Method and apparatus for selecting a group leader

• Main Authors: BESTAVROS, AZER, KARGE, LEROY R, BASANI, VIJAY R, CROVELLA, MARK E, REVSIN, VITALY S, MURACH, LYNNE M, MANGIAPUDI, KRISHNA, LAROSA, DOMENIC J
• Format: Patent
• Language: English; French; German
• Published: 17.01.2007
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The present invention provides a system and apparatus for efficient and reliable, control and distribution of data files or portions of files, applications, or other data objects in large-scale distributed networks. A unique content-management front-end provides efficient controls for triggering distribution of digitized data content to selected groups of a large number of remote computers servers. Transport-layer protocols interact with distribution controllers to automatically determine an optimized tree-like distribution sequence to group leaders selected by network devices at each remote site. Reliable store-and-forward transfer to clusters is accomplished using a unicast protocol in the ordered tree sequence. Once command messages and content arrive at all participating group leaders, local hybrid multicast protocols efficiently and reliably distribute them to the back-end nodes for interpretation and execution. Positive acknowledgement is then sent back to the content manager from each group leader, and the updated content in each remote device autonomously goes "live" when the content change is locally completed.