[ops] database archiving tool

Pierre-Samuel LE STANG pierre-samuel.le-stang at corp.ovh.com
Thu Jun 6 09:13:14 UTC 2019

Hi all,

We finally opensourced the tool on our github repository. You may get it here:


Thanks for your feedbacks.


Pierre-Samuel LE STANG <pierre-samuel.le-stang at corp.ovh.com> wrote on jeu. [2019-mai-09 17:14:35 +0200]:
> Hi all,
> At OVH we needed to write our own tool that archive data from OpenStack
> databases to prevent some side effect related to huge tables (slower response
> time, changing MariaDB query plan) and to answer to some legal aspects.
> So we started to write a python tool which is called OSArchiver that I briefly
> presented at Denver few days ago in the "Optimizing OpenStack at large scale"
> talk. We think that this tool could be helpful to other and are ready to open
> source it, first we would like to get the opinion of the ops community about
> that tool.
> To sum-up OSArchiver is written to work regardless of Openstack project. The
> tool relies on the fact that soft deleted data are recognizable because of
> their 'deleted' column which is set to 1 or uuid and 'deleted_at' column which
> is set to the date of deletion.
> The points to have in mind about OSArchiver:
> * There is no knowledge of business objects
> * One table might be archived if it contains 'deleted' column
> * Children rows are archived before parents rows
> * A row can not be deleted if it fails to be archived
> Here are features already implemented:
> * Archive data in an other database and/or file (actually SQL and CSV
> formats are supported) to be easily imported
> * Delete data from Openstack databases
> * Customizable (retention, exclude DBs, exclude tables, bulk insert/delete)
> * Multiple archiving configuration
> * Dry-run mode
> * Easily extensible, you can add your own destination module (other file
> format, remote storage etc...)
> * Archive and/or delete only mode
> It also means that by design you can run osarchiver not only on OpenStack
> databases but also on archived OpenStack databases.
> Thanks in advance for your feedbacks.
> --
> Pierre-Samuel Le Stang

Pierre-Samuel Le Stang

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