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Cap delay to sleep to avoid overflow

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This commit is contained in:
Lorenzo Bolla
2021-06-25 11:20:59 +02:00
parent de2be9b8ae
commit fd83c1a5bf
1 changed files with 6 additions and 3 deletions
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http/download.go
+6 -3
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@@ -179,9 +179,9 @@ func (downloader *downloaderImpl) DownloadWithChecksum(ctx context.Context, url
var temppath string var temppath string
maxTries := downloader.maxTries maxTries := downloader.maxTries
const delayBase = 1 const delayMax = time.Duration(5 * time.Minute)
delay := time.Duration(1 * time.Second)
const delayMultiplier = 2 const delayMultiplier = 2
delay := time.Duration(delayBase * time.Second)
for maxTries > 0 { for maxTries > 0 {
temppath, err = downloader.download(req, url, destination, expected, ignoreMismatch) temppath, err = downloader.download(req, url, destination, expected, ignoreMismatch)
@@ -192,8 +192,11 @@ func (downloader *downloaderImpl) DownloadWithChecksum(ctx context.Context, url
} }
maxTries-- maxTries--
time.Sleep(delay) time.Sleep(delay)
// Sleep exponentially at the next retry // Sleep exponentially at the next retry, but no longer than delayMax
delay *= delayMultiplier delay *= delayMultiplier
if delay > delayMax {
delay = delayMax
}
} else { } else {
if downloader.progress != nil { if downloader.progress != nil {
downloader.progress.Printf("Error downloading %s: %s cannot retry...\n", url, err) downloader.progress.Printf("Error downloading %s: %s cannot retry...\n", url, err)