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mod_storage_appendmap/README.markdown @ 3419:aed47ebd26d3

mod_ignore_host_chatstates: Discard chat state messages sent to a bare host Prevents annoying error replies to be sent in reply to such empty chat state messages. Useful in combination with modules that handle messages to a host.
author Kim Alvefur <zash@zash.se>
date Fri, 28 Dec 2018 04:23:30 +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