Optimisation and bug fixing of UI push events (#310)

Signed-off-by: kaizimmerm <kai.zimmermann@bosch-si.com>

hawkbit-autoconfigure/src/main/resources/hawkbitdefaults.properties

@@ -14,11 +14,17 @@ security.basic.realm=HawkBit
 security.user.name=admin
 security.user.password=admin
 
-# JPA / Datasource
-spring.jpa.eclipselink.eclipselink.weaving=false
+### JPA / Datasource - START
 spring.jpa.database=H2
 spring.jpa.show-sql=false
 spring.datasource.driverClassName=org.h2.Driver
+# Logging
+spring.datasource.eclipselink.logging.logger=JavaLogger
+spring.jpa.properties.eclipselink.logging.level=off
+# Cluster aware
+spring.datasource.eclipselink.query-results-cache=false
+spring.datasource.eclipselink.cache.shared.default=false
+### JPA / Datasource - END
 
 # MongoDB for artifact-repository
 spring.data.mongodb.uri=mongodb://localhost/artifactrepo