view mod_stats39/README.markdown @ 4976:75b6e5df65f9

various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents bac3dae031ee
children
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---
labels:
- 'Statistics'
...

This module provides **public** access to Prosodys
[internal statistics][doc:statistics] trough the
[XEP-0039: Statistics Gathering] protocol. This is a simple protocol
that returns triplets of name, unit and value for each know statistic
collected by Prosody. The names used are the internal names assigned by
modules or statsmanager, names from the registry are **not** used.

# Configuration

Enabled as usual by adding to [`modules_enabled`][doc:modules_enabled]:

```lua
-- Enable Prosodys internal statistics gathering
statistics = "internal"

-- and enable the module
modules_enabled = {
    -- other modules
    "stats39";
}
```

# Usage


## Example

Statistics can be queried from the XML console of clients that have one:

```xml
C:
<iq type="get" to="example.com" id="dTMERjt5">
  <query xmlns="http://jabber.org/protocol/stats"/>
</iq>

S:
<iq type="result" to="example.com" id="dTMERjt5">
  <query xmlns="http://jabber.org/protocol/stats">
    <stat name="cpu.clock:amount" value="0.212131"/>
    <stat name="cpu.percent:amount" value="0"/>
    <stat name="memory.allocated:amount" value="8.30259e+06"/>
    <stat name="memory.allocated_mmap:amount" value="401408"/>
    <stat name="memory.lua:amount" value="6.21347e+06"/>
    <stat name="memory.returnable:amount" value="13872"/>
    <stat name="memory.rss:amount" value="2.03858e+07"/>
    <stat name="memory.total:amount" value="6.53885e+07"/>
    <stat name="memory.unused:amount" value="14864"/>
    <stat name="memory.used:amount" value="8.28773e+06"/>
    <stat name="/*/mod_c2s/connections:amount" value="0"/>
    <stat name="/*/mod_c2s/ipv6:amount" value="0"/>
    <stat name="/*/mod_s2s/connections:amount" value="0"/>
    <stat name="/*/mod_s2s/ipv6:amount" value="0"/>
    <stat name="stats.collection:duration" unit="seconds" value="0.000125647"/>
    <stat name="stats.processing:duration" unit="seconds" value="0"/>
  </query>
</iq>
```

# Compatibly

  Prosody version   Works
  ----------------- -------
  0.9.x             No
  0.10.x            Yes
  0.11.x            Yes
  Trunk[^1]         No

[^1]: Does not work with trunk since the [change to
    OpenMetrics](https://hg.prosody.im/trunk/rev/5f15ab7c6ae5)