Hi,
On 26.2.2016 09:33, Stian Thorgersen wrote:
This should work just fine without sticky sessions.
Sure, but there may be latencies or so between nodes which may bring
problems, and it is always hard to troubleshoot this kind of problems.
Sticky session generally lowers probability of this kind of operational
problems, this is why I like them and use them ;-) But correctly
configured replication is necessary even in case of sticky sessions to
have failover.
We also don't support sticky sessions at the moment as
there's no
cookie to stick on. We're going to look into supporting sticky
sessions soon.
Some loadbalancers are able to make sticky session on his owns, even if
application itself do not provide any cookie. We use this on RHD
website, we have F5 loadbalancer which handles sticky sessions for us (I
think it creates his own cookie), and is able correctly failover when
keycloak node dies.
So don't tell your users that Keycloak doesn't support sticky sessions
at all, it works with sticky sessions correctly if provided by
loadbalancer by some way not relying on cookie provided by Keycloak
itself. ;-)
Vlastimil
On 26 February 2016 at 09:29, Vlastimil Elias <velias(a)redhat.com
<mailto:velias@redhat.com>> wrote:
What about configuring Loadbalancer to use sticky sessions?
Vlastimil
On 25.2.2016 16:10, Peter Krivansky wrote:
>
> Hello,
>
> I have a Keycloak cluster with two servers, in front of each
> Keaycloak is Apache running.
>
> LB
>
> /\
>
> Host A Host B
>
> Now, Host-A and Host-B are in different subnets, due to this
> design we are running jGroups via TCP.
>
> Now everything is working fine, except for the Keycloak Admin
> console, once a user tries to log in, they get for a milisecond
> in to the Admin console, but then they get redirected to the
> login page immediately.
>
> When I disable Host-A or Host-B on the Loadbalancer, (new
> sessions will land only on Hst-A or Host-B) the Login to Keycloak
> Admin Console will work normally.
>
> During the immediate redirection there is only this one WARNING
> in the Server.log:
>
> 15:41:42,886 WARN [org.jboss.resteasy.core.ExceptionHandler]
> (default task-10) Failed executing GET /admin/serverinfo:
> org.jboss.resteasy.spi.UnauthorizedException: Bearer
>
> at
>
org.keycloak.services.resources.admin.AdminRoot.authenticateRealmAdminRequest(AdminRoot.java:156)
>
> at
>
org.keycloak.services.resources.admin.AdminRoot.getServerInfo(AdminRoot.java:209)
>
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>
> at
>
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>
> at java.lang.reflect.Method.invoke(Method.java:498)
>
> at
>
org.jboss.resteasy.core.ResourceLocatorInvoker.createResource(ResourceLocatorInvoker.java:81)
>
> at
>
org.jboss.resteasy.core.ResourceLocatorInvoker.createResource(ResourceLocatorInvoker.java:60)
>
> at
>
org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:102)
>
> at
>
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
>
> at
>
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
>
> at
>
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
>
> at
>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
>
> at
>
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
>
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
>
> at
>
io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
>
> at
>
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
>
> at
>
org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:61)
>
> at
> io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
>
> at
>
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
>
> at
> io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
>
> at
>
io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
>
> at
>
io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
>
> at
>
org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
>
> at
>
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
>
> at
>
io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
>
> at
>
io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
>
> at
>
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
>
> at
>
io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
>
> at
>
io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
>
> at
>
io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
>
> at
>
io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
>
> at
>
io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
>
> at
>
io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
>
> at
>
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
>
> at
>
org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
>
> at
>
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
>
> at
>
io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
>
> at
>
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
>
> at
>
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
>
> at
>
io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
>
> at
>
io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
>
> at
> io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)
>
> at
> io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)
>
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>
> at java.lang.Thread.run(Thread.java:745)
>
> I attached my domain.xml
>
> Have I missed something, or what did I wrong?
>
> With Kind regards Peter
>
>
>
> _______________________________________________
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>
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--
Vlastimil Elias
Principal Software Engineer
Developer Portal Engineering Team
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--
Vlastimil Elias
Principal Software Engineer
Developer Portal Engineering Team