LOAD BALANCING METHOD AND SYSTEM FOR METADATA SERVICE

摘要

PURPOSE: A load balancing method for a metadata service and system thereof are provided to supply a seamless service and to minimize the intervention of a manager in a cloud computing environment. CONSTITUTION: An MDS watcher periodically receives a heartbeat from an MDS(Metadata Server). An MDS controller calculates an MDS use value of the MDS value through the heartbeat. The MDS controller determines that the MDS having small MDS value is determined as a shadow MDS and copies a hotspot file to the shadow MDS. If a client inquires a hot spot file, a channel controller connects client to the shadow MDS. An update manager transmits the change information of a metadata lookup table to an MLTS(Metadata Lookup Table Server).