fixing race condition in disk storage sync and save (#7263)

hypermodeinc · Jan 8, 2021 · d13e744 · d13e744
1 parent 31164dd
commit d13e744
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/raftwal/storage.go b/raftwal/storage.go
@@ -373,6 +373,9 @@ func (w *DiskStorage) NumLogFiles() int {
 
 // Sync calls the Sync method in the underlying badger instance to write all the contents to disk.
 func (w *DiskStorage) Sync() error {
+	w.lock.Lock()
+	defer w.lock.Unlock()
+
 	if err := w.meta.Sync(); err != nil {
 		return errors.Wrapf(err, "while syncing meta")
 	}