use iterative approach with a queue to avoid recursive WithFilerClient calls

weed/s3api/filer_util.go

@@ -112,43 +112,51 @@ func (s3a *S3ApiServer) updateEntry(parentDirectoryPath string, newEntry *filer_
 }
 
 func (s3a *S3ApiServer) updateEntriesTTL(parentDirectoryPath string, ttlSec int32) error {
-	var updateErrors []error
-	err := s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
+	// Use iterative approach with a queue to avoid recursive WithFilerClient calls
+	// which would create a new connection for each subdirectory
+	return s3a.WithFilerClient(false, func(client filer_pb.SeaweedFilerClient) error {
+		var updateErrors []error
+		dirsToProcess := []string{parentDirectoryPath}
 		ctx := context.Background()
-		if listErr := filer_pb.SeaweedList(ctx, client, parentDirectoryPath, "", func(entry *filer_pb.Entry, isLast bool) error {
-			if entry.IsDirectory {
-				if err := s3a.updateEntriesTTL(fmt.Sprintf("%s/%s", strings.TrimRight(parentDirectoryPath, "/"), entry.Name), ttlSec); err != nil {
-					updateErrors = append(updateErrors, fmt.Errorf("dir %s: %w", entry.Name, err))
+
+		for len(dirsToProcess) > 0 {
+			dir := dirsToProcess[0]
+			dirsToProcess = dirsToProcess[1:]
+
+			if listErr := filer_pb.SeaweedList(ctx, client, dir, "", func(entry *filer_pb.Entry, isLast bool) error {
+				if entry.IsDirectory {
+					// Add subdirectory to queue for processing
+					dirsToProcess = append(dirsToProcess, fmt.Sprintf("%s/%s", strings.TrimRight(dir, "/"), entry.Name))
+					return nil
+				}
+				if entry.Attributes == nil {
+					entry.Attributes = &filer_pb.FuseAttributes{}
+				}
+				if entry.Extended == nil {
+					entry.Extended = make(map[string][]byte)
+				}
+				entry.Extended[s3_constants.SeaweedFSExpiresS3] = []byte("true")
+				if entry.Attributes.TtlSec == ttlSec {
+					return nil
+				}
+				entry.Attributes.TtlSec = ttlSec
+				if err := filer_pb.UpdateEntry(ctx, client, &filer_pb.UpdateEntryRequest{
+					Directory: dir,
+					Entry:     entry,
+				}); err != nil {
+					updateErrors = append(updateErrors, fmt.Errorf("file %s/%s: %w", dir, entry.Name, err))
 				}
 				return nil
+			}, "", false, math.MaxInt32); listErr != nil {
+				updateErrors = append(updateErrors, fmt.Errorf("list entries in %s: %w", dir, listErr))
 			}
-			if entry.Attributes == nil {
-				entry.Attributes = &filer_pb.FuseAttributes{}
-			}
-			if entry.Extended == nil {
-				entry.Extended = make(map[string][]byte)
-			}
-			entry.Extended[s3_constants.SeaweedFSExpiresS3] = []byte("true")
-			if entry.Attributes.TtlSec == ttlSec {
-				return nil
-			}
-			entry.Attributes.TtlSec = ttlSec
-			if err := filer_pb.UpdateEntry(ctx, client, &filer_pb.UpdateEntryRequest{
-				Directory: parentDirectoryPath,
-				Entry:     entry,
-			}); err != nil {
-				updateErrors = append(updateErrors, fmt.Errorf("file %s: %w", entry.Name, err))
-			}
-			return nil
-		}, "", false, math.MaxInt32); listErr != nil {
-			return fmt.Errorf("list entries in %s: %w", parentDirectoryPath, listErr)
 		}
+
 		if len(updateErrors) > 0 {
 			return fmt.Errorf("failed to update %d entries: %v", len(updateErrors), updateErrors[0])
 		}
 		return nil
 	})
-	return err
 }
 
 func (s3a *S3ApiServer) getCollectionName(bucket string) string {