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FUSE mount: lazy loading meta cache

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This commit is contained in:
Chris Lu
2020-06-19 09:45:27 -07:00
parent c0283eee1a
commit f7a45d448f
4 changed files with 54 additions and 8 deletions
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9
weed/filesys/dir.go
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@@ -8,6 +8,7 @@ import (
"time"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/filesys/meta_cache"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/util"
@@ -204,8 +205,10 @@ func (dir *Dir) Lookup(ctx context.Context, req *fuse.LookupRequest, resp *fuse.
glog.V(4).Infof("dir Lookup %s: %s by %s", dir.FullPath(), req.Name, req.Header.String())
fullFilePath := util.NewFullPath(dir.FullPath(), req.Name)
dirPath := dir.FullPath()
fullFilePath := util.NewFullPath(dirPath, req.Name)
meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, util.FullPath(dirPath))
cachedEntry, cacheErr := dir.wfs.metaCache.FindEntry(context.Background(), fullFilePath)
if cacheErr == filer_pb.ErrNotFound {
return nil, fuse.ENOENT
@@ -263,7 +266,9 @@ func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
return nil
}
listedEntries, listErr := dir.wfs.metaCache.ListDirectoryEntries(context.Background(), util.FullPath(dir.FullPath()), "", false, int(dir.wfs.option.DirListCacheLimit))
dirPath := util.FullPath(dir.FullPath())
meta_cache.EnsureVisited(dir.wfs.metaCache, dir.wfs, dirPath)
listedEntries, listErr := dir.wfs.metaCache.ListDirectoryEntries(context.Background(), dirPath, "", false, int(dir.wfs.option.DirListCacheLimit))
if listErr != nil {
glog.Errorf("list meta cache: %v", listErr)
return nil, fuse.EIO