- Gridpp-Dirac-Users - imperial.ac.uk

issue with VO extensions to proxies
by Daniela Bauer 24 Sep '21

24 Sep '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Dear All, The logic for where DIRAC looks for VO vomsserver specific information has changed in recent releases and unfortunately it does not always work for the GridPP DIRAC instance. We have raised the issue with the DIRAC core developers. In the meantime, if (and only if) you find that you suddenly cannot generate a voms proxy any longer, please add the lines below at the end of your bashrc, this should hopefully fix the issue: export X509_VOMS_DIR="$DIRAC/etc/grid-security/vomsdir" export X509_VOMSES="$DIRAC/etc/grid-security/vomses" Apologies for any inconvenience, Daniela -- Sent from my guinea pig enhanced living room ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: Working from home, please use email. http://www.hep.ph.ic.ac.uk/~dbauer/

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Sandbox retrieval
by Daniela Bauer 23 Aug '21

23 Aug '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Dear All, For people who are members of multiple groups or VOs: Please ensure that you use the same group/VO to manage your jobs that you used to submit the jobs. Up until now you were able to e.g. get your Sandbox submitted from a different group (e.g user/prod) back without switching between groups, this is no longer possible. Regards, Daniela -- Sent from my guinea pig enhanced living room ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: Working from home, please use email. http://www.hep.ph.ic.ac.uk/~dbauer/

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Singularity container issue on `CLOUD.UKI-LT2-IC-HEP-lz.uk`
by Andrew S Naylor 06 Aug '21

06 Aug '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi, I'm running a local singularity image in a dirac job, this job runs fine on `LCG.UKI-LT2-IC-HEP.uk` but when on `CLOUD.UKI-LT2-IC-HEP-lz.uk` I get a container creation failed: Error message: ``` INFO: Converting SIF file to temporary sandbox... FATAL: while extracting hyper_lite__0_1.sif: root filesystem extraction failed: extract command failed: FATAL: container creation failed: multiple devpts instances unsupported and /dev/pts configured : exit status 255 ``` This is my singularity command (mounting current working directory, x509 proxy location and cvmfs): ``` $SINGULARITY_BIN run --contain --env X509_USER_PROXY=${X509_USER_PROXY} \ -B $PWD -B $X509_USER_PROXY -B /cvmfs \ $LOCAL_IMAGE /bin/sh -l $JOB_SCRIPT ``` Also by default i'm using `/cvmfs/ oasis.opensciencegrid.org/mis/singularity/current/bin/singularity` for the singularity binary, unless user namespaces aren't enabled on that system and then it uses the local singularity instead. I wonder if the issue is with something i'm mounting or is it something else? Thanks, Andrew -- ____________________________ *Andrew Naylor* Astroparticle Physics PhD Student Department of Physics and Astronomy The University of Sheffield *Office*:E18a, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK *Email*:andrew.naylor@sheffield.ac.uk

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How to update "application status" in dirac job monitor?
by Anna Scaife 04 Aug '21

04 Aug '21

Hello I was wondering I there is a way for a general user (i.e. me) to dynamically change what is displayed under “Application status” in the Job monitor when an application is running? At the moment it just says “Unknown” for my applications and I was wondering if I could change it to be a bit more informative since the applications can be quite long and the StdOut peek doesn’t always make it obvious how far things have got. Is there something I can add to the run script to update that field? Cheers Anna

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no selected sites match platform EL7
by Anna Scaife 29 Jul '21

29 Jul '21

Hello I’m getting a (repeated) error when I try to submit a job that causes it to fail with the message: "no selected sites match platform EL7” I tried removing the "Platform =“ in the JDL but this doesn’t seem to make any difference. Do you have any suggestions? Examples: 30707810, 30707891 Thanks Anna

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Peek StandardOutput
by Sophie King 22 Jul '21

22 Jul '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hello I recently switched to using the API for job submission, rather than writing a JDL and using dirac-wms-job-submit. However, I find that when using the API the 'Peek StandardOutput', just shows some generic info about what I am running, rather than the actual output. Whereas when I used the old method I can I actually peak at my job. If I am testing or debugging, or if something is taking an unusually long time, the ability to 'Peek' was a really nice feature of the GUI. Is there a way to restore this behaviour, while still using the API to submit ? Cheers Sophie

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EPoll: Bad file descriptor polling for events
by Sophie King 07 May '21

07 May '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hello In the last few days I have noticed a small fraction of my jobs start to fail instantly with the error: (probably ~ 1/1000, though some sites maybe seem more susceptible than others) EPoll: Bad file descriptor polling for events (seems to be after <1s CPU time) The only thing I have changed in my jobs since this started to happen is that I now use the feature where you can specify LFN:/your/file in the inputSandbox (previously i was just manually issuing a download command inside the job). To simplify the situation, I made a test job, that has the LFN of a text file in the inputSandbox, and then the jobs just 'cat's out the content. Repeating this job a few times at IN2p3 (where I had seen this happen the most frequently, but it has happened at other sites too), I managed to bump into the error. e.g. DIRAC JOB ID: 29573283 I ran some test jobs without the LFN in the inputSandbox and they all ran fine (though this was a small sample so can't really conclude anything from that). So it seems likely it is linked to my use of inputSandbox to download files, but it is relatively rare that it actually causes an issue. Is this a known thing? Am I doing something wrong.. should I be using inputSandbox in this way? Cheers Sophie

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Mini DIRAC Users Workshop
by Daniela Bauer 14 Apr '21

14 Apr '21

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Dear All, There will be a mini (2 half days) virtual DIRAC users workshop on May 10/11. It's a good opportunity to interact with the DIRAC developers and to see what is coming up in DIRAC. You can find the agenda here: https://indico.cern.ch/event/852597/ If you are planning to attend, could you please register, even if you just plan to listen in to the talks ? (There is no fee.) If you have a topic you would like to see discussed and/or if you would be willing to give a brief talk on your experience with DIRAC, please let me know. Thanks, Daniela -- Sent from my guinea pig enhanced living room ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: Working from home, please use email. http://www.hep.ph.ic.ac.uk/~dbauer/

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Brief GridPP DIRAC maintenance today 5pm
by Simon Fayer 15 Feb '21

15 Feb '21

Hi all, We need to urgently allocate more memory to the main GridPP DIRAC database server; we plan on doing this today at 5pm and it should take less than 5 minutes. We don't expect this to cause any problems for running jobs but DIRAC services may be briefly unavailable while this work takes place. Regards, Simon

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SetOutputData help
by Groves, Andrew 28 Dec '20

28 Dec '20

******************* This email originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list https://spam.ic.ac.uk/SpamConsole/Senders.aspx to disable email stamping for this address. ******************* Hi Im trying to use the SetOutputData however im unsure how to use it. Im trying to use it as SetOutputData(['test.root'],['UKI-NORTHGRID-LIV-HEP-disk'],['/mu3e.org/prod/build4.4.3/test.root']) Where the first is the sandbox file location, the second is the disk and the third is where I want it saved in the dirac file catolog. However I seem to have it wrong? Thanks Andrew

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