Andrew, @mire has been working to contribute an addon for DSpace that will support utilizing Solr as a store to manage usage events on the repository (this addon forms the backend for the @mire Statistics Suite), we have places a basic implementation into the dspace repository and are currently working to complete the last steps in wiring it to the UsageEvent (actually this has grown into bringing portions of the DSpace 2.0 Event API into DSpace 1.6 for use in attaching multiple EventListeners to receive the usage events generated by the existing implementation.
The implementation is currently organized into two projects located here: https://scm.dspace.org/svn/repo/modules/dspace-solr/ https://scm.dspace.org/svn/repo/modules/dspace-solr-stats/ It utilizes posting usage events to Solr via a multithreaded HTTP client that will process/queue multiple requests asynchronously into the Solr instance. It is my opinion that this solution is effectively separate enough from DSpace that it may eventually be utilized for other systems. I think that ultimately the scalability issues of dealing with usage event storage of past years (or if experiencing high volume of activity, past months). This still needs to be addressed no matter what the final solution in this area. I suspect this will mean rolling up old events into aggregated statistical "views/reports" rather than retaining those individual events. I seem to recall that Awstats was capable of something along these lines, allowing it to maintain a relatively fixed database size regardless of how many years for data were stored within it. We would certainly be very interested in contribution by other community members in this area. Cheers, Mark -- Mark R. Diggory @mire - http://www.atmire.com ------------------------------------------------------------------------------ _______________________________________________ DSpace-tech mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dspace-tech
