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mod_smacks/README.markdown

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mod_smacks/README.markdown @ 1803:4d73a1a6ba68

Convert all wiki pages to Markdown
author Kim Alvefur <zash@zash.se>
date Fri, 28 Aug 2015 18:03:58 +0200
parent 1782:mod_smacks/README.wiki@29f3d6b7ad16
child 1876:9c9397d692aa
comparison
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1802:0ab737feada6 1803:4d73a1a6ba68
1 ---
2 labels:
3 - 'Stage-Beta'
4 summary: 'XEP-0198: Reliability and fast reconnects for XMPP'
5 ...
6
7 Introduction
8 ============
9
10 By default XMPP is as reliable as your network is. Unfortunately in some
11 cases that is not very reliable - in some network conditions disconnects
12 can be frequent and message loss can occur.
13
14 To overcome this, XMPP has an optional extension (XEP-0198: Stream
15 Management) which, when supported by both the client and server, can
16 allow a client to resume a disconnected session, and prevent message
17 loss.
18
19 Details
20 =======
21
22 When using XEP-0198 both the client and the server keep a queue of the
23 most recently sent stanzas - this is cleared when the other end
24 acknowledges they have received the stanzas. If the client disconnects,
25 instead of marking the user offline the server pretends the client is
26 still online for a short (configurable) period of time. If the client
27 reconnects within this period, any stanzas in the queue that the client
28 did not receive are re-sent.
29
30 If the client fails to reconnect before the timeout then it is marked
31 offline as normal, and any stanzas in the queue are returned to the
32 sender as a "recipient-unavailable" error.
33
34 Configuration
35 =============
36
37 Option Default Description
38 --------------------------- ----------------- -----------------------------------------------------------------------------------------
39 smacks\_hibernation\_time 300 (5 minutes) The number of seconds a disconnected session should stay alive for (to allow reconnect)
40
41 Compatibility
42 =============
43
44 ----- --------------------------------------------------------------------------------------------------------------------------------------------------------
45 0.9 Works
46 0.8 Works, use version [7693724881b3](http://prosody-modules.googlecode.com/hg-history/7693724881b3f3cdafa35763f00dd040d02313bf/mod_smacks/mod_smacks.lua)
47 ----- --------------------------------------------------------------------------------------------------------------------------------------------------------
48
49 Clients
50 =======
51
52 Clients that support XEP-0198:
53
54 - Gajim
55 - Swift (but not resumption, as of version 2.0 and alphas of 3.0)
56 - Psi (in an unreleased branch)
57 - Yaxim