add retry hotfix

libriheavy.py

@@ -204,7 +204,14 @@ class Libriheavy(datasets.GeneratorBasedBuilder):
         for chunk in speaker_chunks:
             if finish_stream:
                 break
-            npz = dict(np.load(chunk["audio"], allow_pickle=True))
+            retry = 0
+            while retry < 10:
+                try:
+                    npz = dict(np.load(chunk["audio"], allow_pickle=True))
+                    break
+                except error:
+                    print(error, "retrying in 60s")
+                    sleep(60)
             utterances = npz.keys()
             with gzip.open(chunk["text"], "rt") as f:
                 text = json.load(f)