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fix(ingest): better warnings and error handling for rest sink #2800

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Jun 30, 2021
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fix(ingest): better warnings and error handling for rest sink #2800

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19 changes: 15 additions & 4 deletions metadata-ingestion/src/datahub/emitter/rest_emitter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import logging
import shlex
from collections import OrderedDict
from json.decoder import JSONDecodeError
from typing import Any, List, Optional, Union

import requests
Expand Down Expand Up @@ -63,6 +64,10 @@ class DatahubRestEmitter:
_session: requests.Session

def __init__(self, gms_server: str, token: Optional[str] = None):
if ":9002" in gms_server:
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Can this be better detected by hitting some diagnostic endpoint where the server actually responds with "what" it is?

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Yep - added that to my TODO list

logger.warn(
"the rest emitter should connect to GMS (usually port 8080) instead of frontend"
)
self._gms_server = gms_server
self._token = token

Expand Down Expand Up @@ -119,10 +124,16 @@ def _emit_generic(self, url: str, payload: str) -> None:

response.raise_for_status()
except HTTPError as e:
info = response.json()
raise OperationalError(
"Unable to emit metadata to DataHub GMS", info
) from e
try:
info = response.json()
raise OperationalError(
"Unable to emit metadata to DataHub GMS", info
) from e
except JSONDecodeError:
# If we can't parse the JSON, just raise the original error.
raise OperationalError(
"Unable to emit metadata to DataHub GMS", {"message": str(e)}
) from e
except RequestException as e:
raise OperationalError(
"Unable to emit metadata to DataHub GMS", {"message": str(e)}
Expand Down