view mod_storage_appendmap/README.markdown @ 4368:e0c8d866d58c

mod_http_admin_api: Some fixes and improvements for the groups API Now allows setting a name separate from the id, and updating group membership in a single call.
author Matthew Wild <mwild1@gmail.com>
date Thu, 21 Jan 2021 16:02:31 +0000
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