My worst experience was when I was on a cross-country train writing code for a project whose database was mysql. No internet, intentionally. Something happened with one of my inserts (can't remember what exactly) and I had to restart mysqld. Problem was, with the bad insert, mysqld took longer than 30s to start, which forced systemd to restart it because of a default, undocumented setting to restart a service if it's not up after 30s. Again. And again. And again. Nothing in the documentation hinted that this was a feature of systemd anywhere, and I was stuck troubleshooting that nonsense instead of just writing code.
Systemd is just filled with undocumented crap and features that shouldn't exist by default, leading to headache after headache after headache. Such a pain in the ass.
My worst experience was when I was on a cross-country train writing code for a project whose database was mysql. No internet, intentionally. Something happened with one of my inserts (can't remember what exactly) and I had to restart mysqld. Problem was, with the bad insert, mysqld took longer than 30s to start, which forced systemd to restart it because of a default, undocumented setting to restart a service if it's not up after 30s. Again. And again. And again. Nothing in the documentation hinted that this was a feature of systemd anywhere, and I was stuck troubleshooting that nonsense instead of just writing code.
Systemd is just filled with undocumented crap and features that shouldn't exist by default, leading to headache after headache after headache. Such a pain in the ass.