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mod_munin/README.markdown

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mod_http_muc_log: Reword "back" links
author Kim Alvefur <zash@zash.se>
date Mon, 20 Nov 2017 20:47:38 +0100
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1 ---
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2 labels:
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3 - 'Stage-Beta'
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4 summary: Implementation of the Munin node protocol
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5 ...
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6
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7 Summary
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8 =======
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9
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10 This module implements the Munin reporting protocol, allowing you to
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11 collect statistics directly from Prosody into Munin.
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12
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13 Configuration
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14 =============
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15
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16 There is only one recommended option, `munin_node_name`, which specifies
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17 the name that Prosody will identify itself by to the Munin server. You
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18 may want to set this to the same hostname as in the [SRV record][doc:dns]
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19 for the machine.
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20
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21 ```lua
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22 modules_enabled = {
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23 -- your other modules
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24 "munin",
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25 }
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26
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27 munin_node_name = "xmpp.example.com"
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28 ```
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29
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30 You will also want to enable statistics collection by setting:
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31
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32 ```lua
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33 statistics_interval = 300 -- every 5 minutes, same as munin
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34 ```
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35
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36 ## Summary
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37
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38 All these must be in [the global section][doc:configure#overview].
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39
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40 Option Type Default
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41 ----------------------- -------- ---------------------------
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42 munin\_node\_name string `"localhost"`
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43 munin\_ignored\_stats set `{ }`
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44 munin\_ports set `{ 4949 }`
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45 munin\_interfaces set `{ "0.0.0.0", "::" }`[^1]
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46
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47 [^1]: Varies depending on availability of IPv4 and IPv6
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48
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49 ## Ports and interfaces
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50
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51
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52 `mod_munin` listens on port `4949` on all local interfaces by default.
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53 This can be changed with the standard [port and network configuration][doc:ports]:
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54
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55
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56 ``` lua
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57 -- defaults:
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58 munin_ports = { 4949 }
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59 munin_interfaces = { "::", "0.0.0.0" }
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60 ```
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61
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62 If you already have a `munin-node` instance running, you can set a
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63 different port to avoid the conflict.
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64
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65 ## Configuring Munin
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66
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67 Simply add `munin_node_name` surrounded by brackets to `/etc/munin/munin.conf`:
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68
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69 ``` ini
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70 [xmpp.example.com]
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71 address xmpp.example.com
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72 port 4949
2009
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73 ```
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74
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75 You can leave out `address` if it equal to the name in brackets, and
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76 leave out the `port` if it is the default (`4949`).
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77
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78 Setting `address` to an IP address may sometimes be useful as the Munin
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79 collection server is not delayed by DNS lookups in case of network
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80 issues.
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81
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82 If you set a different port, or if the hostname to connect to is
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83 different from this hostname, make sure to add `port` and/or `address`
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84 options.
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85
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86 See [Munin documentation][muninconf] for more information.
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87
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88 Compatibility
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89 =============
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90
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91 **Requires** Prosody 0.10 or above
2009
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92
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93 [muninconf]: http://guide.munin-monitoring.org/en/stable-2.0/reference/munin.conf.html