Recent Posts

GRACC Transition Visualization

2 minute read

The OSG is in the progress of transitioning from an older ElasticSearch (ES) cluster to a new version. Part of this process is reindexing (copying) data fro...

LetsEncrypt for Multiple Hosts

1 minute read

Using LetsEncrypt for certificate creation and management has made secure communications much easier. Instead of contacting the IT department of your univer...

StashCache By The Numbers

3 minute read

The StashCache federation is comprised of 3 components: Origins, Caches, and Clients. There are additional components that increase the usability of StashCa...

HTCondor Pull Mode

1 minute read

For a recent project to utilize HPC clusters for HTC workflows, I had to add the ability to transfer the input and output sandboxes to and from HTCondor. HT...

Cleaning Up GRACC

2 minute read

The GRid ACcounting Collector (GRACC) is the OSG’s new version of accounting software, replacing Gratia. It has been running in production since March 2017....