Parallel Distributed Infrastructure for Minimization of Energy

ParaDIME member wins best paper award at Large Installation and System Administration Conference

Wed, 2013-11-06
ParaDIME member Thomas Knauth wins the best paper award at the 27th Large Installation and System Administration Conference for his work on efficient synchronization of large binary data sets. The conference took place from 3-8 November in Washingtion, D.C., USA this year, drawing over a thousand attendees. The work was honored for its practical impact by providing system administrators with a novel tool to speed up daily administrative data synchronization processes.
Sysadmins routinely synchronize state between physically distant servers. Traditional checksum-based tools like, for example, rsync, have a high computational overhead which unnecessarily prolongs the time required for synchronization. The presented tool, called dsync, reduces the synchronization time by tracking changes as they happen. Change tracking obviates the need for post-hoc mechanisms to identify changes, speeding up the synchronization process.
In the context of the ParaDIME project dsync enables the swift transfer of virtual machine (VM) disks between servers. VM disks can easily have hundreds of gigabytes of state. Being able to transfer them quickly between servers increases the scheduling flexibility, which in turn allows to turn off servers more frequently and/or for longer time periods.