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annotate mod_http_host_status_check/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 2a16a6c67288
children 694b62d8a82f
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2 labels: Stage-Beta
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3 summary: HTTP Host Status Check
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4 ...
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6 Introduction
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7 ============
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9 This module exposes serves over HTTP the information collected by [mod\_host\_status\_check] and
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10 [mod\_host\_status\_heartbeat] in a convenient format for automated monitoring tools.
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12 Configuration
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13 =============
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15 [mod\_http\_status\_check] relies on Prosodys HTTP server and mod\_http for
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16 serving HTTP requests. See [Prosodys HTTP server
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17 documentation][doc:http] for information about how to
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18 configure ports, HTTP Host names etc.
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20 Simply add this module to modules\_enabled for the host you would like to serve it from.
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22 There is a single configuration option:
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24 ``` {.lua}
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25 -- The maximum number of seconds that a host can go without sending a heartbeat,
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26 -- before we mark it as TIMEOUT (default: 5)
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27 status_check_heartbeat_threshold = 5;
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28 ```
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30 Compatibility
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31 =============
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33 Works with Prosody 0.9.x and later.