Improve posixfs logging

changelog/unreleased/improve-posixfs-logging.md

@@ -0,0 +1,5 @@
+Enhancement: Improve posixfs error handling and logging
+
+We improved error handling and logging in the posixfs storage driver.
+
+https://github.com/cs3org/reva/pull/4956

pkg/storage/fs/posix/posix.go

@@ -84,7 +84,7 @@ func New(m map[string]interface{}, stream events.Stream, log *zerolog.Logger) (s
 		return nil, fmt.Errorf("unknown metadata backend %s, only 'messagepack' or 'xattrs' (default) supported", o.MetadataBackend)
 	}
 
-	trashbin, err := trashbin.New(o, lu)
+	trashbin, err := trashbin.New(o, lu, log)
 	if err != nil {
 		return nil, err
 	}

pkg/storage/fs/posix/testhelpers/helpers.go

@@ -25,6 +25,7 @@ import (
 	"path/filepath"
 
 	"github.com/google/uuid"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/mock"
 	"google.golang.org/grpc"
 
@@ -177,12 +178,14 @@ func NewTestEnv(config map[string]interface{}) (*TestEnv, error) {
 		},
 	)
 
+	logger := zerolog.New(os.Stderr).With().Logger()
+
 	bs := &treemocks.Blobstore{}
-	tree, err := tree.New(lu, bs, um, &trashbin.Trashbin{}, o, nil, store.Create(), nil)
+	tree, err := tree.New(lu, bs, um, &trashbin.Trashbin{}, o, nil, store.Create(), &logger)
 	if err != nil {
 		return nil, err
 	}
-	tb, err := trashbin.New(o, lu)
+	tb, err := trashbin.New(o, lu, &logger)
 	if err != nil {
 		return nil, err
 	}

pkg/storage/fs/posix/trashbin/trashbin.go

@@ -26,6 +26,9 @@ import (
 	"strings"
 	"time"
 
+	"github.com/google/uuid"
+	"github.com/rs/zerolog"
+
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	typesv1beta1 "github.com/cs3org/go-cs3apis/cs3/types/v1beta1"
 	"github.com/cs3org/reva/v2/pkg/storage"
@@ -34,13 +37,13 @@ import (
 	"github.com/cs3org/reva/v2/pkg/storage/utils/decomposedfs/metadata/prefixes"
 	"github.com/cs3org/reva/v2/pkg/storage/utils/decomposedfs/node"
 	"github.com/cs3org/reva/v2/pkg/utils"
-	"github.com/google/uuid"
 )
 
 type Trashbin struct {
-	fs storage.FS
-	o  *options.Options
-	lu *lookup.Lookup
+	fs  storage.FS
+	o   *options.Options
+	lu  *lookup.Lookup
+	log *zerolog.Logger
 }
 
 const (
@@ -49,10 +52,11 @@ const (
 )
 
 // New returns a new Trashbin
-func New(o *options.Options, lu *lookup.Lookup) (*Trashbin, error) {
+func New(o *options.Options, lu *lookup.Lookup, log *zerolog.Logger) (*Trashbin, error) {
 	return &Trashbin{
-		o:  o,
-		lu: lu,
+		o:   o,
+		lu:  lu,
+		log: log,
 	}, nil
 }
 
@@ -261,7 +265,9 @@ func (tb *Trashbin) RestoreRecycleItem(ctx context.Context, ref *provider.Refere
 	if err != nil {
 		return err
 	}
-	_ = tb.lu.CacheID(ctx, n.SpaceID, string(id), restorePath)
+	if err := tb.lu.CacheID(ctx, n.SpaceID, string(id), restorePath); err != nil {
+		tb.log.Error().Err(err).Str("spaceID", n.SpaceID).Str("id", string(id)).Str("path", restorePath).Msg("trashbin: error caching id")
+	}
 
