catch broken zips

RedPajama-Data-V2.py

@@ -318,15 +318,22 @@ class RedPajamaV2(datasets.GeneratorBasedBuilder):
             yield from self._handle_head_middle(base_tag, doc_file, qs_file, dupe_file)
 
     def _handle_tail(self, base_tag, doc_file, qs_file, dupe_file):
-        with gzip.open(doc_file, "rt", encoding="utf-8") as df:
-            for row, doc in enumerate(df):
-                doc_id = f"{base_tag}.json.gz/{row}"
-                try:
-                    yield self.handle_record("tail", doc_id, doc, None, None)
-                except Exception as e:
-                    logger.warning(f'failed handling row {row} in {doc_file}')
-                    traceback.print_exc()
-                    continue
+        try:
+            with gzip.open(doc_file, "rt", encoding="utf-8") as df:
+                for row, doc in enumerate(df):
+                    doc_id = f"{base_tag}.json.gz/{row}"
+                    try:
+                        yield self.handle_record("tail", doc_id, doc, None, None)
+                    except Exception as e:
+                        logger.warning(f'failed handling row {row} in {doc_file}')
+                        traceback.print_exc()
+                        continue
+
+        except gzip.BadGzipFile as e:
+            # skip broken gzip files
+            print(f'BadGzipFile: {doc_file, qs_file}')
+            traceback.print_exc()
+            return
 
     def _handle_head_middle(
             self, base_tag, doc_file, qs_file, dupe_file
@@ -345,19 +352,26 @@ class RedPajamaV2(datasets.GeneratorBasedBuilder):
             logger.warning(f'no duplicate ids found for {base_tag}')
             duplicates = set()
 
-        with gzip.open(doc_file, "rt", encoding="utf-8") as df:
-            with gzip.open(qs_file, "rt", encoding="utf-8") as qf:
-                for row, (doc, qs) in enumerate(zip(df, qf)):
-                    doc_id = f"{base_tag}.json.gz/{row}"
-
-                    try:
-                        yield self.handle_record(
-                            "head_middle", doc_id, doc, qs, is_duplicate=doc_id in duplicates
-                        )
-                    except Exception as e:
-                        logger.warning(f'failed handling row {row} in {doc_file} ({qs_file})')
-                        traceback.print_exc()
-                        continue
+        try:
+            with gzip.open(doc_file, "rt", encoding="utf-8") as df:
+                with gzip.open(qs_file, "rt", encoding="utf-8") as qf:
+                    for row, (doc, qs) in enumerate(zip(df, qf)):
+                        doc_id = f"{base_tag}.json.gz/{row}"
+
+                        try:
+                            yield self.handle_record(
+                                "head_middle", doc_id, doc, qs, is_duplicate=doc_id in duplicates
+                            )
+                        except Exception as e:
+                            logger.warning(f'failed handling row {row} in {doc_file} ({qs_file})')
+                            traceback.print_exc()
+                            continue
+
+        except gzip.BadGzipFile as e:
+            # skip broken gzip files
+            print(f'BadGzipFile: {doc_file, qs_file}')
+            traceback.print_exc()
+            return
 
     @staticmethod
     def handle_record(part, doc_id, doc, qs, is_duplicate=None):