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<p>People,</p>
<p>Please find the notes below and at</p>
<p>
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki/index.php/GlueX_Containers_Meeting,_March_16,_2018">https://halldweb.jlab.org/wiki/index.php/GlueX_Containers_Meeting,_March_16,_2018</a></p>
<p> - Mark</p>
<p>_____________</p>
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<h2 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">GlueX Containers Meeting, March 16, 2018</span></h2>
<span class="mw-headline" id="Notes"></span>
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<p>Present: Thomas Britton, Mark Ito, Sean Dobbs, David
Lawrence, Richard Jones
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<li> Sean mentioned analysis launches as a candidate
activity for grid/hpc</li>
<li> David: there is a big push to use NERSC for data
reconstruction, issue is input (raw) data transport</li>
<li> Richard pointed out that when Edgar Farjado put
together the Submit Host, we told him we were going to
do mainly Monte Carlo. There might be system
configuration parameters that should be changed
(hardware or software) to support reconstruction of
raw data. We might want to meet with Edgar again.</li>
<li> David got CVMFS going on his MacBook. "Very easy".
Could not see the CVMFS partition from inside a Docker
container. A worry for NERSC.</li>
<li> Mark and Thomas have still have to work on a system
for transferring grid output files from the submit
host to cache.</li>
<li> Thomas: random trigger files are rsynched to the
/osgpool partition on the submit host and shipped with
jobs via the Condor mechanism. Files are hundreds of
megabytes.</li>
<li> Sean has mentioned Stash as an OSG mechanism for
distributing input files. Random triggers are a good
candidate for this.</li>
<li> Thomas: reconstruction could be done in MCwrapper</li>
<li> David mentioned a Docker swarm as a technique for
managing our various containers</li>
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