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Use separate transactions for each bulk update of offline sessions in PersisterLastSessionRefreshStore to avoid deadlocks

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closes #13684
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mposolda 2022-08-09 21:22:52 +02:00 committed by Marek Posolda
parent 2002fd983b
commit 254483bc5d
1 changed files with 12 additions and 10 deletions
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22
model/infinispan/src/main/java/org/keycloak/models/sessions/infinispan/changes/sessions/PersisterLastSessionRefreshStore.java
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@ -19,6 +19,7 @@ package org.keycloak.models.sessions.infinispan.changes.sessions;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import java.util.stream.Collectors;
import org.jboss.logging.Logger;
@ -26,6 +27,7 @@ import org.keycloak.common.util.Time;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;
import org.keycloak.models.session.UserSessionPersisterProvider;
import org.keycloak.models.utils.KeycloakModelUtils;
import org.keycloak.models.utils.SessionTimeoutHelper;
/**
@ -59,19 +61,19 @@ public class PersisterLastSessionRefreshStore extends AbstractLastSessionRefresh
logger.debugf("Updating %d userSessions with lastSessionRefresh: %d", refreshesToSend.size(), lastSessionRefresh);
}
UserSessionPersisterProvider persister = kcSession.getProvider(UserSessionPersisterProvider.class);
// Separate transaction for each bulk update request to avoid deadlocks
for (Map.Entry<String, Set<String>> entry : sessionIdsByRealm.entrySet()) {
RealmModel realm = kcSession.realms().getRealm(entry.getKey());
KeycloakModelUtils.runJobInTransaction(kcSession.getKeycloakSessionFactory(), (kcSession2) -> {
UserSessionPersisterProvider persister = kcSession2.getProvider(UserSessionPersisterProvider.class);
RealmModel realm = kcSession2.realms().getRealm(entry.getKey());
// Case when realm was deleted in the meantime. UserSessions were already deleted as well (callback for realm deletion)
if (realm == null) {
continue;
}
// If realm is null, it means that realm was deleted in the meantime. UserSessions were already deleted as well (callback for realm deletion)
if (realm != null) {
Set<String> userSessionIds = new TreeSet<>(entry.getValue());
Set<String> userSessionIds = entry.getValue();
persister.updateLastSessionRefreshes(realm, lastSessionRefresh, userSessionIds, offline);
persister.updateLastSessionRefreshes(realm, lastSessionRefresh, userSessionIds, offline);
}
});
}
}
}