Mercurial > prosody-modules
view mod_storage_multi/README.markdown @ 3784:741a1e400de4
mod_nodeinfo2: Count messages per host
author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
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date | Sun, 29 Dec 2019 21:09:03 +0100 |
parents | a7fdab9c14e2 |
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--- summary: Multi-backend storage module (WIP) labels: - NeedDocs - Stage-Alpha ... Introduction ============ This module attemtps to provide a storage driver that is really multiple storage drivers. This could be used for storage error tolerance or caching of data in a faster storage driver. Configuration ============= An example: ``` {.lua} storage = "multi" storage_multi_policy = "all" storage_multi = { "memory", "internal", "sql" } ``` Here data would be first read from or written to [mod\_storage\_memory], then internal storage, then SQL storage. For reads, the first successful read will be used. For writes, it depends on the `storage_multi_policy` option. If set to `"all"`, then all storage backends must report success for the write to be considered successful. Other options are `"one"` and `"majority"`.