Mercurial > prosody-modules
annotate mod_measure_lua/mod_measure_lua.lua @ 4877:adc6241e5d16
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> |
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date | Tue, 18 Jan 2022 18:55:20 +0100 |
parents | 78f1515575ab |
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rev | line source |
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4578
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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1 module:set_global() |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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2 |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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3 local custom_metric = require "core.statsmanager".metric |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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4 local gc_bytes = custom_metric( |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
|
5 "gauge", "lua_heap", "bytes", |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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6 "Memory used by objects under control of the Lua garbage collector" |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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7 ):with_labels() |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
|
8 |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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9 module:hook("stats-update", function () |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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10 local kbytes = collectgarbage("count"); |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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11 gc_bytes:set(kbytes * 1024); |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
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12 end); |
d95fcde6e39d
mod_measure_lua: add openmetrics-spirited way to collect lua memory use
Jonas Schäfer <jonas@wielicki.name>
parents:
diff
changeset
|
13 |
4602
78f1515575ab
mod_measure_lua: Use gauge instead of counter for Lua version (thanks jonas’)
Kim Alvefur <zash@zash.se>
parents:
4601
diff
changeset
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14 custom_metric("gauge", "lua_info", "", "Lua runtime version", { "version" }):with_labels(_VERSION):set(1); |