[Storehouse] 012 - Update util checkpoint list tries to support payloadless checkpoint

cmd/util/cmd/checkpoint-collect-stats/cmd.go

@@ -3,6 +3,7 @@ package checkpoint_collect_stats
 import (
 	"cmp"
 	"encoding/hex"
+	"fmt"
 	"math"
 	"slices"
 	"strings"
@@ -315,6 +316,15 @@ func getPayloadStatsFromCheckpoint(payloadCallBack func(payload *ledger.Payload)
 	memAllocBefore := debug.GetHeapAllocsBytes()
 	log.Info().Msgf("loading checkpoint(s) from %v", flagCheckpointDir)
 
+	// checkpoint-collect-stats analyzes payload contents (register types, sizes,
+	// account info). V7 (payloadless) checkpoints store only leaf hashes and contain
+	// no payloads, so they cannot be processed here. The WAL replay below loads only
+	// V6 checkpoints and silently ignores V7 files, which would otherwise produce
+	// misleading (stale or empty) stats. Fail fast with a clear error instead.
+	if err := requireV6Checkpoint(flagCheckpointDir); err != nil {
+		log.Fatal().Err(err).Msg("cannot collect stats from checkpoint")
+	}
+
 	diskWal, err := wal.NewDiskWAL(zerolog.Nop(), nil, &metrics.NoopCollector{}, flagCheckpointDir, complete.DefaultCacheSize, pathfinder.PathByteSize, wal.SegmentSize)
 	if err != nil {
 		log.Fatal().Err(err).Msg("cannot create WAL")
@@ -369,6 +379,33 @@ func getPayloadStatsFromCheckpoint(payloadCallBack func(payload *ledger.Payload)
 	return ledgerStats
 }
 
+// requireV6Checkpoint returns an error if the latest checkpoint in dir is a V7
+// (payloadless) checkpoint. checkpoint-collect-stats requires full payloads,
+// which V7 checkpoints do not contain.
+//
+// Only numbered checkpoints are considered (the WAL bootstrap loads the latest
+// numbered V6 checkpoint). If the latest numbered checkpoint is V7, this command
+// would otherwise silently fall back to an older V6 checkpoint or an empty state,
+// reporting misleading stats.
+//
+// Expected error returns during normal operation:
+//   - an error when the latest checkpoint in dir is a V7 (payloadless) checkpoint
+func requireV6Checkpoint(dir string) error {
+	_, latest, err := wal.ListCheckpointsWithInfo(dir)
+	if err != nil {
+		return fmt.Errorf("cannot list checkpoints in %s: %w", dir, err)
+	}
+
+	if latest != nil && latest.Version == wal.VersionV7 {
+		return fmt.Errorf(
+			"checkpoint %d in %s is a V7 (payloadless) checkpoint, which contains no payloads; "+
+				"checkpoint-collect-stats requires a V6 checkpoint",
+			latest.Number, dir)
+	}
+
+	return nil
+}
+
 func getRegisterStats(valueSizesByType sizesByType) []RegisterStatsByTypes {
 	domainStats := make([]RegisterStatsByTypes, 0, len(common.AllStorageDomains))
 	var allDomainSizes []float64

