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core: report progress on log chain exports (#17066)

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* core/blockchain: export progress

* core: polish up chain export progress report a bit
This commit is contained in:
Raghav Sood
2018-07-26 23:26:24 +12:00
committed by Péter Szilágyi
parent 021d6fbbbb
commit 11a402f747
2 changed files with 9 additions and 4 deletions
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10
core/blockchain.go
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@ -450,15 +450,19 @@ func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error {
}
log.Info("Exporting batch of blocks", "count", last-first+1)
start, reported := time.Now(), time.Now()
for nr := first; nr <= last; nr++ {
block := bc.GetBlockByNumber(nr)
if block == nil {
return fmt.Errorf("export failed on #%d: not found", nr)
}
if err := block.EncodeRLP(w); err != nil {
return err
}
if time.Since(reported) >= statsReportLimit {
log.Info("Exporting blocks", "exported", block.NumberU64()-first, "elapsed", common.PrettyDuration(time.Since(start)))
reported = time.Now()
}
}
return nil
@ -1203,8 +1207,8 @@ type insertStats struct {
startTime mclock.AbsTime
}
// statsReportLimit is the time limit during import after which we always print
// out progress. This avoids the user wondering what's going on.
// statsReportLimit is the time limit during import and export after which we
// always print out progress. This avoids the user wondering what's going on.
const statsReportLimit = 8 * time.Second
// report prints statistics if some number of blocks have been processed