Hello,
in one of our clients we are having issues downloading the repository manifest, and I’m trying to figure out exactly what is going on and whether there is a simple fix to it.
The client is connecting directly to a Stratum-1 server named “cernie1”.
I can “ping cernie1” and “wget http://cernie1” without problems and both use IPV4.
If I try “ping -6 cernie1” I get a “Network is unreachable”.
In the conf file for this domain I set:
CVMFS_SERVER_URL=“http://cernie1/cvmfs/@fqrn@;http://cernie2/cvmfs/@fqrn@”
but then the logs show me:
jun 06 12:03:09 proton cvmfs2[18029]: (sie_u22.iac.es) switching host from http://cernie1/cvmfs/sie_u22.iac.es to http://cernie2/cvmfs/sie_u22.iac.es (failed to resolve host address)
jun 06 12:03:11 proton cvmfs2[18029]: (sie_u22.iac.es) failed to download repository manifest (4 - failed to resolve host address)
I thought perhaps adding CVMFS_IPFAMILY_PREFER=4 to the conf file would force CVMS to use only IPV4, but it seems to be doing the same. Any suggestions to fix this?
(if I use an IPV4 IP address directly in the CVMFS_SERVER_URL variable, then all is good, but I’m hoping to avoid that, so that I can switch servers quickly in case of failure, without having to change the clients’ configuration)