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feat: Add retry mechanism for datadurability check #380

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feat: Add retry mechanism for datadurability check #380

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cf58df0
feat: add retry mechanism
acha-bill Jan 15, 2024
ad5cb98
fix: review comment
acha-bill Feb 26, 2024
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25 changes: 18 additions & 7 deletions pkg/check/datadurability/datadurability.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,15 +18,19 @@ import (
)

type Options struct {
Ref string
Concurrency int
MaxAttempts int
Ref string
Concurrency int
MaxAttempts int
RetryAttempts int
RetryWait time.Duration
}

func NewDefaultOptions() Options {
return Options{
Concurrency: 10,
MaxAttempts: 10,
Concurrency: 10,
MaxAttempts: 10,
RetryAttempts: 3,
RetryWait: 5 * time.Second,
}
}

Expand Down Expand Up @@ -99,9 +103,16 @@ func (c *Check) Run(ctx context.Context, cluster orchestration.Cluster, o interf
c.metrics.ChunkDownloadAttempts.Inc()
cache := false
chunkStart := time.Now()
d, err = node.Client().DownloadChunk(ctx, ref, "", &api.DownloadOptions{Cache: &cache})
for retry := 0; retry < opts.RetryAttempts; retry++ {
d, err = node.Client().DownloadChunk(ctx, ref, "", &api.DownloadOptions{Cache: &cache})
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if err == nil {
break
}
c.logger.Debugf("download failed. %s (%d of %d). retry=%d chunk=%s node=%s err=%v", percentage(i, len(chunkRefs)), i, len(chunkRefs), retry, ref, node.Name(), err)
time.Sleep(opts.RetryWait)
}
if err != nil {
c.logger.Errorf("download failed. %s (%d of %d). chunk=%s node=%s err=%v", percentage(i, len(chunkRefs)), i, len(chunkRefs), ref, node.Name(), err)
c.logger.Errorf("download failed after %d retries. %s (%d of %d). chunk=%s node=%s err=%v", opts.RetryAttempts, percentage(i, len(chunkRefs)), i, len(chunkRefs), ref, node.Name(), err)
c.metrics.ChunkDownloadErrors.Inc()
once.Do(func() {
c.metrics.FileDownloadAttempts.Inc()
Expand Down