Message boards : CMS Application : Local proxy can now be suggestet for use with CMS
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computezrmle

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Message 6396 - Posted: 7 Jun 2019, 13:23:13 UTC

Today the LHC@home project team activated 2 changes in the VM's bootstrap and the CMS Frontier configuration.
The changes enable the use of a local http-proxy, preferably squid, to cache data from cms-frontier.openhtc.io which is heavily used by CMS.

Typical numbers per day and VM (1-core setup):
Requests: 30000-35000
Cache Ratio: 99% in a small cluster running ~30 CMS VMs concurrently


A local proxy should be configured according to the suggestions here:
https://lhcathome.cern.ch/lhcathome/forum_thread.php?id=4611

To use this local proxy just enter it's name (or IP) and it's TCP port into the proxy form of your BOINC client.

Example:
Address: proxy.foo.bar
Port: 3128



Public proxies outside a volunteers LAN should not be used as they are usually not prepared to serve BOINC requests.
This could cause trouble with LHC projects and other projects your BOINC client is attached to.
If you don't have a local proxy openhtc.io will most likely be the fastest external proxy array you can get for LHC@home.


Thanks to Laurence and Ivan
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Message boards : CMS Application : Local proxy can now be suggestet for use with CMS


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