Show HN: EDB – A framework to make and manage backups of your database

Filed issues related to crypto: https://github.com/RoxasShadow/EDB/issues/created_by/dchest

The mysql driver needs additional work. In particular, it needs a '--single-transaction' flag, or a global lock, to ensure that the dump is consistent - particularly if you want to dump multiple databases concurrently.

Doing one dump per table with chunking (each file has N rows) would help with both speed and disk sizes of backups by allowing S3 or some other program to implement de-duplication between incremental backups.

It also wouldn't hurt to capture the binlog position, if available, to enable point in time recovery.

Have a look at mydumper for an idea of how another tool implemented these:

https://launchpad.net/mydumper

Simple, clean, straightforward. I've done similar things in bash before but not bothered to publish :) It's a good idea though to have an ecosystem of simple but flexible tools like this.

Here's another idea we implemented alongside a backup system like this. Say you run a backup daily; you can run another script to prune the archives, keeping D most recent daily archives, W most recent weekly archives, M most recent monthly archives, and all yearly archives.

I've recently created a similar tool at our company.

We found out that dumping the database table by table in a parallelized way is much faster than a full database mysqldump.

There's also mysqlpump soon available in mysql 5.7 to replace mysqldump and works in parallel.