Insufficient Permissions Error when trying to access table

llmfoundry/command_utils/data_prep/convert_delta_to_json.py

@@ -234,27 +234,7 @@ def run_query(
     elif method == 'dbconnect':
         if spark == None:
             raise ValueError(f'sparkSession is required for dbconnect')
-
-        try:
-            df = spark.sql(query)
-        except Exception as e:
-            from pyspark.errors import AnalysisException
-            if isinstance(e, AnalysisException):
-                if 'INSUFFICIENT_PERMISSIONS' in e.message:  # pyright: ignore
-                    match = re.search(
-                        r"Schema\s+'([^']+)'",
-                        e.message,  # pyright: ignore
-                    )
-                    if match:
-                        schema_name = match.group(1)
-                        action = f'using the schema {schema_name}'
-                    else:
-                        action = 'using the schema'
-                    raise InsufficientPermissionsError(action=action,) from e
-            raise RuntimeError(
-                f'Error in querying into schema. Restart sparkSession and try again',
-            ) from e
-
+        df = spark.sql(query)
         if collect:
             return df.collect()
         return df
@@ -469,71 +449,66 @@ def fetch(
     """
     cursor = dbsql.cursor() if dbsql is not None else None
     try:
-        nrows = get_total_rows(
-            tablename,
-            method,
-            cursor,
-            sparkSession,
-        )
-    except Exception as e:
-        from pyspark.errors import AnalysisException
-        if isinstance(e, AnalysisException):
-            if 'INSUFFICIENT_PERMISSIONS' in e.message:  # pyright: ignore
-                raise InsufficientPermissionsError(
-                    action=f'reading from {tablename}',
-                ) from e
-        if isinstance(e, InsufficientPermissionsError):
-            raise e
-        raise RuntimeError(
-            f'Error in get rows from {tablename}. Restart sparkSession and try again',
-        ) from e
+        # Get total rows
+        nrows = get_total_rows(tablename, method, cursor, sparkSession)
 
-    try:
+        # Get columns info
         columns, order_by, columns_str = get_columns_info(
             tablename,
             method,
             cursor,
             sparkSession,
         )
+
+        if method == 'dbconnect' and sparkSession is not None:
+            log.info(f'{processes=}')
+            df = sparkSession.table(tablename)
+
+            # Running the query and collecting the data as arrow or json.
+            signed, _, _ = df.collect_cf('arrow')  # pyright: ignore
+            log.info(f'len(signed) = {len(signed)}')
+
+            args = get_args(signed, json_output_folder, columns)
+
+            # Stopping the SparkSession to avoid spilling connection state into the subprocesses.
+            sparkSession.stop()
+
+            with ProcessPoolExecutor(max_workers=processes) as executor:
+                list(executor.map(download_starargs, args))
+
+        elif method == 'dbsql' and cursor is not None:
+            for start in range(0, nrows, batch_size):
+                log.warning(f'batch {start}')
+                end = min(start + batch_size, nrows)
+                fetch_data(
+                    method,
+                    cursor,
+                    sparkSession,
+                    start,
+                    end,
+                    order_by,
+                    tablename,
+                    columns_str,
+                    json_output_folder,
+                )
+
     except Exception as e:
-        raise RuntimeError(
-            f'Error in get columns from {tablename}. Restart sparkSession and try again',
-        ) from e
+        from databricks.sql.exc import ServerOperationError
+        from pyspark.errors import AnalysisException
 
-    if method == 'dbconnect' and sparkSession is not None:
-        log.info(f'{processes=}')
-        df = sparkSession.table(tablename)
-
-        # Running the query and collecting the data as arrow or json.
-        signed, _, _ = df.collect_cf('arrow')  # pyright: ignore
-        log.info(f'len(signed) = {len(signed)}')
-
-        args = get_args(signed, json_output_folder, columns)
-
-        # Stopping the SparkSession to avoid spilling connection state into the subprocesses.
-        sparkSession.stop()
-
-        with ProcessPoolExecutor(max_workers=processes) as executor:
-            list(executor.map(download_starargs, args))
-
-    elif method == 'dbsql' and cursor is not None:
-        for start in range(0, nrows, batch_size):
-            log.warning(f'batch {start}')
-            end = min(start + batch_size, nrows)
-            fetch_data(
-                method,
-                cursor,
-                sparkSession,
-                start,
-                end,
-                order_by,
-                tablename,
-                columns_str,
-                json_output_folder,
-            )
+        if isinstance(e, (AnalysisException, ServerOperationError)):
+            if 'INSUFFICIENT_PERMISSIONS' in str(e):
+                raise InsufficientPermissionsError(str(e)) from e
+
+        if isinstance(e, InsufficientPermissionsError):
+            raise
+
+        # For any other exception, raise a general error
+        raise RuntimeError(f'Error processing {tablename}: {str(e)}') from e
 
-    if cursor is not None:
-        cursor.close()
+    finally:
+        if cursor is not None:
+            cursor.close()
 
 
 def validate_and_get_cluster_info(

llmfoundry/utils/exceptions.py

@@ -456,6 +456,13 @@ def __init__(
 class InsufficientPermissionsError(UserError):
     """Error thrown when the user does not have sufficient permissions."""
 
