BLOBCache Solution now available for SharePoint Server 2019

By popular demand (well, one person), the BLOB cache solution is ready for SharePoint Server 2019! The solution brings no new features as there aren’t any new BLOB cache settings for SharePoint Server 2019.

If you’re unfamiliar with this solution, it is a full trust solution that provides an interface in Central Admin -> Manage Web Applications to manage the BLOB Cache for a Web Application rather than having to edit the web.config by hand (never do this). This means that the settings persist in the Configuration database and deploy to your Web Application should you reprovision it or add a new SharePoint Server to the farm.

When you go to Manage Web Applications, a new BLOB cache button will be in the ribbon:


You can then edit a variety of BLOB cache settings:


Including flushing the BLOB cache and restoring the BLOB cache settings to their defaults (which will also disable BLOB cache since that’s also a default).


Make sure you plan on a mini-outage to make any BLOB cache settings change. As changing anything in the web.config by hand or through automated means recycles the IIS Application Pool in use by the IIS site, there will be a brief outage as you save these settings.


Trevor Seward is a Microsoft Office Apps and Services MVP who specializes in SharePoint Server administration, hybrid scenarios, and SharePoint Online. He has been working with SharePoint for 16 years from SharePoint 2003 on up, managing environments with terabytes of content for 150,000+ user organizations. Trevor is an author of Deploying SharePoint 2016 and Deploying SharePoint 2019. You can find him on Twitter and in /r/sharepoint.