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Sita Admin Corner
National Squid service for CVMFS | ||||||||
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< < | If you are going to run jobs on your cluster using CernVM-FS you should also use squids to cache data at your site. In case you decide to not install a squid service at your site, Italian NGI provide a National squid service accessible only by registered italian sites. | |||||||
> > | If you are going to run jobs on your cluster using CernVM-FS you should also use squids to cache data at your site. In case you decide to not install a squid service at your site or in case of failover at your site, Italian NGI provide a National squid service accessible only by registered italian sites. | |||||||
We have two squids with ACLs based source and destination. If you decide to use this service, please contact igi-noc@lists.italiangrid.it providing:
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Eg. for VO gridit: /etc/cvmfs/config.d/gridit..conf:CVMFS_HTTP_PROXY="http://squid01.cnaf.infn.it:3128|http://squid02.cnaf.infn.it:3128" | ||||||||
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> > | Using National Squid service for failoverIf you run local squid service, you can also add the national squid servers for failover case.CVMFS_HTTP_PROXY is used to specify the squid server(s) to be used for local caching. It supports both load balance and failover:
Configuration test for failoverThanks to E. Mazzoni, INFN-PISA.# cmssquid.pi.infn.it and cmssquid2.pi.infn.it primary group, squid01.cnaf.infn.it and squid01.cnaf.infn.it failover group # Normal behaviour [root@stormgf1 ~]# cvmfs_talk -i belle.cern.ch proxy info Load-balance groups: [0] http://cmssquid.pi.infn.it:3128, http://cmssquid2.pi.infn.it:3128 [1] http://squid01.cnaf.infn.it:3128, http://squid02.cnaf.infn.it:3128 Active proxy: [0] http://cmssquid.pi.infn.it:3128 # Failover behaviour (cmssquid.pi.infn.it and cmssquid2.pi.infn.it denied by acl on router) [root@stormgf1 ~]# cvmfs_talk -i belle.cern.ch proxy info Load-balance groups: [0] http://cmssquid2.pi.infn.it:3128, http://cmssquid.pi.infn.it:3128 [1] http://squid02.cnaf.infn.it:3128, http://squid01.cnaf.infn.it:3128 Active proxy: [1] http://squid02.cnaf.infn.it:3128 | |||||||
TableList of the cvmfs servers and sites supported by national squid server.
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