prosody-modules
ca3c2d11823c
mod_storage_multi/README.markdown
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mod_storage_multi/README.markdown @ 5571:ca3c2d11823c
mod_pubsub_feeds: Track latest timestamp seen in feeds instead of last poll
This should ensure that an entry that has a publish timestmap after the
previously oldest post, but before the time of the last poll check, is
published to the node.
Previously if an entry would be skipped if it was published at 13:00
with a timestamp of 12:30, where the last poll was at 12:45.
For feeds that lack a timestamp, it now looks for the first post that is
not published, assuming that the feed is in reverse chronological order,
then iterates back up from there.
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Sun, 25 Jun 2023 16:27:55 +0200 |
| parent | 1887: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"`.
