File

mod_storage_appendmap/README.markdown @ 3620:fb1c8dee2ead

mod_smacks: piggyback ack request onto ack response if queue is not empty, use native stoppable timers if supported
author tmolitor <thilo@eightysoft.de>
date Sat, 15 Jun 2019 01:34:52 +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