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annotate mod_limits.wiki @ 352:31eb570f6bc0
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| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Mon, 13 May 2013 20:02:51 +0200 |
| parents | 5999d2eb2149 |
| children |
| rev | line source |
|---|---|
| 289 | 1 #summary Connection-level rate limiting |
| 2 #labels Stage-Beta | |
| 3 | |
| 4 = Introduction = | |
| 5 | |
| 6 On some servers, especially public ones, it is desired to make sure that everyone gets their fair share of system resources (and no more). | |
| 7 | |
| 8 mod_limits allows you to specify traffic bandwidth limits, preventing any single connection hogging the server's CPU, RAM and bandwidth. | |
| 9 | |
| 10 = Details = | |
| 11 | |
| 12 mod_limits detects when a connection has exceeded its traffic allowance and temporarily ignores a connection. Due to the way TCP and the OS's network API works no data is lost, only slowed. | |
| 13 | |
| 14 = Configuration = | |
| 15 Currently mod_limits is configured per connection type. The possible connection types are: | |
| 16 | |
| 17 * c2s | |
| 18 * s2sin | |
| 19 * s2sout | |
| 20 * component | |
| 21 | |
|
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Edited wiki page mod_limits through web user interface.
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changeset
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22 The limits are specified like so in the *global* section of your config (they cannot be per-host): |
| 289 | 23 |
| 24 {{{ | |
| 25 limits = { | |
| 26 c2s = { | |
| 27 rate = "3kb/s"; | |
| 28 burst = "2s"; | |
| 29 }; | |
| 30 s2sin = { | |
| 31 rate = "10kb/s"; | |
| 32 burst = "5s"; | |
| 33 }; | |
| 34 } | |
| 35 }}} | |
| 36 | |
| 37 All units are in terms of _bytes_, not _bits_, so that "kb/s" is interpreted as "kilobytes per second", where a kilobyte is 1000 bytes. | |
| 38 | |
| 39 = Compatibility = | |
| 291 | 40 || 0.9 || Works || |
| 41 || 0.8 || Doesn't work(`*`) || | |
| 289 | 42 |
| 291 | 43 (`*`) This module can be made to work in 0.8 if you do two things: |
| 44 | |
| 289 | 45 # Install [http://hg.prosody.im/0.9/raw-file/d46948d3018a/util/throttle.lua util.throttle] into your Prosody source's util/ directory. |
| 46 # If you use libevent apply [http://prosody.im/patches/prosody08-mod-limits-fix.patch this patch] to net/server_event.lua. |