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[Keycloak Guide] fails because of client session parameters #3567

@snazy

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@snazy

Describe the bug

The Keycloak getting-started guide currently fails to start Keycloak with the following log.

keycloak-1  | Updating the configuration and installing your custom providers, if any. Please wait.
keycloak-1  | 2026-01-27 09:09:11,635 INFO  [io.quarkus.deployment.QuarkusAugmentor] (main) Quarkus augmentation completed in 4087ms
keycloak-1  | Running the server in development mode. DO NOT use this configuration in production.
keycloak-1  | 2026-01-27 09:09:13,719 INFO  [org.infinispan.CONTAINER] (main) Virtual threads support enabled
keycloak-1  | 2026-01-27 09:09:14,181 INFO  [org.hibernate.orm.jdbc.batch] (JPA Startup Thread) HHH100501: Automatic JDBC statement batching enabled (maximum batch size 32)
keycloak-1  | 2026-01-27 09:09:14,708 INFO  [org.keycloak.quarkus.runtime.storage.database.liquibase.QuarkusJpaUpdaterProvider] (main) Initializing database schema. Using changelog META-INF/jpa-changelog-master.xml
keycloak-1  | 2026-01-27 09:09:16,414 INFO  [org.infinispan.CONTAINER] (main) ISPN000556: Starting user marshaller 'org.infinispan.commons.marshall.ImmutableProtoStreamMarshaller'
keycloak-1  | 2026-01-27 09:09:16,605 INFO  [org.keycloak.connections.infinispan.DefaultInfinispanConnectionProviderFactory] (main) Node name: node_999241, Site name: null
keycloak-1  | 2026-01-27 09:09:16,719 INFO  [org.keycloak.exportimport.dir.DirImportProvider] (main) Importing from directory /opt/keycloak/bin/../data/import
keycloak-1  | 2026-01-27 09:09:16,723 INFO  [org.keycloak.services] (main) KC-SERVICES0050: Initializing master realm
keycloak-1  | 2026-01-27 09:09:17,451 INFO  [org.keycloak.services] (main) KC-SERVICES0030: Full model import requested. Strategy: IGNORE_EXISTING
keycloak-1  | 2026-01-27 09:09:17,773 INFO  [com.arjuna.ats.jbossatx] (main) ARJUNA032014: Stopping transaction recovery manager
keycloak-1  | 2026-01-27 09:09:17,836 ERROR [org.keycloak.quarkus.runtime.cli.ExecutionExceptionHandler] (main) ERROR: Failed to start server in (development) mode
keycloak-1  | 2026-01-27 09:09:17,836 ERROR [org.keycloak.quarkus.runtime.cli.ExecutionExceptionHandler] (main) ERROR: Invalid client client1: Client session idle timeout cannot exceed realm SSO session idle timeout.; Client session max lifespan cannot exceed realm SSO session max lifespan.
keycloak-1  | 2026-01-27 09:09:17,836 ERROR [org.keycloak.quarkus.runtime.cli.ExecutionExceptionHandler] (main) For more details run the same command passing the '--verbose' option. Also you can use '--help' to see the details about the usage of the particular command.

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