File

mod_storage_appendmap/README.markdown @ 5353:14b6397cd6de

mod_audit_status: Fix error on first start Fixes 'attempt to index a nil value' the first time this module is loaded, since there's no data yet.
author Kim Alvefur <zash@zash.se>
date Tue, 18 Apr 2023 21:48:31 +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