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annotate mod_s2s_status/README.markdown @ 4877:adc6241e5d16

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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>
date Tue, 18 Jan 2022 18:55:20 +0100
parents b86282953663
children
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1 ---
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2 labels:
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3 - 'Stage-Alpha'
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4 summary: 'Track the status and health of s2s connections'
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5 ...
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6
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7 Introduction
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8 ============
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9
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10 Prosody already gives some insight into current s2s connections, e.g. via
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11 the `s2s:show()` command in the console. This will tell you about all current
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12 s2s connections.
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13
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14 However sometimes this is not enough. For example if an s2s connection fails
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15 to establish, it won't show up - you have to go digging through the log file
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16 looking for the errors instead.
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18 This module maintains a record of recent connection attempts to a remote
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19 domain. You can use this module to answer questions such as:
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20
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21 - Why did the last connection attempt to `example.com` fail?
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22 - When did I last have a successful connection with `example.com`?
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23 - Are my s2s connections generally stable?
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24
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25 **Note:** At the time of writing, this module is not yet finished, and should
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26 be considered a proof-of-concept.
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27
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28 # Configuration
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30 Just load the module as normal:
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32 ``` {.lua}
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33 modules_enabled = {
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34 ...
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35 "s2s_status";
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36 ...
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37 }
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38 ```
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39
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40 # Compatibility
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41
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42 trunk (0.12) and later, e.g. due to [60676b607b6d](https://hg.prosody.im/trunk/rev/60676b607b6d).