File

mod_storage_appendmap/README.markdown @ 4615:451514e2d369

mod_http_pep_avatar: Fix name of module in example README was copied from mod_http_avatar, probably forgot to update that.
author Kim Alvefur <zash@zash.se>
date Tue, 06 Jul 2021 21:12:56 +0200
parent 2818:88474dd1af48
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---
labels:
- 'Stage-Alpha'
- 'Type-Storage'
summary: Experimental map store optimized for small incremental changes
...

This is an experimental storage driver where changed data is appended.
Data is simply written as `key = value` pairs to the end of the file.
This allows changes to individual keys to be written without needing to
write out the entire object again, but reads would grow gradually larger
as it still needs to read old overwritten keys. This may be suitable for
e.g. rosters where individual contacts are changed at a time. In theory,
this could also allow rolling back changes.

Requires 0.10