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misc: only allow 1 error from each audit/gatherer #6215

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merged 2 commits into from
Oct 17, 2018
Merged

misc: only allow 1 error from each audit/gatherer #6215

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3f3e5af
misc: only allow 1 error from each audit/gatherer
patrickhulce Oct 12, 2018
c1ecfb1
once per error per audit
patrickhulce Oct 15, 2018
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13 changes: 13 additions & 0 deletions lighthouse-core/lib/sentry.js
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Original file line number Diff line number Diff line change
Expand Up @@ -65,6 +65,8 @@ function init(opts) {
sentryDelegate.captureBreadcrumb = (...args) => Sentry.captureBreadcrumb(...args);
sentryDelegate.getContext = () => Sentry.getContext();

// Keep a record of exceptions per audit/gatherer so we can just report once
const sentryExceptionCache = new Map();
// Special case captureException to return a Promise so we don't process.exit too early
sentryDelegate.captureException = async (err, opts = {}) => {
// Ignore if there wasn't an error
Expand All @@ -74,6 +76,17 @@ function init(opts) {
// @ts-ignore Non-standard property added to flag error as not needing capturing.
if (err.expected) return;

const tags = opts.tags || {};
if (tags.audit) {
if (sentryExceptionCache.has(tags.audit)) return;
sentryExceptionCache.set(tags.audit, true);
}

if (tags.gatherer) {
if (sentryExceptionCache.has(tags.gatherer)) return;
sentryExceptionCache.set(tags.gatherer, true);
}

// Sample known errors that occur at a high frequency.
const sampledErrorMatch = SAMPLED_ERRORS.find(sample => sample.pattern.test(err.message));
if (sampledErrorMatch && sampledErrorMatch.rate <= Math.random()) return;
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