3:53 a.m.
Keycloak has been designed to work in multiple environments, not just JavaEE. That's
why container managed transactions are not used. JTA transactions are not required either
as there's a single database, hence no need for distributed transactions.
Can you provide me with some more information about the errors you are seeing? Including
the server log, persistence.xml, etc. It should work perfectly well with resource local
transactions.
If you have a real requirement for using JTA a data-source we can certainly look into
supporting that.
----- Original Message -----
From: "Dean Peterson" <peterson.dean(a)gmail.com>
To: keycloak-user(a)lists.jboss.org
Sent: Thursday, 13 March, 2014 6:40:23 PM
Subject: [keycloak-user] Trying to use JTA transactions for JPA causes errors
I get transaction rollback errors frequently. Every time I leave the
application idle for a few minutes and come back, the system has transaction
errors. I have to refresh multiple times for the keycloak admun-ui to start
responding again. I realized my settings were using local database
transactions and that does not work well. I am using JBOSS and J2EE so I
definitely want to use the container managed transactions. I switched the
settings in my management console and changed my persistence.xml to this:
<persistence xmlns=" http://java.sun.com/xml/ns/persistence "
xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance "
xsi:schemaLocation=" http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd "
version="1.0">
<persistence-unit name="jpa-keycloak-identity-store"
transaction-type="JTA">
<jta-data-source>java:jboss/datasources/ui_users</jta-data-source>
<class>org.keycloak.models.jpa.entities.ApplicationEntity</class>
<class>org.keycloak.models.jpa.entities.CredentialEntity</class>
<class>org.keycloak.models.jpa.entities.OAuthClientEntity</class>
<class>org.keycloak.models.jpa.entities.RealmEntity</class>
<class>org.keycloak.models.jpa.entities.RequiredCredentialEntity</class>
<class>org.keycloak.models.jpa.entities.ApplicationRoleEntity</class>
<class>org.keycloak.models.jpa.entities.RealmRoleEntity</class>
<class>org.keycloak.models.jpa.entities.SocialLinkEntity</class>
<class>org.keycloak.models.jpa.entities.UserEntity</class>
<class>org.keycloak.models.jpa.entities.UserRoleMappingEntity</class>
<class>org.keycloak.models.jpa.entities.ScopeMappingEntity</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.SQLServer2008Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
</properties>
</persistence-unit>
</persistence>
Now when I start the server I get the following error:
java.lang.NullPointerException
at
org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus(JtaStatusHelper.java:76)
at
.
.
.
org.keycloak.models.jpa.JpaKeycloakSessionFactory.createSession(JpaKeycloakSessionFactory.java:21)
at
.
.
.
jboss.undertow.deployment.default-server.default-host./auth: Failed to start
service
Caused by: java.lang.RuntimeException: Failed to construct public
org.keycloak.server.KeycloakServerApplication(javax.servlet.ServletContext)
throws java.io.FileNotFoundException
Any ideas why this is happening?
Thanks,
Dean Peterson
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