[keycloak-user] Max number of Realms supported each keycloak instance/node

[Nagendra Darla]

Thank you so much Jan!

On Thu, Oct 24, 2019 at 11:13 AM Jan Lieskovsky <jlieskov at redhat.com> wrote:

> Hello Nagendra,
>
> On Thu, Oct 24, 2019 at 7:12 PM Nagendra Darla <dvv.nagendra at gmail.com>
> wrote:
>
>> Hello All,
>>
>> Can someone help me with my question?
>>
>> Thank you.
>>
>> On Wed, Oct 16, 2019 at 4:26 PM Nagendra Darla <dvv.nagendra at gmail.com>
>> wrote:
>>
>> > Hello All,
>> >
>> > I wondering if we have any documentation or suggestion on maximum number
>> > of realms that can be created on a keycloak instance. If it is bases on
>> > hardware configuration then is there any reference configuration
>> > mentioned anywhere in keycloak documentation ?
>>
>
> AFAICT the maximum number of realms, supported per one Keycloak instance
> is not documented
> (as of right now) in the documentation. The reason for that being a
> prosaic one - it is not possible
> in the universal case to specify the maximum number of realms, that can be
> supported, as this
> depends on many factors (HW used, count of CPUs / vCPUs, memory, the load
> of the Keycloak
> server itself).
>
> Although, so far we know, a performance degradation was observed having an
> ordinary Keycloak
> instance, having more than 100+ realms. There's an existing JIRA
> <https://issues.jboss.org/browse/KEYCLOAK-4593> to improve this (increase
> the count of realms, Keycloak server can handle gracefully without
> performance penalties).
>
> Therefore, the (so far) recommended setup would be to limit count of
> realms to be less than 100
> per one Keycloak server instance.
>
> >
>> > Your help is much appreciated.
>> >
>> > Thank You,
>> > Nagendra Darla
>> >
>>
>>
>> --
>> Thank You,
>> Nagendra Darla
>>
>
> HTH
>
>
> Regards, Jan
> --
> Jan iankko Lieskovsky / Keycloak / RH-SSO Team
>
>

-- 
Thank You,
Nagendra Darla