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

Jobs not being picked up
by Raja Nandakumar 30 Jul '19

30 Jul '19

Hi, My DUNE jobs ID 18092650, 18116569, 18176428 are not being picked up in the sense that it looks like there are no pilots being submitted for them (they target specific sites due to the input data locations). Is there any way to tell if there is anything specific that I am doing wrong? Thanks and Cheers, Raja.

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The DIRAC service is available again
by Daniela Bauer 20 Jun '19

20 Jun '19

Hi All, The DIRAC server is available again. Unfortunately during the move we lost about 30min of data during the transfer, so if you cannot find your job it probably fell through the cracks in that time gap. Please let us know of any problems. (There might be a delay in answering due to the data centre move, please bear with us.) Please also note, that while the DIRAC server is up, the LCG.UKI-LT2-IC-HEP.uk site is down and will be down at least until Wednesday morning. regards, Daniela -- Sent from the pit of despair ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: +44-(0)20-75947810 http://www.hep.ph.ic.ac.uk/~dbauer/

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DIRAC downtime Thursday 20 June
by Daniela Bauer 17 Jun '19

17 Jun '19

Hi All, Imperial College is moving all its computing from its current location in South Kensington to a data centre in Slough. This will result in the following downtimes: The DIRAC server will be down Thursday 20th June 10:00 - 16:00. The Imperial site (LCG.UKI-LT2-IC-HEP.uk) will be down Thursday 20/6 to Tuesday 25/6 inclusive. Regards, Daniela -- ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: +44-(0)20-75947810 http://www.hep.ph.ic.ac.uk/~dbauer/

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LZ: Change of voms server DN requires update to UI
by Daniela Bauer 22 Mar '19

22 Mar '19

Dear All, the LZ VO is updating the DN of one of their voms-servers. The GridPP DIRAC server has been updated accordingly. If you are an LZ user: To pick up the new configuration you can either reinstall your UI or if you really don't want to do that amend the configuration directly by the replacing the content of [your_ui]/etc/grid-security/vomsdir/lz/voms.hep.wisc.edu.lsc (currently: /DC=org/DC=opensciencegrid/O=Open Science Grid/OU=Service/CN= voms.hep.wisc.edu /DC=org/DC=cilogon/C=US/O=CILogon/CN=CILogon OSG CA 1) with /DC=org/DC=incommon/C=US/ST=WI/L=Madison/O=University of Wisconsin-Madison/OU=OCIS/CN=voms.hep.wisc.edu /C=US/O=Internet2/OU=InCommon/CN=InCommon IGTF Server CA and etc/grid-security/vomses/lz should now read: lx03:2019_Mar_22_1339_lz_EL7 > cat etc/grid-security/vomses/lz "lz" "voms.hep.wisc.edu" "15001" "/DC=org/DC=incommon/C=US/ST=WI/L=Madison/O=University of Wisconsin-Madison/OU=OCIS/CN=voms.hep.wisc.edu" "lz" "24" "lz" "lzvoms.grid.hep.ph.ic.ac.uk" "15001" "/C=UK/O=eScience/OU=Imperial/L=Physics/CN=lzvoms.grid.hep.ph.ic.ac.uk" "lz" "24" Regards, Daniela -- Sent from the pit of despair ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: +44-(0)20-75947810 http://www.hep.ph.ic.ac.uk/~dbauer/

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Registering dark data -- how important is GUID?
by Lukas Koch 01 Mar '19

01 Mar '19

Hello all, I am currently implementing a script to remotely register dark data (files present on a storage element, but not registered on the DFC). I am using the `registerFile` method of the `DataManager`, and have access to the files Adler32 checksums, but since they (generally) do not yet exist in the DFC, I do not know how to generate the GUID as it is done in the DIRAC source, i.e. from the md5 checksum. The SE in question does not support dynamic checksum calculation. Is the GUID important at all? It seems like I am able to register files with a GUID of 'None'. There seems to be a method to generate the GUID from the Adler32 sum, but those look kinda "degenerate" with lots of zeroes in them. Cheers Lukas -- Lukas KOCH Particle Physics Department STFC Rutherford Appleton Laboratory Mail: lukas.koch(a)stfc.ac.uk Tel: +44 (0) 1235 44 x6265

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Replicate files without caching locally
by Lukas Koch 01 Feb '19

01 Feb '19

Hello, I am replicating files from one SE to another with `dirac-dms-replicate-lfn`, and it seems like it is always using a local cache to store the transferred file. Is there any way to tell it to use a direct transfer between the two SEs instead of going via the local machine? Cheers Lukas -- Lukas KOCH Particle Physics Department STFC Rutherford Appleton Laboratory Mail: lukas.koch(a)stfc.ac.uk Tel: +44 (0) 1235 44 x6265

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List files outside CLI
by Lukas Koch 15 Nov '18

15 Nov '18

Hello again, this feels like a stupid question, but is there any way to list the files of the DFC *outside* the dirac-dms-filecatalog-cli? That is, I want a list of files and folders inside a known directory, without any interactive stuff going on. I cannot seem to find the right command for that. Cheers Lukas -- Lukas KOCH Particle Physics Department STFC Rutherford Appleton Laboratory Mail: lukas.koch(a)stfc.ac.uk Tel: +44 (0) 1235 44 x6265

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Dirac and other Python software
by Lukas Koch 13 Nov '18

13 Nov '18

Hello, I am trying to implement a Dirac backend for the software we use at T2K to access the grid data. This software is written in Python and now I am facing the problem that Dirac comes with its own Python distribution that does *not* play nicely with either the system Python or virtual environments. So my question is this: Is there a(n easy) way to make Dirac compatible with other Python software? Maybe a way to install the Dirac client in a regular virtual Python environment? Cheers Lukas -- Lukas KOCH Particle Physics Department STFC Rutherford Appleton Laboratory Mail: lukas.koch(a)stfc.ac.uk Tel: +44 (0) 1235 44 x6265

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Python PIP
by Matt Hogan 13 Sep '18

13 Sep '18

Hello DIRAC users, I was trying to install an extension using the python-pip that came with this installation "./dirac-install -r v6r20p5 -i 27 -g v14r1" and I always encounter an SSL error [mhogan@localhost dirac_ui]$ pip install numpy Collecting numpy Could not fetch URL https://pypi.python.org/simple/numpy/: There was a problem confirming the ssl certificate: [Errno 2] No such file or directory - skipping Could not find a version that satisfies the requirement numpy (from versions: ) No matching distribution found for numpy [mhogan@localhost dirac_ui]$ Do other people have issues with the python bundled with DIRAC? Cheers, Matt

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GridPP DIRAC upgrades
by Daniela Bauer 24 Jul '18

24 Jul '18

Hi All, we have upgraded the GridPP DIRAC server to a new major release version. For the majority of users there should be no action required. If however you are using parametric jobs or you have a convenient time to upgrade your DIRAC UI, please upgrade to: ./dirac-install -r v6r20p5 -i 27 -g v14r1 If you see any problems, please let us know. @Ganga (Rob? Mark ?): Would it be possible to update the DIRAC UI used by Ganga ? Regards, Daniela -- Sent from the pit of despair ----------------------------------------------------------- daniela.bauer(a)imperial.ac.uk HEP Group/Physics Dep Imperial College London, SW7 2BW Tel: +44-(0)20-75947810 http://www.hep.ph.ic.ac.uk/~dbauer/

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