fix(ingestion): add logging, make job more resilient to errors (#4331)

.gitignore

@@ -59,4 +59,5 @@ smoke-test/spark-smoke-test/__pycache__/
 metadata-ingestion/generated/**
 
 # docs
-docs/generated/
+docs/generated/
+tmp*

metadata-ingestion/source_docs/snowflake.md

@@ -17,7 +17,7 @@ create or replace role datahub_role;
 
 // Grant privileges to use and select from your target warehouses / dbs / schemas / tables
 grant operate, usage on warehouse <your-warehouse> to role datahub_role;
-grant usage on <your-database> to role datahub_role;
+grant usage on DATABASE <your-database> to role datahub_role;
 grant usage on all schemas in database <your-database> to role datahub_role; 
 grant select on all tables in database <your-database> to role datahub_role; 
 grant select on all external tables in database <your-database> to role datahub_role;
@@ -27,6 +27,9 @@ grant select on all views in database <your-database> to role datahub_role;
 grant usage on future schemas in database "<your-database>" to role datahub_role;
 grant select on future tables in database "<your-database>" to role datahub_role;
 
+// Grant privileges on snowflake default database - needed for lineage
+grant imported privileges on DATABASE snowflake to role datahub_role;
+
 // Create a new DataHub user and assign the DataHub role to it 
 create user datahub_user display_name = 'DataHub' password='' default_role = datahub_role default_warehouse = '<your-warehouse>';
 

metadata-ingestion/src/datahub/emitter/rest_emitter.py

@@ -136,12 +136,17 @@ def __init__(
         self._session.mount("http://", adapter)
         self._session.mount("https://", adapter)
 
-    def test_connection(self) -> None:
+    def test_connection(self) -> str:
         response = self._session.get(f"{self._gms_server}/config")
         if response.status_code == 200:
             config: dict = response.json()
             if config.get("noCode") == "true":
-                return
+                return (
+                    config.get("versions", {})
+                    .get("linkedin/datahub", {})
+                    .get("version", "")
+                )
+
             else:
                 # Looks like we either connected to an old GMS or to some other service. Let's see if we can determine which before raising an error
                 # A common misconfiguration is connecting to datahub-frontend so we special-case this check

metadata-ingestion/src/datahub/ingestion/api/source.py

@@ -14,6 +14,7 @@ class SourceReport(Report):
 
     warnings: Dict[str, List[str]] = field(default_factory=dict)
     failures: Dict[str, List[str]] = field(default_factory=dict)
+    cli_version: str = ""
 
     def report_workunit(self, wu: WorkUnit) -> None:
         self.workunits_produced += 1

metadata-ingestion/src/datahub/ingestion/run/pipeline.py

@@ -8,6 +8,7 @@
 import click
 from pydantic import validator
 
+import datahub
 from datahub.configuration.common import (
     ConfigModel,
     DynamicTypedConfig,
@@ -178,6 +179,7 @@ def run(self) -> None:
 
         callback = LoggingCallback()
         extractor: Extractor = self.extractor_class()
+        self.source.get_report().cli_version = datahub.nice_version_name()
         for wu in itertools.islice(
             self.source.get_workunits(), 10 if self.preview_mode else None
         ):

metadata-ingestion/src/datahub/ingestion/sink/datahub_rest.py

@@ -24,17 +24,22 @@ class DatahubRestSinkConfig(DatahubClientConfig):
     pass
 
 
+@dataclass
+class DataHubRestSinkReport(SinkReport):
+    gms_version: str = ""
+
+
 @dataclass
 class DatahubRestSink(Sink):
     config: DatahubRestSinkConfig
     emitter: DatahubRestEmitter
-    report: SinkReport
+    report: DataHubRestSinkReport
     treat_errors_as_warnings: bool = False
 
     def __init__(self, ctx: PipelineContext, config: DatahubRestSinkConfig):
         super().__init__(ctx)
         self.config = config
-        self.report = SinkReport()
+        self.report = DataHubRestSinkReport()
         self.emitter = DatahubRestEmitter(
             self.config.server,
             self.config.token,
@@ -45,7 +50,7 @@ def __init__(self, ctx: PipelineContext, config: DatahubRestSinkConfig):
             extra_headers=self.config.extra_headers,
             ca_certificate_path=self.config.ca_certificate_path,
         )
-        self.emitter.test_connection()
+        self.report.gms_version = self.emitter.test_connection()
         self.executor = concurrent.futures.ThreadPoolExecutor(
             max_workers=self.config.max_threads
         )

