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mount: report filer IO error

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related to https://github.com/chrislusf/seaweedfs/issues/1530
This commit is contained in:
Chris Lu 2020-10-13 11:21:13 -07:00
parent 3f7d1d1bf1
commit 9b4f7fed14
4 changed files with 34 additions and 13 deletions
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11
weed/filesys/dir.go
View file

@ -234,7 +234,11 @@ func (dir *Dir) Lookup(ctx context.Context, req *fuse.LookupRequest, resp *fuse.
fullFilePath := util.NewFullPath(dir.FullPath(), req.Name)
dirPath := util.FullPath(dir.FullPath())
meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, util.FullPath(dirPath))
visitErr := meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, dirPath)
if visitErr != nil {
glog.Errorf("dir Lookup %s: %v", dirPath, visitErr)
return nil, fuse.EIO
}
cachedEntry, cacheErr := dir.wfs.metaCache.FindEntry(context.Background(), fullFilePath)
if cacheErr == filer_pb.ErrNotFound {
return nil, fuse.ENOENT
@ -296,7 +300,10 @@ func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
}
dirPath := util.FullPath(dir.FullPath())
meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, dirPath)
if err = meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, dirPath); err != nil {
glog.Errorf("dir ReadDirAll %s: %v", dirPath, err)
return nil, fuse.EIO
}
listedEntries, listErr := dir.wfs.metaCache.ListDirectoryEntries(context.Background(), util.FullPath(dir.FullPath()), "", false, int(math.MaxInt32))
if listErr != nil {
glog.Errorf("list meta cache: %v", listErr)

6
weed/filesys/meta_cache/meta_cache.go
View file

@ -2,6 +2,7 @@ package meta_cache
import (
"context"
"fmt"
"os"
"sync"
@ -116,6 +117,11 @@ func (mc *MetaCache) ListDirectoryEntries(ctx context.Context, dirPath util.Full
mc.RLock()
defer mc.RUnlock()
if !mc.visitedBoundary.HasVisited(dirPath) {
return nil, fmt.Errorf("unsynchronized dir: %v", dirPath)
}
entries, err := mc.localStore.ListDirectoryEntries(ctx, dirPath, startFileName, includeStartFile, limit)
if err != nil {
return nil, err

4
weed/filesys/meta_cache/meta_cache_init.go
View file

@ -10,9 +10,9 @@ import (
"github.com/chrislusf/seaweedfs/weed/util"
)
func EnsureVisited(mc *MetaCache, client filer_pb.FilerClient, dirPath util.FullPath) {
func EnsureVisited(mc *MetaCache, client filer_pb.FilerClient, dirPath util.FullPath) error {
mc.visitedBoundary.EnsureVisited(dirPath, func(path util.FullPath) (childDirectories []string, err error) {
return mc.visitedBoundary.EnsureVisited(dirPath, func(path util.FullPath) (childDirectories []string, err error) {
glog.V(4).Infof("ReadDirAllEntries %s ...", path)

26
weed/util/bounded_tree/bounded_tree.go
View file

@ -34,7 +34,7 @@ type VisitNodeFunc func(path util.FullPath) (childDirectories []string, err erro
// No action if the directory has been visited before or does not exist.
// A leaf node, which has no children, represents a directory not visited.
// A non-leaf node or a non-existing node represents a directory already visited, or does not need to visit.
func (t *BoundedTree) EnsureVisited(p util.FullPath, visitFn VisitNodeFunc) {
func (t *BoundedTree) EnsureVisited(p util.FullPath, visitFn VisitNodeFunc) (visitErr error){
t.Lock()
defer t.Unlock()
@ -46,12 +46,17 @@ func (t *BoundedTree) EnsureVisited(p util.FullPath, visitFn VisitNodeFunc) {
}
components := p.Split()
// fmt.Printf("components %v %d\n", components, len(components))
if canDelete := t.ensureVisited(t.root, t.baseDir, components, 0, visitFn); canDelete {
canDelete, err := t.ensureVisited(t.root, t.baseDir, components, 0, visitFn)
if err != nil {
return err
}
if canDelete {
t.root = nil
}
return nil
}
func (t *BoundedTree) ensureVisited(n *Node, currentPath util.FullPath, components []string, i int, visitFn VisitNodeFunc) (canDeleteNode bool) {
func (t *BoundedTree) ensureVisited(n *Node, currentPath util.FullPath, components []string, i int, visitFn VisitNodeFunc) (canDeleteNode bool, visitErr error) {
// println("ensureVisited", currentPath, i)
@ -73,12 +78,12 @@ func (t *BoundedTree) ensureVisited(n *Node, currentPath util.FullPath, componen
children, err := visitFn(filerPath)
if err != nil {
glog.V(0).Infof("failed to visit %s: %v", currentPath, err)
return
return false, err
}
if len(children) == 0 {
// fmt.Printf(" canDelete %v without children\n", currentPath)
return true
return true, nil
}
n.Children = make(map[string]*Node)
@ -103,19 +108,22 @@ func (t *BoundedTree) ensureVisited(n *Node, currentPath util.FullPath, componen
}
// fmt.Printf(" ensureVisited %v %v\n", currentPath, toVisitNode.Name)
if canDelete := t.ensureVisited(toVisitNode, currentPath.Child(components[i]), components, i+1, visitFn); canDelete {
canDelete, childVisitErr := t.ensureVisited(toVisitNode, currentPath.Child(components[i]), components, i+1, visitFn)
if childVisitErr != nil {
return false, childVisitErr
}
if canDelete {
// fmt.Printf(" delete %v %v\n", currentPath, components[i])
delete(n.Children, components[i])
if len(n.Children) == 0 {
// fmt.Printf(" canDelete %v\n", currentPath)
return true
return true, nil
}
}
return false
return false, nil
}