File

mod_storage_appendmap/README.markdown @ 4888:dc7c9ae15f43

mod_rest: Ensure mod_http is loaded before API demo Fixes an error as it tried to use module:http_url() which doesn't exist before mod_http is loaded
author Kim Alvefur <zash@zash.se>
date Tue, 08 Feb 2022 13:51:41 +0100
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