core/state/pruner: track number of skipped items during state pruning (…

…ethereum#28368)

core/state/pruner/pruner.go

@@ -125,12 +125,12 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
  // dangling node is the state root is super low. So the dangling nodes in
  // theory will never ever be visited again.
  var (
- count  int
- size common.StorageSize
- pstart = time.Now()
- logged = time.Now()
- batch = maindb.NewBatch()
- iter = maindb.NewIterator(nil, nil)
+ skipped, count int
+ size  common.StorageSize
+ pstart  = time.Now()
+ logged  = time.Now()
+ batch  = maindb.NewBatch()
+ iter  = maindb.NewIterator(nil, nil)
  )
  for iter.Next() {
  key := iter.Key()
@@ -149,6 +149,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
  log.Debug("Forcibly delete the middle state roots", "hash", common.BytesToHash(checkKey))
  } else {
  if stateBloom.Contain(checkKey) {
+ skipped += 1
  continue
  }
  }
@@ -165,7 +166,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
  eta = time.Duration(left/speed) * time.Millisecond
  }
  if time.Since(logged) > 8*time.Second {
- log.Info("Pruning state data", "nodes", count, "size", size,
+ log.Info("Pruning state data", "nodes", count, "skipped", skipped, "size", size,
  "elapsed", common.PrettyDuration(time.Since(pstart)), "eta", common.PrettyDuration(eta))
  logged = time.Now()
  }