Show HN: EnnoDB, a simple NoSQL database(twigtechnology.com) |
Show HN: EnnoDB, a simple NoSQL database(twigtechnology.com) |
> The Raspberry Pi that I used for developing and running the server is a fantastic little machine, and its specs encouraged the compact, memory-efficent design.
> I set up a quick JavaScript example that reads and writes values from the database running on my home server, at http://enno.kn-bremen.de/keyval.html.*
Really cool. Is the home server an actual raspberry ?
I've got a RPi 2B sitting here that I want to fail over to sometime this weekend, which gives me an opportunity to think about that process, and how EnnoDB could make it easier. My current thinking is: switch to read-only mode, rsync the database to the new host, spin up another process there, then flip the IP address on the router. Probably going to need an admin interface for that. Fun!
This reminds me, I should probably write the database log to the SSD, not the SD card. The new Pi's root filesystem only has 2GB, I was running out of media.
Can this database be also embedded in applications?
It's not that uncommon in MySQL-land to name things after people, so I guess it fits right in! MySQL itself was named after Monty's daughter, and MariaDB was named after Monty's other daughter.
Though I must confess that I originally thought EnnoDB meant "Ain't no DB" in a certain accent :p
If you are building on external technologies, like a classic LAMP stack, then it helps to know a bit about those, too. Because software has bugs, and sometimes that bug is in apache, in PHP itself, in the PHP memcache library, or in MySQL. And woe be unto you if you are the first person to run into that bug, because congratulations, now you get to diagnose and fix it. Especially if it's open source. If it's proprietary code, you're in a whole other terrible mess.
The more complex the technology stack that you are building on, the more likely that it has crippling bugs, and the less likely that you're still able to figure them out. So in some sense, there is a rationale for building my own NoSQL store: I understand every part of my stack, and I know how to debug it if it should go wrong.