Fix log analysis agent: Addressed Parsing crash and model incompatibility issues #411
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venkatesh71097
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venkatesh71097
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🛠️ Fix Log Analysis Agent: Robust Parsing & Bug Fixes
📋 Summary
This PR addresses critical stability issues in the log analysis agent caused by model incompatibility and output parsing failures. It specifically fixes the
AttributeError: 'NoneType'crash, handles reasoning models (likellama-3.3-nemotron) gracefully, and resolves Pydantic deprecation warnings.🐛 Issues Fixed
AttributeError: 'NoneType' object has no attribute 'binary_score'occurring when the model output parser failed.<think>blocks (reasoning traces) broke the standard JSON parser.- Deprecation Warnings: Resolved
LangChainDeprecationWarningrelated topydantic_v1.🚀 Changes
| Component | Change Description |
|-----------|--------------------|
| utils.py | Implemented a robust regex-based parsing pipeline. It now aggressively strips
<think>reasoning tags before parsing JSON, ensuring stability even with "chatty" or reasoning-heavy models. Restored missingimport json. || graphnodes.py | Added defensive coding with
.get()access and null checks to handle graceful degradation if a grader returnsNone. || graphedges.py | Updated logic to correctly handle dictionary outputs instead of expecting Pydantic objects. |
| binary_score_models.py | Migrated to direct
pydantic(v2) imports. || .gitignore | Added ignore rules for .env, debug_log.txt, and
.venv/. |