File

mod_storage_appendmap/README.markdown @ 4871:029ae3c29683

mod_http_xep227: Handle nil/errors opening archive stores This matches how mod_mam opens archive stores. nil can be returned when there is no data in the store yet (it doesn't exist).
author Matthew Wild <mwild1@gmail.com>
date Sun, 16 Jan 2022 15:01:20 +0000
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