metadata-ingestion/src/datahub/ingestion/source/sql/bigquery.py

@@ -364,9 +364,10 @@ def _compute_bigquery_lineage_via_gcp_logging(
             )
             self.lineage_metadata = self._create_lineage_map(parsed_entries)
         except Exception as e:
-            logger.error(
-                "Error computing lineage information using GCP logs.",
-                e,
+            self.error(
+                logger,
+                "lineage-gcp-logs",
+                f"Error was {e}",
             )
 
     def _compute_bigquery_lineage_via_exported_bigquery_audit_metadata(
@@ -385,9 +386,10 @@ def _compute_bigquery_lineage_via_exported_bigquery_audit_metadata(
             )
             self.lineage_metadata = self._create_lineage_map(parsed_entries)
         except Exception as e:
-            logger.error(
-                "Error computing lineage information using exported GCP audit logs.",
-                e,
+            self.error(
+                logger,
+                "lineage-exported-gcp-audit-logs",
+                f"Error: {e}",
             )
 
     def _make_bigquery_client(

metadata-ingestion/src/datahub/ingestion/source/sql/snowflake.py

@@ -66,6 +66,10 @@ class SnowflakeReport(SQLSourceReport):
     num_view_to_table_edges_scanned: int = 0
     num_external_table_edges_scanned: int = 0
     upstream_lineage: Dict[str, List[str]] = field(default_factory=dict)
+    # https://community.snowflake.com/s/topic/0TO0Z000000Unu5WAC/releases
+    saas_version: str = ""
+    role: str = ""
+    role_grants: List[str] = field(default_factory=list)
 
 
 class BaseSnowflakeConfig(BaseTimeWindowConfig):
@@ -203,27 +207,59 @@ def create(cls, config_dict, ctx):
         config = SnowflakeConfig.parse_obj(config_dict)
         return cls(config, ctx)
 
-    def get_inspectors(self) -> Iterable[Inspector]:
-        url = self.config.get_sql_alchemy_url(database=None)
+    def get_metadata_engine(
+        self, database: Optional[str] = None
+    ) -> sqlalchemy.engine.Engine:
+        url = self.config.get_sql_alchemy_url(database=database)
         logger.debug(f"sql_alchemy_url={url}")
-
-        db_listing_engine = create_engine(
+        return create_engine(
             url,
             connect_args=self.config.get_sql_alchemy_connect_args(),
             **self.config.options,
         )
 
+    def inspect_version(self) -> Any:
+        db_engine = self.get_metadata_engine()
+        logger.info("Checking current version")
+        for db_row in db_engine.execute("select CURRENT_VERSION()"):
+            self.report.saas_version = db_row[0]
+
+    def inspect_role_grants(self) -> Any:
+        db_engine = self.get_metadata_engine()
+        cur_role = None
+        if self.config.role is None:
+            for db_row in db_engine.execute("select CURRENT_ROLE()"):
+                cur_role = db_row[0]
+        else:
+            cur_role = self.config.role
+
+        if cur_role is None:
+            return
+
+        self.report.role = cur_role
+        logger.info(f"Current role is {cur_role}")
+        if cur_role.lower() == "accountadmin":
+            return
+
+        logger.info(f"Checking grants for role {cur_role}")
+        for db_row in db_engine.execute(text(f"show grants to role {cur_role}")):
+            privilege = db_row["privilege"]
+            granted_on = db_row["granted_on"]
+            name = db_row["name"]
+            self.report.role_grants.append(
+                f"{privilege} granted on {granted_on} {name}"
+            )
+
+    def get_inspectors(self) -> Iterable[Inspector]:
+        db_listing_engine = self.get_metadata_engine(database=None)
+
         for db_row in db_listing_engine.execute(text("SHOW DATABASES")):
             db = db_row.name
             if self.config.database_pattern.allowed(db):
                 # We create a separate engine for each database in order to ensure that
                 # they are isolated from each other.
                 self.current_database = db
-                engine = create_engine(
-                    self.config.get_sql_alchemy_url(database=db),
-                    connect_args=self.config.get_sql_alchemy_connect_args(),
-                    **self.config.options,
-                )
+                engine = self.get_metadata_engine(database=db)
 
