A day with .Net

My day to day experince in .net

Instance members of an ActionFilter attribute is not thread safe – MVC

Posted by vivekcek on June 26, 2016

I was trying to inject a dependency to my filter attribute via Ninject’s property injection.The injected instance was using a database connection too.
And one of the ajax polling call was hitting this attribute every 10 seconds.
Strange i got some thread concurrency issue and site went down.
Later i found that in MVC for each request a controller is created, but for each request the same instance of filter attribute is reused.

You can test this via putting break points in the constructor of controller and attribute.




Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s