fix(ingest/mode): add connection timeouts to avoid RemoteDisconnected…

… errors (datahub-project#11245)

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

@@ -15,6 +15,8 @@
 import yaml
 from liquid import Template, Undefined
 from pydantic import Field, validator
+from requests.adapters import HTTPAdapter, Retry
+from requests.exceptions import ConnectionError
 from requests.models import HTTPBasicAuth, HTTPError
 from sqllineage.runner import LineageRunner
 from tenacity import retry_if_exception_type, stop_after_attempt, wait_exponential
@@ -127,6 +129,10 @@ class ModeAPIConfig(ConfigModel):
     max_attempts: int = Field(
         default=5, description="Maximum number of attempts to retry before failing"
     )
+    timeout: int = Field(
+        default=40,
+        description="Timout setting, how long to wait for the Mode rest api to send data before giving up",
+    )
 
 
 class ModeConfig(StatefulIngestionConfigBase, DatasetLineageProviderConfigBase):
@@ -299,7 +305,15 @@ def __init__(self, ctx: PipelineContext, config: ModeConfig):
         self.report = ModeSourceReport()
         self.ctx = ctx
 
-        self.session = requests.session()
+        self.session = requests.Session()
+        # Handling retry and backoff
+        retries = 3
+        backoff_factor = 10
+        retry = Retry(total=retries, backoff_factor=backoff_factor)
+        adapter = HTTPAdapter(max_retries=retry)
+        self.session.mount("http://", adapter)
+        self.session.mount("https://", adapter)
+
         self.session.auth = HTTPBasicAuth(
             self.config.token,
             self.config.password.get_secret_value(),
@@ -1469,15 +1483,16 @@ def _get_request_json(self, url: str) -> Dict:
                 multiplier=self.config.api_options.retry_backoff_multiplier,
                 max=self.config.api_options.max_retry_interval,
             ),
-            retry=retry_if_exception_type(HTTPError429),
+            retry=retry_if_exception_type((HTTPError429, ConnectionError)),
             stop=stop_after_attempt(self.config.api_options.max_attempts),
         )
 
         @r.wraps
         def get_request():
             try:
-                response = self.session.get(url)
-                response.raise_for_status()
+                response = self.session.get(
+                    url, timeout=self.config.api_options.timeout
+                )
                 return response.json()
             except HTTPError as http_error:
                 error_response = http_error.response

metadata-ingestion/tests/integration/mode/test_mode.py

@@ -45,8 +45,12 @@ def __init__(self, error_list, status_code):
     def json(self):
         return self.json_data
 
-    def get(self, url):
+    def mount(self, prefix, adaptor):
+        return self
+
+    def get(self, url, timeout=40):
         self.url = url
+        self.timeout = timeout
         response_json_path = f"{test_resources_dir}/setup/{JSON_RESPONSE_MAP.get(url)}"
         with open(response_json_path) as file:
             data = json.loads(file.read())
@@ -74,7 +78,7 @@ def mocked_requests_failure(*args, **kwargs):
 @freeze_time(FROZEN_TIME)
 def test_mode_ingest_success(pytestconfig, tmp_path):
     with patch(
-        "datahub.ingestion.source.mode.requests.session",
+        "datahub.ingestion.source.mode.requests.Session",
         side_effect=mocked_requests_sucess,
     ):
         pipeline = Pipeline.create(
@@ -111,7 +115,7 @@ def test_mode_ingest_success(pytestconfig, tmp_path):
 @freeze_time(FROZEN_TIME)
 def test_mode_ingest_failure(pytestconfig, tmp_path):
     with patch(
-        "datahub.ingestion.source.mode.requests.session",
+        "datahub.ingestion.source.mode.requests.Session",
         side_effect=mocked_requests_failure,
     ):
         global test_resources_dir