Mercurial > prosody-modules
annotate mod_stats39/README.markdown @ 4877:adc6241e5d16
mod_measure_process: Report the enforced limit
The soft limit is what the kernel actually enforces, while the hard
limit is is how far you can change the soft limit without privileges.
Unless the process dynamically adjusts the soft limit, knowing the hard
limit is not as useful as knowing the soft limit.
Reporting the soft limit and the number of in-use FDs allows placing
alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
| author | Kim Alvefur <zash@zash.se> |
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| date | Tue, 18 Jan 2022 18:55:20 +0100 |
| parents | bac3dae031ee |
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| rev | line source |
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1 --- |
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2 labels: |
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3 - 'Statistics' |
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4 ... |
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5 |
| 3844 | 6 This module provides **public** access to Prosodys |
| 7 [internal statistics][doc:statistics] trough the | |
| 8 [XEP-0039: Statistics Gathering] protocol. This is a simple protocol | |
| 9 that returns triplets of name, unit and value for each know statistic | |
| 10 collected by Prosody. The names used are the internal names assigned by | |
| 11 modules or statsmanager, names from the registry are **not** used. | |
| 12 | |
| 13 # Configuration | |
| 14 | |
| 15 Enabled as usual by adding to [`modules_enabled`][doc:modules_enabled]: | |
| 16 | |
| 17 ```lua | |
| 18 -- Enable Prosodys internal statistics gathering | |
| 19 statistics = "internal" | |
| 20 | |
| 21 -- and enable the module | |
| 22 modules_enabled = { | |
| 23 -- other modules | |
| 24 "stats39"; | |
| 25 } | |
| 26 ``` | |
| 27 | |
| 28 # Usage | |
| 29 | |
| 30 | |
| 31 ## Example | |
| 32 | |
| 33 Statistics can be queried from the XML console of clients that have one: | |
| 34 | |
| 35 ```xml | |
| 36 C: | |
| 37 <iq type="get" to="example.com" id="dTMERjt5"> | |
| 38 <query xmlns="http://jabber.org/protocol/stats"/> | |
| 39 </iq> | |
| 40 | |
| 41 S: | |
| 42 <iq type="result" to="example.com" id="dTMERjt5"> | |
| 43 <query xmlns="http://jabber.org/protocol/stats"> | |
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44 <stat name="cpu.clock:amount" value="0.212131"/> |
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45 <stat name="cpu.percent:amount" value="0"/> |
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46 <stat name="memory.allocated:amount" value="8.30259e+06"/> |
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47 <stat name="memory.allocated_mmap:amount" value="401408"/> |
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48 <stat name="memory.lua:amount" value="6.21347e+06"/> |
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49 <stat name="memory.returnable:amount" value="13872"/> |
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50 <stat name="memory.rss:amount" value="2.03858e+07"/> |
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51 <stat name="memory.total:amount" value="6.53885e+07"/> |
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52 <stat name="memory.unused:amount" value="14864"/> |
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53 <stat name="memory.used:amount" value="8.28773e+06"/> |
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54 <stat name="/*/mod_c2s/connections:amount" value="0"/> |
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55 <stat name="/*/mod_c2s/ipv6:amount" value="0"/> |
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56 <stat name="/*/mod_s2s/connections:amount" value="0"/> |
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57 <stat name="/*/mod_s2s/ipv6:amount" value="0"/> |
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58 <stat name="stats.collection:duration" unit="seconds" value="0.000125647"/> |
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59 <stat name="stats.processing:duration" unit="seconds" value="0"/> |
| 3844 | 60 </query> |
| 61 </iq> | |
| 62 ``` | |
| 63 | |
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64 # Compatibly |
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65 |
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66 Prosody version Works |
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67 ----------------- ------- |
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68 0.9.x No |
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69 0.10.x Yes |
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70 0.11.x Yes |
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71 Trunk[^1] No |
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72 |
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73 [^1]: Does not work with trunk since the [change to |
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74 OpenMetrics](https://hg.prosody.im/trunk/rev/5f15ab7c6ae5) |