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chore(feed): cap exponential backoff #3357

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chore(feed): cap exponential backoff #3357

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d7bdb2a
cap exponential backoff
dcaravel Jul 1, 2026
f8a9b1a
empty: trigger CI bundle gen
dcaravel Jul 1, 2026
ffd9110
use predefined backoff values
dcaravel Jul 1, 2026
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11 changes: 9 additions & 2 deletions pkg/vulnloader/nvdloader/loader_feed.go
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Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,14 @@ func (l *feedLoader) downloadFeedForYear(enrichments map[string]*FileFormatWrapp
url := fmt.Sprintf("https://nvd.nist.gov/feeds/json/cve/2.0/nvdcve-2.0-%d.json.gz", year)

const maxRetries = 10
backoff := 10 * time.Second
backoffs := []time.Duration{
15 * time.Second,
30 * time.Second,
1 * time.Minute,
2 * time.Minute,
4 * time.Minute,
5 * time.Minute,
}
var apiFeed *apischema.CVEAPIJSON20
for attempt := 1; ; attempt++ {
var err error
Expand All @@ -62,9 +69,9 @@ func (l *feedLoader) downloadFeedForYear(enrichments map[string]*FileFormatWrapp
if attempt >= maxRetries {
return errors.Wrapf(err, "failed to download feed for year %d after %d attempts", year, attempt)
}
backoff := backoffs[min(attempt-1, len(backoffs)-1)]
log.Warnf("Feed year %d: attempt %d failed: %v; retrying in %s", year, attempt, err, backoff)
time.Sleep(backoff)
backoff *= 2
}

cveItems, err := toJSON10(apiFeed.Vulnerabilities)
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