After making some improvements to the PDF thumbnails in DSpace 7.5 and DSpace 7.6, I wanted to explore some of the ideas I had highlighted for future work. One of the most promising improvements is switching from the JPEG image format to a more modern format, such as WebP, AVIF, or JPEG-XL.
The default LDAP schema used in 389-ds versions up until 1.3 had been RFC 2307. As a reluctant—and only once every few years—LDAP admin I was mostly ignorant of this fact until a recent upgrade made me pay closer attention. As of version 1.4 it seems the 389-ds project has switched to the RFC 2307bis […]
PostgreSQL locks on an nginx server of mine were through the roof and load had reached 55.0, yet the host only had eight CPUs. Was there some problem, or had a link to our website landed on the front page of the New York Times? A quick look at nginx’s access.log showed a very high […]
snap-sync is a utility that facilitates synchronizing snapshots from a local Btrfs file system to another one (either physically connected to the same machine or on another machine via SSH). Internally it uses snapper to create a local snapshot that functions as a base for incremental Btrfs send/receive to the other volume. Once your first […]
After wasting several hours over each of the last several days troubleshooting this seemingly obscure TLS encryption issue in SSSD I feel compelled to write down some notes. It all started with a switch upgrade in our rack. Two new servers I had just provisioned were failing to find users in our 389 directory server. […]