 	// cleanup trash info
 	if relativePath == "." || relativePath == "/" {

pkg/storage/fs/posix/tree/assimilation.go

@@ -165,6 +165,7 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 	// cases:
 	switch action {
 	case ActionCreate:
+		t.log.Debug().Str("path", path).Bool("isDir", isDir).Msg("scanning path (ActionCreate)")
 		if !isDir {
 			// 1. New file (could be emitted as part of a new directory)
 			//	 -> assimilate file
@@ -197,6 +198,7 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 		}
 
 	case ActionUpdate:
+		t.log.Debug().Str("path", path).Bool("isDir", isDir).Msg("scanning path (ActionUpdate)")
 		// 3. Updated file
 		//   -> update file unless parent directory is being rescanned
 		if !t.scanDebouncer.InProgress(filepath.Dir(path)) {
@@ -207,6 +209,7 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 		}
 
 	case ActionMove:
+		t.log.Debug().Str("path", path).Bool("isDir", isDir).Msg("scanning path (ActionMove)")
 		// 4. Moved file
 		//   -> update file
 		// 5. Moved directory
@@ -218,6 +221,7 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 		})
 
 	case ActionMoveFrom:
+		t.log.Debug().Str("path", path).Bool("isDir", isDir).Msg("scanning path (ActionMoveFrom)")
 		// 6. file/directory moved out of the watched directory
 		//   -> update directory
 		if err := t.setDirty(filepath.Dir(path), true); err != nil {
@@ -227,9 +231,16 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 		go func() { _ = t.WarmupIDCache(filepath.Dir(path), false, true) }()
 
 	case ActionDelete:
-		_ = t.HandleFileDelete(path)
+		t.log.Debug().Str("path", path).Bool("isDir", isDir).Msg("handling deleted item")
+
 		// 7. Deleted file or directory
 		//   -> update parent and all children
+
+		err := t.HandleFileDelete(path)
+		if err != nil {
+			return err
+		}
+
 		t.scanDebouncer.Debounce(scanItem{
 			Path:        filepath.Dir(path),
 			ForceRescan: true,
@@ -242,8 +253,12 @@ func (t *Tree) Scan(path string, action EventAction, isDir bool) error {
 
 func (t *Tree) HandleFileDelete(path string) error {
 	// purge metadata
-	_ = t.lookup.(*lookup.Lookup).IDCache.DeleteByPath(context.Background(), path)
-	_ = t.lookup.MetadataBackend().Purge(context.Background(), path)
+	if err := t.lookup.(*lookup.Lookup).IDCache.DeleteByPath(context.Background(), path); err != nil {
+		t.log.Error().Err(err).Str("path", path).Msg("could not delete id cache entry by path")
+	}
+	if err := t.lookup.MetadataBackend().Purge(context.Background(), path); err != nil {
+		t.log.Error().Err(err).Str("path", path).Msg("could not purge metadata")
+	}
 
 	// send event
 	owner, spaceID, nodeID, parentID, err := t.getOwnerAndIDs(filepath.Dir(path))
@@ -369,31 +384,48 @@ func (t *Tree) assimilate(item scanItem) error {
 		if ok && len(previousParentID) > 0 && previousPath != item.Path {
 			_, err := os.Stat(previousPath)
 			if err == nil {
-				// this id clashes with an existing id -> clear metadata and re-assimilate
+				// this id clashes with an existing item -> clear metadata and re-assimilate
+				t.log.Debug().Str("path", item.Path).Msg("ID clash detected, purging metadata and re-assimilating")
 
-				_ = t.lookup.MetadataBackend().Purge(context.Background(), item.Path)
+				if err := t.lookup.MetadataBackend().Purge(context.Background(), item.Path); err != nil {
+					t.log.Error().Err(err).Str("path", item.Path).Msg("could not purge metadata")
+				}
 				go func() {
-					_ = t.assimilate(scanItem{Path: item.Path, ForceRescan: true})
+					if err := t.assimilate(scanItem{Path: item.Path, ForceRescan: true}); err != nil {
+						t.log.Error().Err(err).Str("path", item.Path).Msg("could not re-assimilate")
+					}
 				}()
 			} else {
 				// this is a move
-				_ = t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, string(id), item.Path)
+				t.log.Debug().Str("path", item.Path).Msg("move detected")
+
+				if err := t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, string(id), item.Path); err != nil {
+					t.log.Error().Err(err).Str("spaceID", spaceID).Str("id", string(id)).Str("path", item.Path).Msg("could not cache id")
+				}
 				_, err := t.updateFile(item.Path, string(id), spaceID)
 				if err != nil {
 					return err
 				}
 
