From b6ee342713ac11f1ff330e6bab3b4b11de43eb7e Mon Sep 17 00:00:00 2001
From: Wim Vandenhaute <wim.vandenhaute@cipalschaubroeck.be>
Date: Tue, 23 Apr 2019 13:07:17 +0200
Subject: [PATCH] KEYCLOAK-4593 Flush and clear when fetching multiple realms
 for performance improvement with large number of realms

---
 .../main/java/org/keycloak/models/jpa/JpaRealmProvider.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/model/jpa/src/main/java/org/keycloak/models/jpa/JpaRealmProvider.java b/model/jpa/src/main/java/org/keycloak/models/jpa/JpaRealmProvider.java
index 8c5f15c5c9..cd22a46fa9 100755
--- a/model/jpa/src/main/java/org/keycloak/models/jpa/JpaRealmProvider.java
+++ b/model/jpa/src/main/java/org/keycloak/models/jpa/JpaRealmProvider.java
@@ -117,7 +117,8 @@ public class JpaRealmProvider implements RealmProvider {
         for (String id : entities) {
             RealmModel realm = session.realms().getRealm(id);
             if (realm != null) realms.add(realm);
-
+            em.flush();
+            em.clear();
         }
         return realms;
     }
@@ -730,4 +731,4 @@ public class JpaRealmProvider implements RealmProvider {
         model.setTimestamp(entity.getTimestamp());
         return model;
     }
-}
+}
\ No newline at end of file