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- Hi Vikaram,
Tableau Server licenses have two aspects: the license model (term or perpetual) and the license metric (user-based or core-based). Term licenses are user-based, and perpetual licenses are usually core-based.
- A user-based license metric allows you to deploy Tableau Server on a single computer or on multiple computers in a cluster. Each user that accesses Tableau Server must be licensed. Administrators add users and license them.
---------->Limited number of licensed users are allowed
- A core-based license metric imposes no constraints on the number of user accounts in Tableau Server. Instead, the license specifies the maximum number of computer cores on which you can run Tableau Server. You can install Tableau Server on a single computer or across multiple computers as a multi-node cluster, as long as the total number of cores in all the computers does not exceed the total number that the license allows.
-------->Here you can have unlimited number of Users , number of Cores are limited instead hence license is against the Core (perpetual licenses)
Depends upon the requirement , if you want to add lot of users then sometime user based license can be more expensive and Core based licensing becomes more feasible , just an example.
You need to find the best way to handle
Please mark the answer as CORRECT & HELPFUL if it really helped you so that it can help others as well.
Some side discussion here: Re: Just when I was sorta-kinda understanding the new permissions of 2018.1 I read this...
The version you're curious about would kind of help since version 2018.1 changed things.
We use core-based because we have a potential of 30K+ people [Canada, USA, Mexico] who can access our Tableau Server and an additional 200K+ world-wide. Purchasing licenses for such a huge number of people is totally unreasonable! It also allows Guest access, meaning anyone can view a workbook if permissions allow it. In our situation we use Active Directory (AD) to authenticate so if a person isn't in our AD then by default they are unable to log onto the TS and view anything (very nice security measure, my IT security team likes it). The downside is that if you need more power (i.e. CPUs) then you have to purchase additional licenses and the sucky part about that is that you typically have to do it in 8-core chunks -- gone are the days of the slightly more affordable 4-core chunks
If we were a smaller or medium-sized business then role-based may be a better solution. It allows the freedom to add/remove hardware at will (very nice!) to accommodate the business's needs, something that is not possible with core-based licensing. You only pay for what you need.
Are we ok that with a core-licensing server, a user cannot be creator THEREFORE cannot connect directly on web edit? https://onlinehelp.tableau.com/current/online/en-us/creator_connect.htm
I try to use this functionnlity with a core-licenced server :
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You can combine a Core based installation (which grants unlimited number of Explorers) with a number of Tableau Server Creator seats.
You have 2x8-Core Server licenses
You have 20 Tableau Server Creator licenses.
If you apply the licenses above this is your situation:
Your Tableau Cluster can only utilize 16 CPU Cores
You can add an unlimited amount of users with Explorer Capabilities to your deployment
You can add 20 users to your deployment with Creator capabilities.
You can utilize the "Guest user" feature.
The method of combining Core based licensing and User licensing is called "Stacking".
Very interesting option, thanks you
Thanks guys for providing clarification on role based licenses verses core based licenses. In my organisation we use role based licenses for our users, creator and explorer licenses. Further, we are planning on an upgrade from tableau server 10.5.1 to 2019.1. I got product keys for creator and explorer licenses from tableau. Since this upgrade is a big jump from pre-tsm version to tsm version, I want to host the upgraded tableau server on a single computer, do I need separate tableau server key for this upgrade?
Any help will be appreciated as this is my first server upgrade!
Stacking allow me to add more core to my installation with out any limitation if i have licensed only 16 cores ?
As to the stacking comment: The 16 core limit was removed as right now there is no core limit. Discuss with your Tableau Sales rep.
I checked with the Tableau Licensing Team and they informed me there is no core limitation on stacking core and user based.
@ Heyward Drummond,
Thanks for your response but i was speaking with the sales team yesterday and discussed the option of adding a user based license to our existing core based server. The response was that we can't extend the cores beyond what we have licensed and does not add any big difference if I bring user based license model to the existing core based. Its worth me checking with the sales team again and thanks again for your response.
This is incorrect.
If you stack licenses you are still limited by your original Core count.
Otherwise the best way to scale your deployment would be by purchasing a single 8-Core license and then buying the creators you need.
That way you would get an unlimited amount of Explorers without the limitation of only utilizing an 8-core server.
If you however mean that you can combine a Core-deployment irregardless of its size with Creator licenses then yes you are correct, it does not matter if you core-based deployment is 8-cores or 192-cores. But you can never exceed the amount of cores in your deployment as long as you are on a core-based licensing model.