 				// purge original metadata. Only delete the path entry using DeletePath(reverse lookup), not the whole entry pair.
-				_ = t.lookup.(*lookup.Lookup).IDCache.DeletePath(context.Background(), previousPath)
-				_ = t.lookup.MetadataBackend().Purge(context.Background(), previousPath)
+				if err := t.lookup.(*lookup.Lookup).IDCache.DeletePath(context.Background(), previousPath); err != nil {
+					t.log.Error().Err(err).Str("path", previousPath).Msg("could not delete id cache entry by path")
+				}
+				if err := t.lookup.MetadataBackend().Purge(context.Background(), previousPath); err != nil {
+					t.log.Error().Err(err).Str("path", previousPath).Msg("could not purge metadata")
+				}
 
 				fi, err := os.Stat(item.Path)
 				if err != nil {
 					return err
 				}
 				if fi.IsDir() {
 					// if it was moved and it is a directory we need to propagate the move
-					go func() { _ = t.WarmupIDCache(item.Path, false, true) }()
+					go func() {
+						if err := t.WarmupIDCache(item.Path, false, true); err != nil {
+							t.log.Error().Err(err).Str("path", item.Path).Msg("could not warmup id cache")
+						}
+					}()
 				}
 
 				parentID, err := t.lookup.MetadataBackend().Get(context.Background(), item.Path, prefixes.ParentidAttr)
@@ -426,14 +458,18 @@ func (t *Tree) assimilate(item scanItem) error {
 			}
 		} else {
 			// This item had already been assimilated in the past. Update the path
-			_ = t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, string(id), item.Path)
+			t.log.Debug().Str("path", item.Path).Msg("updating cached path")
+			if err := t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, string(id), item.Path); err != nil {
+				t.log.Error().Err(err).Str("spaceID", spaceID).Str("id", string(id)).Str("path", item.Path).Msg("could not cache id")
+			}
 
 			_, err := t.updateFile(item.Path, string(id), spaceID)
 			if err != nil {
 				return err
 			}
 		}
 	} else {
+		t.log.Debug().Str("path", item.Path).Msg("new item detected")
 		// assimilate new file
 		newId := uuid.New().String()
 		fi, err := t.updateFile(item.Path, newId, spaceID)
@@ -550,12 +586,15 @@ assimilate:
 		return nil, errors.Wrap(err, "failed to propagate")
 	}
 
+	t.log.Debug().Str("path", path).Interface("attributes", attributes).Msg("setting attributes")
 	err = t.lookup.MetadataBackend().SetMultiple(context.Background(), path, attributes, false)
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to set attributes")
 	}
 
-	_ = t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, id, path)
+	if err := t.lookup.(*lookup.Lookup).CacheID(context.Background(), spaceID, id, path); err != nil {
+		t.log.Error().Err(err).Str("spaceID", spaceID).Str("id", id).Str("path", path).Msg("could not cache id")
+	}
 
 	return fi, nil
 }
@@ -654,20 +693,28 @@ func (t *Tree) WarmupIDCache(root string, assimilate, onlyDirty bool) error {
 						_ = t.assimilate(scanItem{Path: path, ForceRescan: true})
 					}
 				}
-				_ = t.lookup.(*lookup.Lookup).CacheID(context.Background(), string(spaceID), string(id), path)
+				if err := t.lookup.(*lookup.Lookup).CacheID(context.Background(), string(spaceID), string(id), path); err != nil {
+					t.log.Error().Err(err).Str("spaceID", string(spaceID)).Str("id", string(id)).Str("path", path).Msg("could not cache id")
+				}
 			}
 		} else if assimilate {
-			_ = t.assimilate(scanItem{Path: path, ForceRescan: true})
+			if err := t.assimilate(scanItem{Path: path, ForceRescan: true}); err != nil {
+				t.log.Error().Err(err).Str("path", path).Msg("could not assimilate item")
+			}
 		}
 		return t.setDirty(path, false)
 	})
 
