Message boards : Number crunching : All my CMS tasks fail with 'Error while computing'
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Sayling Low

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Message 45253 - Posted: 25 Aug 2021, 6:17:15 UTC

I'm running on a Mac Mini (macOS Big Sur 11.5.2) and recently had to rebuild my system disk and the disk where my home directory is located from a Time Machine backup. I also re-installed BOINC (v7.16.19), VirtualBox (6..1.26) and its corresponding Oracle VM VirtualBox Extension Pack. I'm not running a local proxy HTTP server.

My CMS tasks are all failing with 'Error while computing'.

My VMS console showed this (for a single task):
https://www.dropbox.com/s/0a791879nscyjo4/VMS%20console%202021-08-25%20at%2006.15.04.jpg?dl=0
The VMS log for the time of this failure is:
https://www.dropbox.com/s/mhv2ernacrqg04b/VBoxSVC.log.gz?dl=0

My computer is listed twice in my LHC@home 'computers on this account' page. Should I merge these entries?

Sayling
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computezrmle
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Message 45254 - Posted: 25 Aug 2021, 7:42:00 UTC - in response to Message 45253.  

Could be a corrupt CMS vdi or a corrupt LHC BOINC account file.
You may try a project reset first.


1. Set LHC@home to "no new tasks".
2. Cancel and report all tasks currently in your work buffer.
3. Backup your app_config.xml (if there is one).
4. Reset the project.
5. Restart BOINC (just to be sure)
6. Restore your app_config.xml (if there is one)
7. Request fresh work
8. Reload config files (only if you use an app_config.xml)
9. Check how the first task behaves.


If the error persists try to detach from/reattach to the project instead of a reset.


...Should I merge these entries?

Computers can only be merged if at least one entry doesn't show any task records.
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computezrmle
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Message 45255 - Posted: 25 Aug 2021, 11:09:14 UTC

Looks like few other users have similar problems.
So, this could also be a temporary problem caused by a CERN backend system.
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Sayling Low

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Message 45256 - Posted: 25 Aug 2021, 12:30:36 UTC - in response to Message 45254.  

Thanks, I'll try these steps if it turns out not to be a server problem.
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Harri Liljeroos
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Message 45257 - Posted: 25 Aug 2021, 12:32:20 UTC
Last modified: 25 Aug 2021, 12:32:50 UTC

Since CMS came back after Monday's update, I haven't noticed any problem with them (knock on wood).
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Message 45258 - Posted: 25 Aug 2021, 14:33:52 UTC - in response to Message 45257.  

Since CMS came back after Monday's update, I haven't noticed any problem with them (knock on wood).
same here (also knock on wood)
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Message boards : Number crunching : All my CMS tasks fail with 'Error while computing'


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