                 with engine.connect() as conn:
                     inspector = inspect(conn)
@@ -273,9 +309,11 @@ def _populate_view_upstream_lineage(self, engine: sqlalchemy.engine.Engine) -> N
                     f"Upstream->View: Lineage[View(Down)={view_name}]:Upstream={view_upstream}"
                 )
         except Exception as e:
-            logger.warning(
-                f"Extracting the upstream view lineage from Snowflake failed."
-                f"Please check your permissions. Continuing...\nError was {e}."
+            self.warn(
+                logger,
+                "view_upstream_lineage",
+                "Extracting the upstream view lineage from Snowflake failed."
+                + f"Please check your permissions. Continuing...\nError was {e}.",
             )
         logger.info(f"A total of {num_edges} View upstream edges found.")
         self.report.num_table_to_view_edges_scanned = num_edges
@@ -387,9 +425,11 @@ def _populate_view_downstream_lineage(
                 num_edges += 1
 
         except Exception as e:
-            logger.warning(
+            self.warn(
+                logger,
+                "view_downstream_lineage",
                 f"Extracting the view lineage from Snowflake failed."
-                f"Please check your permissions. Continuing...\nError was {e}."
+                f"Please check your permissions. Continuing...\nError was {e}.",
             )
         logger.info(
             f"Found {num_edges} View->Table edges. Removed {num_false_edges} false Table->Table edges."
@@ -399,16 +439,12 @@ def _populate_view_downstream_lineage(
     def _populate_view_lineage(self) -> None:
         if not self.config.include_view_lineage:
             return
-        url = self.config.get_sql_alchemy_url()
-        logger.debug(f"sql_alchemy_url={url}")
-        engine = create_engine(url, **self.config.options)
+        engine = self.get_metadata_engine(database=None)
         self._populate_view_upstream_lineage(engine)
         self._populate_view_downstream_lineage(engine)
 
     def _populate_external_lineage(self) -> None:
-        url = self.config.get_sql_alchemy_url()
-        logger.debug(f"sql_alchemy_url={url}")
-        engine = create_engine(url, **self.config.options)
+        engine = self.get_metadata_engine(database=None)
         # Handles the case where a table is populated from an external location via copy.
         # Eg: copy into category_english from 's3://acryl-snow-demo-olist/olist_raw_data/category_english'credentials=(aws_key_id='...' aws_secret_key='...')  pattern='.*.csv';
         query: str = """
@@ -464,21 +500,17 @@ def _populate_external_lineage(self) -> None:
                 )
                 num_edges += 1
         except Exception as e:
-            logger.warning(
+            self.warn(
+                logger,
+                "external_lineage",
                 f"Populating external table lineage from Snowflake failed."
-                f"Please check your premissions. Continuing...\nError was {e}."
+                f"Please check your premissions. Continuing...\nError was {e}.",
             )
         logger.info(f"Found {num_edges} external lineage edges.")
         self.report.num_external_table_edges_scanned = num_edges
 
     def _populate_lineage(self) -> None:
-        url = self.config.get_sql_alchemy_url()
-        logger.debug(f"sql_alchemy_url={url}")
-        engine = create_engine(
-            url,
-            connect_args=self.config.get_sql_alchemy_connect_args(),
-            **self.config.options,
-        )
+        engine = self.get_metadata_engine(database=None)
         query: str = """
 WITH table_lineage_history AS (
     SELECT
@@ -521,9 +553,11 @@ def _populate_lineage(self) -> None:
                     f"Lineage[Table(Down)={key}]:Table(Up)={self._lineage_map[key]}"
                 )
         except Exception as e:
-            logger.warning(
+            self.warn(
+                logger,
+                "lineage",
                 f"Extracting lineage from Snowflake failed."
-                f"Please check your premissions. Continuing...\nError was {e}."
+                f"Please check your premissions. Continuing...\nError was {e}.",
             )
         logger.info(
             f"A total of {num_edges} Table->Table edges found"
@@ -611,6 +645,13 @@ def _get_upstream_lineage_info(
 
     # Override the base class method.
     def get_workunits(self) -> Iterable[Union[MetadataWorkUnit, SqlWorkUnit]]:
+        try:
+            self.inspect_version()
+        except Exception as e:
+            self.report.report_failure("version", f"Error: {e}")
+            return
+
+        self.inspect_role_grants()
         for wu in super().get_workunits():
             if (
                 self.config.include_table_lineage