+ // Parse manifests from collQ and pass the block hashes to
+ // BlockStateMap to track desired replication.
+ for i := 0; i < runtime.NumCPU(); i++ {
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ for coll := range collQ {
+ err := bal.addCollection(coll)
+ if err != nil || len(errs) > 0 {
+ select {
+ case errs <- err:
+ default:
+ }
+ cancel()
+ continue
+ }
+ atomic.AddInt64(&bal.collScanned, 1)
+ }
+ }()
+ }
+