7:03 a.m.
Hi,
I'm in the process of setting up distributed user sessions using Infinispan on my
Keycloak cluster. This is the configuration I use -
<cache-container name="keycloak"
jndi-name="java:jboss/infinispan/Keycloak">
<transport lock-timeout="60000"/>
<invalidation-cache name="realms" mode="SYNC"/>
<invalidation-cache name="users" mode="SYNC"/>
<distributed-cache name="sessions" mode="SYNC"
owners="2"/>
<distributed-cache name="loginFailures" mode="SYNC"
owners="1"/>
</cache-container>
And in server.logs, I can see my servers communicate -
2015-07-27 10:27:24,662 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t7) ISPN000310:
Starting cluster-wide rebalance for cache users, topology CacheTopology{id=57,
rebalanceId=17, currentCH=ReplicatedConsistentHash{ns = 60, owners = (1)[test-server-110:
60]}, pendingCH=ReplicatedConsistentHash{ns = 60, owners = (2)[test-server-110: 30,
test-server-111: 30]}, unionCH=null, actualMembers=[test-server-110, test-server-111]}
2015-07-27 10:27:24,665 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t10) ISPN000310:
Starting cluster-wide rebalance for cache realms, topology CacheTopology{id=57,
rebalanceId=17, currentCH=ReplicatedConsistentHash{ns = 60, owners = (1)[test-server-110:
60]}, pendingCH=ReplicatedConsistentHash{ns = 60, owners = (2)[test-server-110: 30,
test-server-111: 30]}, unionCH=null, actualMembers=[test-server-110, test-server-111]}
2015-07-27 10:27:24,665 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t8) ISPN000310:
Starting cluster-wide rebalance for cache loginFailures, topology CacheTopology{id=57,
rebalanceId=17, currentCH=DefaultConsistentHash{ns=80, owners = (1)[test-server-110:
80+0]}, pendingCH=DefaultConsistentHash{ns=80, owners = (2)[test-server-110: 40+0,
test-server-111: 40+0]}, unionCH=null, actualMembers=[test-server-110, test-server-111]}
2015-07-27 10:27:24,669 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t9) ISPN000310:
Starting cluster-wide rebalance for cache sessions, topology CacheTopology{id=56,
rebalanceId=17, currentCH=DefaultConsistentHash{ns=80, owners = (1)[test-server-110:
80+0]}, pendingCH=DefaultConsistentHash{ns=80, owners = (2)[test-server-110: 40+0,
test-server-111: 40+0]}, unionCH=null, actualMembers=[test-server-110, test-server-111]}
2015-07-27 10:27:24,808 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t9) ISPN000336:
Finished cluster-wide rebalance for cache loginFailures, topology id = 57
2015-07-27 10:27:24,810 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t12) ISPN000336:
Finished cluster-wide rebalance for cache sessions, topology id = 56
2015-07-27 10:27:24,988 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t12) ISPN000336:
Finished cluster-wide rebalance for cache realms, topology id = 57
2015-07-27 10:27:25,530 INFO [org.infinispan.CLUSTER] (remote-thread--p3-t8) ISPN000336:
Finished cluster-wide rebalance for cache users, topology id = 57
I can successfully login, get a token and fetch user details with this token.
Problem is, if one of the nodes on the cluster goes down and if we try to reuse a token
which was already issued (so workflow is - user logins in, get token, (a node in the
cluster goes down) and then fetch user details using token) - we see an internal server
exception. From the logs -
2015-07-27 10:24:25,714 ERROR [io.undertow.request] (default task-1) UT005023: Exception
handling request to /auth/realms/scaletest/protocol/openid-connect/userinfo:
java.lang.RuntimeException: request path:
/auth/realms/scaletest/protocol/openid-connect/userinfo
at
org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:54)
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.server.handlers.MetricsHandler.handleRequest(MetricsHandler.java:62)
at
io.undertow.servlet.core.MetricsChainHandler.handleRequest(MetricsChainHandler.java:59)
at
io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:274)
at
io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:253)
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$1.run(HttpServerExchange.java:774)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
at
org.jboss.resteasy.core.ExceptionHandler.handleApplicationException(ExceptionHandler.java:76)
at
org.jboss.resteasy.core.ExceptionHandler.handleException(ExceptionHandler.java:212)
at
org.jboss.resteasy.core.SynchronousDispatcher.writeException(SynchronousDispatcher.java:149)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:372)
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$FilterChainImpl.doFilter(FilterHandler.java:130)
at
org.keycloak.services.filters.ClientConnectionFilter.doFilter(ClientConnectionFilter.java:41)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
at
io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
at
org.keycloak.services.filters.KeycloakSessionServletFilter.doFilter(KeycloakSessionServletFilter.java:40)
... 31 more
Caused by: java.lang.NullPointerException
at
org.keycloak.protocol.oidc.endpoints.UserInfoEndpoint.issueUserInfo(UserInfoEndpoint.java:128)
at
org.keycloak.protocol.oidc.endpoints.UserInfoEndpoint.issueUserInfoGet(UserInfoEndpoint.java:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:109)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:135)
at
org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
... 42 more
The user guide says -
If you need to prevent node failures from requiring users to log in again, set the owners
attribute to 2 or more for the sessions cache
Questions -
1. Have we configured Infinispan incorrectly? We don't want the users to login again
if any of the nodes in the cluster go down.
2. Will changing distributed-cache to replicated-cache help in this scenario?
3. Any way we can see the contents of the cache?
-- Rajat