Software / code / prosody-modules
Annotate
mod_storage_multi/README.markdown @ 5296:0f5657db1cfc
mod_isolate_host: handle server-generated stanzas
The hook for setting the no_host_isolation is only called for c2s
sessions. This does not work for stanzas generated by the server,
such as PEP notifications or presence probe answers.
To handle that, we do per-stanza checks for the case that the origin
is local.
| author | Jonas Schäfer <jonas@wielicki.name> |
|---|---|
| date | Sat, 01 Apr 2023 12:03:08 +0200 |
| parent | 1887:a7fdab9c14e2 |
| rev | line source |
|---|---|
| 1886 | 1 --- |
| 2 summary: Multi-backend storage module (WIP) | |
| 3 labels: | |
| 4 - NeedDocs | |
|
1887
a7fdab9c14e2
mod_storage_multi: Put in Alpha stage
Kim Alvefur <zash@zash.se>
parents:
1886
diff
changeset
|
5 - Stage-Alpha |
| 1886 | 6 ... |
| 7 | |
| 8 Introduction | |
| 9 ============ | |
| 10 | |
| 11 This module attemtps to provide a storage driver that is really multiple | |
| 12 storage drivers. This could be used for storage error tolerance or | |
| 13 caching of data in a faster storage driver. | |
| 14 | |
| 15 Configuration | |
| 16 ============= | |
| 17 | |
| 18 An example: | |
| 19 | |
| 20 ``` {.lua} | |
| 21 storage = "multi" | |
| 22 storage_multi_policy = "all" | |
| 23 storage_multi = { | |
| 24 "memory", | |
| 25 "internal", | |
| 26 "sql" | |
| 27 } | |
| 28 ``` | |
| 29 | |
| 30 Here data would be first read from or written to [mod\_storage\_memory], | |
| 31 then internal storage, then SQL storage. For reads, the first successful | |
| 32 read will be used. For writes, it depends on the `storage_multi_policy` | |
| 33 option. If set to `"all"`, then all storage backends must report success | |
| 34 for the write to be considered successful. Other options are `"one"` and | |
| 35 `"majority"`. |
