I have SSIS Projects taking a long time to open with packages with a large number of data flows. Is there a way to turn off validation of metadata when a package opens? Turn off validation during execution on SSIS Service (after previously validated in dev)? Or be able to control when validation takes place in general?
In my one package (1 of 5) I have 43 data flows (with a single source to target mapping) in 4 sequence containers, and it takes approximately 2-3 seconds per source to target mapping and sequence container to validate which will translate to 1 ½ to 2 ½ minutes to open. When the project with all 100+ tables for the data warehouse goes through validation, I can make coffee in the time it takes to open the project. I have to delete *.suo file (or verify all packages are closed in the designer and save the project file), and when I open the project, I have to jump immediately to SSISàWork Offline to set it to not validate the metadata to be able to work in a timely fashion. DelayValidation=TRUE does not help much.
Running in debug mode, has an effect of causing packages that were not open and validated to go through validation though I am not running those packages. Validate once during design and run forever.
Even if I re-open a package that I just closed from designer and had gone through validation, it will go through the validation process again.
It would be great if there could be an on-demand option off the menu bar to allow one to control when validation can take place for a project, or a more granular validation option for a specific data flow or container.