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Log tracer errors #6066

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merged 3 commits into from
Jun 13, 2023
Merged

Log tracer errors #6066

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c2a7684
Log tracer errors
vowelparrot Jun 12, 2023
ad44606
add to update
vowelparrot Jun 12, 2023
271cdaa
key on (method, type)
vowelparrot Jun 12, 2023
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24 changes: 22 additions & 2 deletions langchain/callbacks/tracers/langchain.py
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,16 @@
from langchain.schema import BaseMessage, messages_to_dict

logger = logging.getLogger(__name__)
_LOGGED = set()


def log_error_once(method: str, exception: Exception) -> None:
"""Log an error once."""
global _LOGGED
if (method, type(exception)) in _LOGGED:
return
_LOGGED.add((method, type(exception)))
logger.error(exception)


class LangChainTracer(BaseTracer):
Expand Down Expand Up @@ -76,11 +86,21 @@ def _persist_run_single(self, run: Run) -> None:
extra = run_dict.get("extra", {})
extra["runtime"] = get_runtime_environment()
run_dict["extra"] = extra
run = self.client.create_run(**run_dict, session_name=self.session_name)
try:
run = self.client.create_run(**run_dict, session_name=self.session_name)
except Exception as e:
# Errors are swallowed by the thread executor so we need to log them here
log_error_once("post", e)
raise

def _update_run_single(self, run: Run) -> None:
"""Update a run."""
self.client.update_run(run.id, **run.dict())
try:
self.client.update_run(run.id, **run.dict())
except Exception as e:
# Errors are swallowed by the thread executor so we need to log them here
log_error_once("patch", e)
raise

def _on_llm_start(self, run: Run) -> None:
"""Persist an LLM run."""
Expand Down