17-18 November 2014
Europe/Zurich timezone
There is a live webcast for this event.

The File Sync Algorithm of the ownCloud Desktop Clients

17 Nov 2014, 17:00
31/3-004 - IT Amphitheatre (CERN)

31/3-004 - IT Amphitheatre


Show room on map
Technology and research Technology and research


Mr Klaas Freitag (ownCloud GmbH)


The ownCloud desktop clients provide file syncing between desktop machines and the ownCloud server, available for the important desktop platforms. This presentation will give an overview of the sync algorithm used by the clients to provide a fast, reliable and robust syncing experience for the users. It will describe the phases a sync run will go through and how it is triggered. It also will provide an insight on the algorithms that decided if a file is uploaded, downloaded or even deleted on either on the local machine or in the cloud. Some examples of non obvious situations in file syncing will be described and discussed. As the ownCloud sync protocol is based on the open standard WebDAV the resulting challenges and the solutions will be illustrated. Finally a couple of frequently proposed enhancements will be reviewed and assed for the future development of the ownCloud server and syncing clients.

Primary author

Mr Klaas Freitag (ownCloud GmbH)

Presentation Materials