual node. To prevent multiple nodes getting the same job, the stored procedure puts a lock on a particular database table while it executes.
Web Server is Windows 2016 Server running IIS 10.
SQL Server is Microsoft SQL Server Standard 2017
My question is how to best manage these connections through web.config or IIS settings. As far as I know, my main levers are
Max Pool Size in web.config
Connection time-out for IIS Site
I can increase the pool size to 10,000 of course and set the connection time-out to 2 or 3 minutes but I'm not sure if there's a best practice for managing something like this.
We use service accounts to run IIS App Pools under. Then we use integrated authority in our DB connection strings.
How is this affected by running an ASP.Net core site using IIS as the proxy? Is the App Pool account passed through? Do I have to do something differently in my connection string?
Hi I'm working on an application that has 200+ SQL Azure databases and one Web App instance.
The web application is frequently calling all these databases depending on the request (only one database connection is used per request).
The problem we have seen lately is that timeouts/other connectivity issues is happening more frequently.
I'm starting to think that it could be all the tcp/connections that needs to be maintained by the connection pool. Because of Azure SQL there will be one database connection per database in the pool, they can't share connection.
Is my assumption correct or could there be anything else?
I am using ASP.NET Core with Dapper, probably on Kestrel with SQL Server reverse proxy. How is database connection pooling handling in this type of an architecture? Thanks!
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.