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net.adns: Collect DNS lookup timing metrics

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Nice to have this in OpenMetricts instead of debug logs
This commit is contained in:
Kim Alvefur 2025-02-07 09:22:52 +01:00
parent 3d61988313
commit b4e8a8c6c4
3 changed files with 34 additions and 5 deletions
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14
util/startup.lua
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@ -425,6 +425,19 @@ function startup.init_async()
async.set_schedule_function(timer.add_task);
end
function startup.instrument()
local statsmanager = require "prosody.core.statsmanager";
local timed = require"prosody.util.openmetrics".timed;
local adns = require "prosody.net.adns";
if adns.instrument then
local m = statsmanager.metric("histogram", "prosody_dns", "seconds", "DNS lookups", { "qclass"; "qtype" }, {
buckets = { 1 / 1024; 1 / 256; 1 / 64; 1 / 16; 1 / 4; 1; 4 };
});
adns.instrument(function(qclass, qtype) return timed(m:with_labels(qclass, qtype)); end);
end
end
function startup.init_data_store()
require "prosody.core.storagemanager";
end
@ -922,6 +935,7 @@ function startup.prosody()
startup.load_secondary_libraries();
startup.init_promise();
startup.init_async();
startup.instrument();
startup.init_http_client();
startup.init_data_store();
startup.init_global_protection();