view mod_storage_appendmap/README.markdown @ 2877:d6badf56ab5f

mod_http_upload_external: add support for XEP-0363 version 0.3
author Jonas Wielicki <jonas@wielicki.name>
date Sun, 11 Feb 2018 16:11:17 +0100
parents 88474dd1af48
children
line wrap: on
line source

---
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