All data deleted when restore external snapshot on psmdb

xiaobao_wen · December 31, 2025, 6:20am

github.com/percona/percona-backup-mongodb

pbm/restore/physical.go

7e76039e5


      
          			return !ok
          		}
          	} else {
          		rm = func(f string) bool {
          			_, ok := rmFromDatadir[f]
          			return ok
          		}
          	}
          
          	dbpath := path.Clean(r.dbpath) + "/"
          	return filepath.Walk(dbpath, func(p string, info os.FileInfo, err error) error {
          		if err != nil {
          			return errors.Wrap(err, "walking the path")
          		}
          		if info.IsDir() || !rm(strings.TrimPrefix(p, dbpath)) {
          			return nil
          		}
          
          		r.log.Debug("rm %s", p)
          		err = os.Remove(p)
          		if err != nil {

After restore status become StatusCopyDone, pbm agent cleanupDatadir with needFiles. filepath.Walk cannot enter symlink directory.

/data/db/journal may be wrongly deleted

[mongodb@dev-rs-mdb-rs0-2 /]$ ls /data/db/ -l | grep journal

lrwxrwxrwx 1 mongodb 1001      8 Dec  5 07:05 journal -> /journal

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All data deleted when restore external snapshot on psmdb

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