# follow the "Configure cvmfs" section of this Twiki and restart autofsĭefault Installation (Users, non-OSG/EGI sites)įetch and install the repo information (only needed first time): Test ! -e /etc//tofs & echo "/cvmfs /etc/auto.cvmfs" > /etc//tofs # This is for CentOS7 if you are on SLC6, please upgrade to CentOS7. While you should be diligent and read the EGI-cvmfs instructions, this is a summary of what it involves. Please see these EGI-cvmfs instructions but note that when you configure /etc/cvmfs/default.local, you should set this as shown in the Configure cvmfs section below in this Twiki: (AlmaLinux 9: if EGI repos are unavailable for RHEL9-derived versions, please use the default installation method as listed below) US OSG sites, please use these instructions instead: Open Science Grid CVMFS install instructionsĪfterwords, when you configure /etc/cvmfs/default.local, you should set this as shown in the Configure cvmfs section below in this Twiki: (AlmaLinux 9: if OSG repos are unavailable for RHEL9-derived versions, please use the default installation method as listed below) However note that the OSG/EGI may install cvmfs versions that are older than that of the default ones. The OSG/EGI configuration also redirects those who set a DIRECT proxy to use Cloudflare for cvmfs stratum 1s this is a good reason for everyone else to follow these instructions instead of the default ones. This is important for the WLCG squid operations team and the stratum 1 operators because it keeps failovers (when local squids aren't working) from going directly to the CVMFS stratum 1s. These OSG/EGI instructions will configureĬVMFS fallback proxies. If you are installing at a Tier1 or Tier2 site, you are encouraged to follow the OSG or EGI instructions. (Note the size of the partition above in MB in the Configure cvmfs section below, in /etc/cvmfs/default.local,"CVMFS_QUOTA_LIMIT " should be equal 80% of the available space (in MB), due to internal db files.(Note the partition above in the Configure cvmfs section below, in /etc/cvmfs/default.local, "CVMFS_CACHE_BASE" should point to it.).space of 25-50 GB is recommend for the local caching of cvmfs.it can be anywhere but avoid the root (/) partition.Create a partition //cache/cvmfs2 If you use /var/lib/cvmfs then you do not need to define CVMFS_CACHE_BASE in /etc/cvmfs/default.local. Or you you can run this script after cvmfs installation /cvmfs//repo/ATLASLocalRootBase/utilities/installCheck.sh to show what is missing (it can be run as normal user). In addition to the installation of cvmfs described here, you will need to also install required software for ATLAS these can be found here: Installation needs to be done on each machine that mounts the cvmfs volume (except as noted otherwise in the appropriate section - eg for nfs exports.) This is the client installation documentation for cvmfs in ATLAS please also refer to the starting point ATLAS cvmfs TWiki and additional relevant site and usage information. To revert, simply reinstall the old production version. Grid sites should monitor for "hot nodes" - for example, in Panda, you can look at to see failures by nodes (substitute your site name). Hints on updating: Please do it only on a small number of nodes and monitor it.
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