Mercurial > prosody-modules
annotate mod_log_events_by_cpu_usage/mod_log_events_by_cpu_usage.lua @ 5648:c217f4edfc4f
misc/mtail: Start of an mtail config
Stashing it here in case anyone wants to continue working on it.
Currently it's only counting log messages by level.
Due to the permissions set by systemd on Prosody logs, mtail never
managed to start correctly until permissions were manually relaxed.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 17 Sep 2023 13:36:30 +0200 |
parents | c0bc97c0ba61 |
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mod_log_events_by_memory: Log events where Lua memory usage increased
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1 module:set_global(); |
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2 |
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mod_log_events_by_cpu_usage: Log events where more than a certain amount of CPU time was spent
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3 local treshold = module:get_option_number("log_cpu_threshold", 0.01); |
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4 |
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5 function event_wrapper(handlers, event_name, event_data) |
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6 local cpu_before = os.clock(); |
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7 local ret = handlers(event_name, event_data); |
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8 local cpu_after = os.clock(); |
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mod_log_events_by_cpu_usage: Log events where more than a certain amount of CPU time was spent
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9 if (cpu_after - cpu_before) > treshold then |
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10 module:log("warn", "%g seconds of CPU usage while processing event '%s'", (cpu_after - cpu_before), event_name); |
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11 end |
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12 return ret; |
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13 end |
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14 |
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15 local http_events = require "net.http.server"._events; |
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16 module:wrap_object_event(http_events, false, event_wrapper); |
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17 |
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18 module:wrap_event(false, event_wrapper); |
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19 function module.add_host(module) |
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20 module:wrap_event(false, event_wrapper); |
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21 end |