cmd/util/cmd/checkpoint-collect-stats/cmd_test.go

@@ -0,0 +1,56 @@
+package checkpoint_collect_stats
+
+import (
+	"testing"
+
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/require"
+
+	"github.com/onflow/flow-go/ledger"
+	"github.com/onflow/flow-go/ledger/common/testutils"
+	"github.com/onflow/flow-go/ledger/complete/mtrie/trie"
+	"github.com/onflow/flow-go/ledger/complete/payloadless"
+	"github.com/onflow/flow-go/ledger/complete/wal"
+)
+
+// TestRequireV6Checkpoint_EmptyDir verifies that a directory without any numbered
+// checkpoint is accepted (the caller proceeds with WAL replay / root checkpoint).
+func TestRequireV6Checkpoint_EmptyDir(t *testing.T) {
+	require.NoError(t, requireV6Checkpoint(t.TempDir()))
+}
+
+// TestRequireV6Checkpoint_V6 verifies that a directory whose latest checkpoint is
+// V6 is accepted.
+func TestRequireV6Checkpoint_V6(t *testing.T) {
+	dir := t.TempDir()
+
+	p := testutils.PathByUint8(0)
+	v := testutils.LightPayload8('A', 'a')
+	tr, _, err := trie.NewTrieWithUpdatedRegisters(
+		trie.NewEmptyMTrie(), []ledger.Path{p}, []ledger.Payload{*v}, true)
+	require.NoError(t, err)
+
+	require.NoError(t, wal.StoreCheckpointV6Concurrently(
+		[]*trie.MTrie{tr}, dir, wal.NumberToFilename(1), zerolog.Nop()))
+
+	require.NoError(t, requireV6Checkpoint(dir))
+}
+
+// TestRequireV6Checkpoint_V7 verifies that a directory whose latest checkpoint is
+// V7 (payloadless) is rejected, since this command requires full payloads.
+func TestRequireV6Checkpoint_V7(t *testing.T) {
+	dir := t.TempDir()
+
+	p := testutils.PathByUint8(0)
+	v := testutils.LightPayload8('A', 'a')
+	tr, _, err := payloadless.NewTrieWithUpdatedRegisters(
+		payloadless.NewEmptyMTrie(), []ledger.Path{p}, [][]byte{v.Value()}, true)
+	require.NoError(t, err)
+
+	require.NoError(t, wal.StoreCheckpointV7Concurrently(
+		[]*payloadless.MTrie{tr}, dir, wal.NumberToFilenameV7(1), zerolog.Nop()))
+
+	err = requireV6Checkpoint(dir)
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "V7")
+}

cmd/util/cmd/checkpoint-list-tries/cmd.go

@@ -2,10 +2,14 @@ package checkpoint_list_tries
 
 import (
 	"fmt"
+	"path/filepath"
+	"strings"
 
+	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 
+	"github.com/onflow/flow-go/ledger"
 	"github.com/onflow/flow-go/ledger/complete/wal"
 )
 
@@ -28,14 +32,32 @@ func init() {
 
 func run(*cobra.Command, []string) {
 
-	log.Info().Msgf("loading checkpoint %v", flagCheckpoint)
-	tries, err := wal.LoadCheckpoint(flagCheckpoint, log.Logger)
+	log.Info().Msgf("reading trie root hashes from checkpoint %v", flagCheckpoint)
+
+	hashes, err := readTrieRootHashes(log.Logger, flagCheckpoint)
 	if err != nil {
-		log.Fatal().Err(err).Msg("error while loading checkpoint")
+		log.Fatal().Err(err).Msg("error while reading trie root hashes from checkpoint")
+	}
+	log.Info().Msgf("checkpoint read, total tries: %v", len(hashes))
+
+	for _, h := range hashes {
+		fmt.Printf("trie root hash: %s\n", h)
 	}
-	log.Info().Msgf("checkpoint loaded, total tries: %v", len(tries))
+}
 
-	for _, trie := range tries {
-		fmt.Printf("trie root hash: %s\n", trie.RootHash())
+// readTrieRootHashes reads only the trie root hashes from the checkpoint file at
+// the given path, without materializing the full trie forest. Only the top-trie
+// part file (containing the trie root records) is read.
+//
+// Both V6 and V7 (payloadless) checkpoints are supported; the version is
+// determined by the V7 filename suffix ([wal.V7FileSuffix]). The root hashes are
+// returned in the order they are stored in the checkpoint.
+//
+// No error returns are expected during normal operation.
+func readTrieRootHashes(logger zerolog.Logger, checkpointFilePath string) ([]ledger.RootHash, error) {
+	dir, fileName := filepath.Split(checkpointFilePath)
+	if strings.HasSuffix(fileName, wal.V7FileSuffix) {
+		return wal.ReadTriesRootHashV7(logger, dir, fileName)
 	}
+	return wal.ReadTriesRootHash(logger, dir, fileName)
 }

