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mod_presence_cache/README.markdown @ 2147:ed2bb50d4f91
mod_presence_cache: Switch to using util.cache for limiting size of cache
author | Kim Alvefur <zash@zash.se> |
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date | Fri, 01 Apr 2016 15:18:56 +0200 |
parent | 2146:39d958f4a0c3 |
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--- a/mod_presence_cache/README.markdown Fri Apr 01 15:15:56 2016 +0200 +++ b/mod_presence_cache/README.markdown Fri Apr 01 15:18:56 2016 +0200 @@ -1,17 +1,13 @@ --- -summary: Cache presence incoming presence +summary: Cache presence from remote users ... Introduction ============ -This module stores presence from users contact even when they are -offline, so that the client can see who is online faster when they sign -in, and won't have to wait for remote servers to reply. - -Note that in its current form, the number of presence stanzas sent to a -client is doubled, as the client would get both the cached stanzas and -replies to presence probes. Also see [mod\_throttle\_presence]. +This module stores a timestamp of the latest presence received from +users contacts so that the client can see who is online faster when they +sign in, and won't have to wait for remote servers to reply. Configuration ============= @@ -26,16 +22,11 @@ Advanced configuration ====================== - - +The size of the cache is tuneable: -TODO -==== + presence_cache_size = 99 -- Deduplication, i.e don's send stanzas that are identical to the last - seen. -- Cache invalidation or expiry, eg if a remote server goes down or is - gone a long time. -- Sending probes at some interval to keep the cache reasonably fresh. +Compatibility +============= - +Requires 0.10 or later