ZdcGeoDBGeometryDB Node1 ZdcGeoDBGeometryDB   + ZdcGeoDBGeometryDB() + loadGeoDB() + getInstance() Node2 IZdcGeometryDB # m_geoLoaded # m_mainJson + IZdcGeometryDB() + getDB() Node2->Node1 Node3 asg::AsgMessaging   + AsgMessaging() + AsgMessaging() + msgLvl() + msg() + msg() * msgLvl() * msg() * msg() Node3->Node1 Node4 AthMessaging - m_nm - m_msg_tls - m_imsg - m_lvl - ATLAS_THREAD_SAFE + AthMessaging() + AthMessaging() + ~AthMessaging() + msgLvl() + msg() + msg() + setLevel() - AthMessaging() - AthMessaging() - operator=() - initMessaging() Node4->Node3