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Hi, very good question, indeed. In general for xrootd-related tech things there are no data protocol backward incompatibilities, so, in general we apply the principle "the newer the better", since we almost never stop finding small bugs here and there, and ew keep on developing new things. So, the general answer, but valid just for this time is to use the latest one if you know how to setup it manually. This (from my standpoint) is valid just now because I am (also...sic) working on xrd-installer, in order to put its content in shape and with all the latest goodies for ALICE. BTW, the newest snapshot contains a couple of fixes (both client and server) which are supposed to solve an annoying stability problem, which was in most of the cases (but not all cases) hidden by the fault tolerance. Hence, this will be the overall direction. The general difficulty with ALICE setups is that they do not need just the plain xrootd setup. If you are tempted by the latest versions, I can only encourage you to experiment, and give my support. Typically the ROOT bundle is quite up-to-date, but now we have a better way to get the bleeding edge stuff, i.e. download the tarballs from the new web page. Today, at 14:00 Andy Hanushevsky will have an IT seminar here at CERN, his slides will announce this sort of info-point at CERN about Scalla and xrootd, available since... today! Fabrizio Schwarz, Kilian wrote: > Hi all, > > this is a good question, probably to Fabrizio. I would also be interested in the answer. > > Cheers, > > Kilian > > ----------------------------------------- > Dr. Kilian Schwarz > Gesellschaft für Schwerionenforschung mbH > Informationstechnologie > Planckstr. 1, D-64291 Darmstadt, Germany > phone: +49-6159-71-2076 > fax : +49-6159-71-2986 > ----------------------------------------- > > > -----Ursprüngliche Nachricht----- > Von: Claudiu SCHIAUA [mailto:[log in to unmask]] > Gesendet: Donnerstag, 8. Mai 2008 18:51 > An: [log in to unmask] > Betreff: Question regarding upcoming 2-15 > > Hello, > > I have a question regarding the upcoming AliEn 2-15. At > http://pcalibuildintel.cern.ch:8888/i686-pc-linux-gnu/HEAD/apps/base/xrootd/details.html > the xrootd version is 20080401-1126, but the version used (and > distributed) by root-v5-19-02a > ( http://root.cern.ch/viewvc/tags/v5-19-02a/net/xrootd/src/xrootd/src/XrdVersion.hh?revision=23527&view=markup ) > is 20071116-0000c. Which version should be used on the dataservers? > > Cheers, > Claudiu > >