 	for dir, size := range sizes {
 		if dir == root {
 			// Propagate the size diff further up the tree
-			_ = t.propagateSizeDiff(dir, size)
+			if err := t.propagateSizeDiff(dir, size); err != nil {
+				t.log.Error().Err(err).Str("path", dir).Msg("could not propagate size diff")
+			}
+		}
+		if err := t.lookup.MetadataBackend().Set(context.Background(), dir, prefixes.TreesizeAttr, []byte(fmt.Sprintf("%d", size))); err != nil {
+			t.log.Error().Err(err).Str("path", dir).Int64("size", size).Msg("could not set tree size")
 		}
-		_ = t.lookup.MetadataBackend().Set(context.Background(), dir, prefixes.TreesizeAttr, []byte(fmt.Sprintf("%d", size)))
 	}
 
 	if err != nil {

pkg/storage/fs/posix/tree/gpfsfilauditloggingwatcher.go

@@ -25,10 +25,13 @@ import (
 	"os"
 	"strconv"
 	"time"
+
+	"github.com/rs/zerolog"
 )
 
 type GpfsFileAuditLoggingWatcher struct {
 	tree *Tree
+	log  *zerolog.Logger
 }
 
 type lwe struct {
@@ -37,9 +40,10 @@ type lwe struct {
 	BytesWritten string
 }
 
-func NewGpfsFileAuditLoggingWatcher(tree *Tree, auditLogFile string) (*GpfsFileAuditLoggingWatcher, error) {
+func NewGpfsFileAuditLoggingWatcher(tree *Tree, auditLogFile string, log *zerolog.Logger) (*GpfsFileAuditLoggingWatcher, error) {
 	w := &GpfsFileAuditLoggingWatcher{
 		tree: tree,
+		log:  log,
 	}
 
 	_, err := os.Stat(auditLogFile)
@@ -75,25 +79,33 @@ start:
 		case nil:
 			err := json.Unmarshal([]byte(line), ev)
 			if err != nil {
+				w.log.Error().Err(err).Str("line", line).Msg("error unmarshalling line")
 				continue
 			}
 			if isLockFile(ev.Path) || isTrash(ev.Path) || w.tree.isUpload(ev.Path) {
 				continue
 			}
-			switch ev.Event {
-			case "CREATE":
-				go func() { _ = w.tree.Scan(ev.Path, ActionCreate, false) }()
-			case "CLOSE":
-				bytesWritten, err := strconv.Atoi(ev.BytesWritten)
-				if err == nil && bytesWritten > 0 {
-					go func() { _ = w.tree.Scan(ev.Path, ActionUpdate, false) }()
+			go func() {
+				switch ev.Event {
+				case "CREATE":
+					err = w.tree.Scan(ev.Path, ActionCreate, false)
+				case "CLOSE":
+					var bytesWritten int
+					bytesWritten, err = strconv.Atoi(ev.BytesWritten)
+					if err == nil && bytesWritten > 0 {
+						err = w.tree.Scan(ev.Path, ActionUpdate, false)
+					}
+				case "RENAME":
+					err = w.tree.Scan(ev.Path, ActionMove, false)
+					if warmupErr := w.tree.WarmupIDCache(ev.Path, false, false); warmupErr != nil {
+						w.log.Error().Err(warmupErr).Str("path", ev.Path).Msg("error warming up id cache")
+					}
 				}
-			case "RENAME":
-				go func() {
-					_ = w.tree.Scan(ev.Path, ActionMove, false)
-					_ = w.tree.WarmupIDCache(ev.Path, false, false)
-				}()
-			}
+				if err != nil {
+					w.log.Error().Err(err).Str("line", line).Msg("error unmarshalling line")
+				}
+			}()
+
 		case io.EOF:
 			time.Sleep(1 * time.Second)
 		default: