Follow-up Comment #1, sr #136834 (project xrootd): Hi David, CMSSW already sends out a single UDP packet per file accessed containing this information. This should be enabled for CERN (if it isn't already), and this information will be available from the file popularity service. If you want to have your own listener, this is controlled by the SiteLocalConfigService. Brian _______________________________________________________ Reply to this item at: <http://savannah.cern.ch/support/?136834> _______________________________________________ Message sent via/by LCG Savannah http://savannah.cern.ch/ ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1