LHC@home

This version should fix the local proxy issue.

This version should fix the local proxy issue.

thanks, Laurence, for the information.
I now tested on 3 hosts - in the initial console it now does say "Ncat: connected to 192.168.0.39:3128" (my local squid), however, all the data the task receives right after start does NOT come from the squid, but rather from the internet. So it seems that something is still going wrong :-(

in the initial console it now does say "Ncat: connected to 192.168.0.39:3128"

forgot to add: "Ncat: 0 bytes sent, 0 bytes received"

Hi Erich.

Looking at a a recent task, I see the following:

2025-03-21 06:02:41 (22992): Guest Log: [INFO] Detected local proxy http://192.168.0.39:3128 in init_data.xml
2025-03-21 06:02:41 (22992): Guest Log: [INFO] Testing connection to 192.168.0.39 on port 3128
2025-03-21 06:02:41 (22992): Guest Log: [INFO] Ncat: Version 7.92 ( https://nmap.org/ncat )
2025-03-21 06:02:41 (22992): Guest Log: Ncat: Connected to 192.168.0.39:3128.
2025-03-21 06:02:41 (22992): Guest Log: Ncat: 0 bytes sent, 0 bytes received in 0.06 seconds.
2025-03-21 06:02:41 (22992): Guest Log: [INFO] 0

Ncat: 0 bytes sent, 0 bytes received in 0.06 seconds.

Ncat sends zero bytes as it is called with the -z option. It just checks that the port is open.

 Guest Log: [INFO] 0

Is the return code for the command which is successful. The following code is then run to configure CVMFS.

   echo -e "function FindProxyForURL(url, host) {\n    return \"PROXY http://${PROXY_HOST}:${PROXY_PORT}; DIRECT\";\n}" >${local_wpad_file}
   cvmfs_config reload

If you are not seeing traffic to your squid, the reason is probably here. Something may be different between CC7 and Alma9

To get the right proxy setting from a wpad file the image requires pacparser (plus it's libs).
It needs to be tested which pacparser version runs on the new image.

Am having difficulty finding this already packaged for EL9. Also the pacparser CLI doesn't seem to be provided anymore from upstream.

https://github.com/manugarg/pacparser

A new version is available with the pactester command.

A new version is available with the pactester command.

Thank you, Laurence, for the information.
I tested, but found out that the access to the local proxy (squid) still does not work. After the initialization phase of the task, roughly 700MB data are downloaded directly from the internet :-(

I will add some debugging statements to to the next release.

Why not revert to the image before Alma and test this on dev?

I have added some additional debugging statements to v300.92 for Windows.

I have added some additional debugging statements to v300.92 for Windows.

I have tested on several hosts - it still does not work. However, what I noticed: the downloaded tasks are still version 300.91 - NOT 300.92

I just finished a couple.
https://lhcathome.cern.ch/lhcathome/result.php?resultid=420617713

I now downloaded v300.92 - the squid proxy still does not work :-(

I am investigating.

v300.93 for Windows contains a few more fixes.

v300.93 for Windows contains a few more fixes.

unfortunately, still not working for squid. Sorry to tell you this. Many thanks anyway for all your efforts so far, Laurence

I have reverted back to v300.60 from January. Please can you confirm that this works.

I have reverted back to v300.60 from January. Please can you confirm that this works.

I was going to make the test - however, although the server status page shows ~2.300 unsent Theory tasks, all three hosts on which I tried to download a Theory task told me "no tasks available for Theory simulation" - no idea what's going wrong ...

I have restarted the server. This is required when we release new versions.