Mercurial > prosody-modules
annotate mod_log_events_by_memory/mod_log_events_by_memory.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 | 5fe34e5f9829 |
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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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3 local treshold = module:get_option_number("log_memory_threshold", 20*1024); |
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4 |
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5 function event_wrapper(handlers, event_name, event_data) |
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6 local memory_before = collectgarbage("count")*1024; |
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7 local ret = handlers(event_name, event_data); |
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8 local memory_after = collectgarbage("count")*1024; |
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9 if (memory_after - memory_before) > treshold then |
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10 module:log("warn", "Memory increased by %g bytes while processing event '%s'", (memory_after - memory_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 |