File

mod_storage_appendmap/README.markdown @ 3611:235d986ac20f

misc/munin/prosody_: Add a total_s2s counter to work with mod_statistics_statsman mod_s2s doesn't currently count s2sin and s2sout separately, so this is a compromise for now.
author Kim Alvefur <zash@zash.se>
date Tue, 28 May 2019 21:32:50 +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