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Add a separate configure() method

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configure() sets options in the metrics module, but does not start the
default metrics collectors and the profiling agents.
This commit is contained in:
Eric Mc Sween 2020-09-11 15:54:58 -04:00
parent 3c9c17c22f
commit c05bd83e24
1 changed files with 19 additions and 5 deletions
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24
libraries/metrics/index.js
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@ -10,12 +10,25 @@ const destructors = []
require('./uv_threadpool_size')
function initialize(_name, opts = {}) {
appname = _name
collectDefaultMetrics({ timeout: 5000, prefix: buildPromKey() })
/**
* Configure the metrics module
*/
function configure(opts = {}) {
if (opts.appName) {
appname = opts.appName
}
if (opts.ttlInMinutes) {
prom.ttlInMinutes = opts.ttlInMinutes
}
}
/**
* Configure the metrics module and start the default metrics collectors and
* profiling agents.
*/
function initialize(_name, opts = {}) {
configure({ ...opts, appName: _name })
collectDefaultMetrics({ timeout: 5000, prefix: buildPromKey() })
console.log(`ENABLE_TRACE_AGENT set to ${process.env.ENABLE_TRACE_AGENT}`)
if (process.env.ENABLE_TRACE_AGENT === 'true') {
@ -71,7 +84,7 @@ function injectMetricsRoute(app) {
)
}
function buildPromKey(key = '') {
function buildPromKey(key) {
return key.replace(/[^a-zA-Z0-9]/g, '_')
}
@ -113,7 +126,7 @@ function summary(key, value, opts = {}) {
}
}
function timing(key, timeSpan, sampleRate, opts = {}) {
function timing(key, timeSpan, sampleRate = 1, opts = {}) {
key = buildPromKey('timer_' + key)
opts.app = appname
opts.host = hostname
@ -168,6 +181,7 @@ function close() {
}
module.exports = {
configure,
initialize,
registerDestructor,
injectMetricsRoute,