Re: [keycloak-user] Max number of Realms supported each keycloak instance/node
Hello Nagendra,
On Thu, Oct 24, 2019 at 7:12 PM Nagendra Darla <dvv.nagendra(a)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(a)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