Hello DDV,

Is this occurring to all users and all workbooks on the Tableau Server? Are there specific error messages being displayed to the users when they cannot open the workbook? Please include a screenshot of the error message if possible.

One troubelshooting step would be to republish the affected workbook to Tableau Server.

Hope this helps!

Cheers,

Byrne, Patrick

Hello DDV,

I think scheduler/Subscription E-mail might be running in the mean time, check about this and change the timings of Scheduler/Subscription.

Or else there might be a case of workbook contain complex calculation, for that reason users might be facing that issue.

To resolve this kind of problem go through the 20 best practices of Tableau Dashboard designing.

Regards,

Kanthesh M.D

Please provide a screen shot of your Server Status page.

Yes, Custom SQL should be used as a last resort.  It's rarely a good idea and the vast majority of the time it will slow things down.

In my opinion you should drop two VizQL Server processes, drop two Data Server processes, and add two Backgrounder processes.

How many CPUs are being used on the server?  Are you using core-based or user-based licensing?  If user-based then you can easily add more CPUs...adding RAM certainly doesn't hurt if you can get it.

How many cores?

For an 8core 64GB machine, 4 VizQL servers on top of having Backgrounder is somewhat overloading the system.  Would strongly recommend dialing back the # of VizQL server processes to two only.   Same for Data Server, given the specs 4 seems a bit much, would dial that back to two.

You didn't mention this   Web editing will use server resources!  This is why we ask for details because there are many things to take into consideration that can matter.

From the admin guide: "Because VizQL server processes can consume a lot of CPU and memory, adding too many processes can slow down the server instead."

So read the page where I pulled the quote and really look at what is being asked of your environment.  From there you can make adjustments and monitor to see if it helped or not.  Since you have a core-based license the only real hardware improvements are increases in RAM but in the end you may find you ultimately need more cores. For example, growth for Tableau has grown very rapidly where I work and we've gone from a single, 8-core server to a 24-core license with two servers and are planning on getting more hardware to divvy-up the responsibilities.  In other words, server & software settings will only get you so far and after that your environment will only improve with additional hardware (cores).