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Hi Jacek, Ah, the problem is that NCSA did not do a complete IPv6 setup. Buy default, xrootd starts up using IPv6 if there is a usable IPv6 interface. However, that won't work if the IPv6 setup is not complete relative to DNS. You can force xroot to start it IPv4 mode by adding the "-I v4" command line option. We've seen this before and we have making patches to get around this problem when we encounter it. So, I am a bit suprised that there is yet another way of this not working. What version of xroot is being run there? Andy On Wed, 26 Aug 2015, Becla, Jacek wrote: > Andy, > > I am trying out NCSA-provided openstack and xrootd does not like to start there because of: > > 150826 04:13:06 8795 XrdConfig: Unable to determine host name; ai_family not supported ; execution terminated. > > What command do you run that is causing that, and how do we go about fixing this? > > In case this helps: > > uname -a > Linux jacek-test01 3.10.0-229.7.2.el7.x86_64 #1 SMP Tue Jun 23 22:06:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux > > hostname > jacek-test01 > > hostname -s > jacek-test01 > > Thanks, > Jacek > > ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1