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28 lines
1 KiB
CoffeeScript
28 lines
1 KiB
CoffeeScript
URL = require "url"
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seconds = 1000
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# In Node 0.10 the default is 5, which means only 5 open connections at one.
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# Node 0.12 has a default of Infinity. Make sure we have no limit set,
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# regardless of Node version.
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require("http").globalAgent.maxSockets = Infinity
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require("https").globalAgent.maxSockets = Infinity
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module.exports = OpenSocketsMonitor =
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monitor: (logger) ->
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interval = setInterval () ->
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OpenSocketsMonitor.gaugeOpenSockets()
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, 5 * seconds
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Metrics = require "./metrics"
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Metrics.registerDestructor () ->
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clearInterval(interval)
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gaugeOpenSockets: () ->
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Metrics = require "./metrics"
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for url, agents of require('http').globalAgent.sockets
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url = URL.parse("http://#{url}")
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hostname = url.hostname?.replace(/\./g, "_")
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Metrics.gauge "open_connections.http.#{hostname}", agents.length
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for url, agents of require('https').globalAgent.sockets
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url = URL.parse("https://#{url}")
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hostname = url.hostname?.replace(/\./g, "_")
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Metrics.gauge "open_connections.https.#{hostname}", agents.length
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