prosody-modules
adc6241e5d16
mod_compact_resource/mod_compact_resource.lua

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mod_compact_resource/mod_compact_resource.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>
date Tue, 18 Jan 2022 18:55:20 +0100
parent 1761:6f34e51a23f0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1761
6f34e51a23f0 mod_compact_resource: Enforces short random resources
Kim Alvefur <zash@zash.se>
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1
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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2 local base64_encode = require"util.encodings".base64.encode;
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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3 local random_bytes = require"util.random".bytes;
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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4
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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5 local b64url = { ["+"] = "-", ["/"] = "_", ["="] = "" };
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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6 local function random_resource()
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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7 return base64_encode(random_bytes(8)):gsub("[+/=]", b64url);
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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8 end
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9
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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10 module:hook("pre-resource-bind", function (event)
6f34e51a23f0 mod_compact_resource: Enforces short random resources
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11 event.resource = random_resource();
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12 end);