cmd/util/cmd/checkpoint-list-tries/cmd_test.go

@@ -0,0 +1,94 @@
+package checkpoint_list_tries
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/require"
+
+	"github.com/onflow/flow-go/ledger"
+	"github.com/onflow/flow-go/ledger/common/testutils"
+	"github.com/onflow/flow-go/ledger/complete/mtrie/trie"
+	"github.com/onflow/flow-go/ledger/complete/payloadless"
+	"github.com/onflow/flow-go/ledger/complete/wal"
+)
+
+// TestReadTrieRootHashesV6 verifies that the trie root hashes are read from a V6
+// checkpoint in the order they were stored, without loading the full forest.
+func TestReadTrieRootHashesV6(t *testing.T) {
+	dir := t.TempDir()
+	const fileName = "checkpoint"
+
+	tries := createV6Tries(t)
+
+	err := wal.StoreCheckpointV6Concurrently(tries, dir, fileName, zerolog.Nop())
+	require.NoError(t, err)
+
+	hashes, err := readTrieRootHashes(zerolog.Nop(), filepath.Join(dir, fileName))
+	require.NoError(t, err)
+
+	expected := make([]ledger.RootHash, len(tries))
+	for i, tr := range tries {
+		expected[i] = tr.RootHash()
+	}
+	require.Equal(t, expected, hashes)
+}
+
+// TestReadTrieRootHashesV7 verifies that the trie root hashes are read from a V7
+// (payloadless) checkpoint in the order they were stored, by dispatching on the
+// V7 filename suffix.
+func TestReadTrieRootHashesV7(t *testing.T) {
+	dir := t.TempDir()
+	fileName := "checkpoint" + wal.V7FileSuffix
+
+	tries := createV7Tries(t)
+
+	err := wal.StoreCheckpointV7Concurrently(tries, dir, fileName, zerolog.Nop())
+	require.NoError(t, err)
+
+	hashes, err := readTrieRootHashes(zerolog.Nop(), filepath.Join(dir, fileName))
+	require.NoError(t, err)
+
+	expected := make([]ledger.RootHash, len(tries))
+	for i, tr := range tries {
+		expected[i] = tr.RootHash()
+	}
+	require.Equal(t, expected, hashes)
+}
+
+// createV6Tries builds a chain of two distinct full-payload tries for use as V6
+// checkpoint content.
+func createV6Tries(t *testing.T) []*trie.MTrie {
+	p1 := testutils.PathByUint8(0)
+	v1 := testutils.LightPayload8('A', 'a')
+	trie1, _, err := trie.NewTrieWithUpdatedRegisters(
+		trie.NewEmptyMTrie(), []ledger.Path{p1}, []ledger.Payload{*v1}, true)
+	require.NoError(t, err)
+
+	p2 := testutils.PathByUint8(1)
+	v2 := testutils.LightPayload8('B', 'b')
+	trie2, _, err := trie.NewTrieWithUpdatedRegisters(
+		trie1, []ledger.Path{p2}, []ledger.Payload{*v2}, true)
+	require.NoError(t, err)
+
+	return []*trie.MTrie{trie1, trie2}
+}
+
+// createV7Tries builds a chain of two distinct payloadless tries for use as V7
+// checkpoint content.
+func createV7Tries(t *testing.T) []*payloadless.MTrie {
+	p1 := testutils.PathByUint8(0)
+	v1 := testutils.LightPayload8('A', 'a')
+	trie1, _, err := payloadless.NewTrieWithUpdatedRegisters(
+		payloadless.NewEmptyMTrie(), []ledger.Path{p1}, [][]byte{v1.Value()}, true)
+	require.NoError(t, err)
+
+	p2 := testutils.PathByUint8(1)
+	v2 := testutils.LightPayload8('B', 'b')
+	trie2, _, err := payloadless.NewTrieWithUpdatedRegisters(
+		trie1, []ledger.Path{p2}, [][]byte{v2.Value()}, true)
+	require.NoError(t, err)
+
+	return []*payloadless.MTrie{trie1, trie2}
+}