-    def __init__(self, action: str) -> None:
-        message = f'Insufficient permissions when {action}. Please check your permissions.'
-        super().__init__(message, action=action)
+    def __init__(self, message: str) -> None:
+        self.message = message
+        super().__init__(message)
+
+    def __reduce__(self):
+        # Return a tuple of class, a tuple of arguments, and optionally state
+        return (InsufficientPermissionsError, (self.message,))
+
+    def __str__(self):
+        return self.message

tests/a_scripts/data_prep/test_convert_delta_to_json.py

@@ -10,6 +10,7 @@
 from llmfoundry.command_utils.data_prep.convert_delta_to_json import (
     InsufficientPermissionsError,
     download,
+    fetch,
     fetch_DT,
     format_tablename,
     iterative_combine_jsons,
@@ -30,27 +31,33 @@ class MockAnalysisException(Exception):
             def __init__(self, message: str):
                 self.message = message
 
+            def __str__(self):
+                return self.message
+
         with patch.dict('sys.modules', {'pyspark.errors': MagicMock()}):
             sys.modules[
                 'pyspark.errors'
-            ].AnalysisException = MockAnalysisException  # pyright: ignore
+            ].AnalysisException = MockAnalysisException  # type: ignore
 
             mock_spark = MagicMock()
             mock_spark.sql.side_effect = MockAnalysisException(error_message)
 
             with self.assertRaises(InsufficientPermissionsError) as context:
-                run_query(
-                    'SELECT * FROM table',
+                fetch(
                     method='dbconnect',
-                    cursor=None,
-                    spark=mock_spark,
+                    tablename='main.oogabooga',
+                    json_output_folder='/fake/path',
+                    batch_size=1,
+                    processes=1,
+                    sparkSession=mock_spark,
+                    dbsql=None,
                 )
 
-            self.assertIn(
-                'using the schema main.oogabooga',
+            self.assertEqual(
                 str(context.exception),
+                error_message,
             )
-            mock_spark.sql.assert_called_once_with('SELECT * FROM table')
+            mock_spark.sql.assert_called()
 
     @patch(
         'databricks.sql.connect',

tests/utils/test_exceptions.py

@@ -4,7 +4,7 @@
 import contextlib
 import inspect
 import pickle
-from typing import Any, Optional
+from typing import Any, Optional, get_type_hints
 
 import pytest
 
@@ -14,16 +14,30 @@
 def create_exception_object(
     exception_class: type[foundry_exceptions.BaseContextualError],
 ):
-    # get required arg types of exception class by inspecting its __init__ method
 
-    if hasattr(inspect, 'get_annotations'):
-        required_args = inspect.get_annotations( # type: ignore
-            exception_class.__init__,
-        )  # type: ignore
-    else:
-        required_args = exception_class.__init__.__annotations__  # python 3.9 and below
-
-    # create a dictionary of required args with default values
+    def get_init_annotations(cls: type):
+        try:
+            return get_type_hints(cls.__init__)
+        except (AttributeError, TypeError):
+            # Handle cases where __init__ does not exist or has no annotations
+            return {}
+
+    # First, try to get annotations from the class itself
+    required_args = get_init_annotations(exception_class)
+
+    # If the annotations are empty, look at parent classes
+    if not required_args:
+        for parent in exception_class.__bases__:
+            if parent == object:
+                break
+            parent_args = get_init_annotations(parent)
+            if parent_args:
+                required_args = parent_args
+                break
+
+    # Remove self, return, and kwargs
+    required_args.pop('self', None)
+    required_args.pop('return', None)
     required_args.pop('kwargs', None)
 
     def get_default_value(arg_type: Optional[type] = None):
@@ -51,8 +65,6 @@ def get_default_value(arg_type: Optional[type] = None):
             return [{'key': 'value'}]
         raise ValueError(f'Unsupported arg type: {arg_type}')
 
-    required_args.pop('self', None)
-    required_args.pop('return', None)
     kwargs = {
         arg: get_default_value(arg_type)
         for arg, arg_type in required_args.items()
@@ -80,6 +92,7 @@ def filter_exceptions(possible_exceptions: list[str]):
 def test_exception_serialization(
     exception_class: type[foundry_exceptions.BaseContextualError],
 ):
+    print(f'Testing serialization for {exception_class.__name__}')
     excluded_base_classes = [
         foundry_exceptions.InternalError,
         foundry_exceptions.UserError,
@@ -88,13 +101,15 @@ def test_exception_serialization(
     ]
 
     exception = create_exception_object(exception_class)
+    print(f'Created exception object: {exception}')
 
     expect_reduce_error = exception.__class__ in excluded_base_classes
     error_context = pytest.raises(
         NotImplementedError,
     ) if expect_reduce_error else contextlib.nullcontext()
 
     exc_str = str(exception)
+    print(f'Exception string: {exc_str}')
     with error_context:
         pkl = pickle.dumps(exception)
         unpickled_exc = pickle.loads(pkl)