view mod_storage_appendmap/README.markdown @ 5169:1071a420ff6f

mod_muc_moderation: Refactor to prepare for new version of XEP-0425 Plan is to add support for both versions concurrently for a transition period while clients upgrade.
author Kim Alvefur <zash@zash.se>
date Sun, 19 Feb 2023 17:51:45 +0100
parents 88474dd1af48
children
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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