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Singularity error in native tasks
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Send message Joined: 13 May 14 Posts: 387 Credit: 15,314,184 RAC: 0 |
Hi, I just discovered one of my hosts has been failing ATLAS native WU for some time, with a singularity issue I have never seen before: 2019-11-29 04:24:14,886: [31mFATAL: [0m container creation failed: hook function for tag layer returns error: failed to create /var/singularity/mnt/session/overlay-lowerdir/var/lib/boinc/slots directory: mkdir /var/singularity/mnt/session/overlay-lowerdir/var/lib/boinc/slots: no such file or directory https://lhcathome.cern.ch/lhcathome/result.php?resultid=253370224 This is a standard CentOS 7 machine with singularity 3.5.0 from EPEL and is only used for crunching ATLAS WU. Of course I could uninstall singularity to use the one from CVMFS but I wondered if anyone had seen this issue and knows how to fix it? |
Send message Joined: 2 May 07 Posts: 2090 Credit: 158,810,598 RAC: 127,327 |
Have also CentOs7 but with singularity 3.4.0-1.2.el7 from CVMFS. Today CMS had got updates from Cern-IT (see news from Ivan). |
Send message Joined: 13 May 14 Posts: 387 Credit: 15,314,184 RAC: 0 |
This host got an auto-update to singularity 3.5.1 a couple of days ago and since then tasks have been completing successfully. I suppose that 3.5.0 has some bugs. This is a good reason to use singularity from CVMFS since it is always validated to work with ATLAS tasks. |
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