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annotate mod_statistics_statsman/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 bac3dae031ee
children
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1 A module providing a streaming statistics interface like
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2 [mod_statistics] but based on the new [statistics API][doc:statistics]
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3 introduced in Prosody 0.10.
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5 # Usage
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7 To use, enable the built-in statistics like so:
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8
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9 ```lua
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10 statistics = "internal"
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11 ```
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12
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13 Then, in `modules_enabled`, replace `"statistics"` with
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14 `"statistics_statsman"` and the various `"statistics_<something>"`
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15 with equivalent `"measure_<something>"`.
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18 # Compatibility
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20 ------- --------------------
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21 trunk Does not work [^1]
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22 0.11 Should work
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23 0.10 Should work
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24 ------- --------------------
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26 [^1]: not after
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27 [5f15ab7c6ae5](https://hg.prosody.im/trunk/rev/5f15ab7c6ae5)