fix(knowledge): list_collections 增加异常保护,防止 ChromaDB 数据丢失导致 /collections 500
遍历 kb_metadata.json 时对每个集合的 get_collection/count 操作包裹 try/except,捕获 NotFoundError/InternalError 等异常后跳过并记录警告, 循环结束后自动清理失效的元数据条目。
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@@ -382,7 +382,10 @@ class CollectionMixin:
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self._save_metadata()
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stale_collections = []
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for name, info in self._metadata.get("collections", {}).items():
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try:
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collection = self.get_collection(name)
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result.append(CollectionInfo(
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name=name,
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@@ -392,6 +395,18 @@ class CollectionMixin:
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department=info.get("department", ""),
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description=info.get("description", "")
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))
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except Exception as e:
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logger.warning(
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f"跳过异常向量库 '{name}': {e},可能是 ChromaDB 数据目录已丢失"
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)
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stale_collections.append(name)
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# 清理元数据中指向已失效集合的条目
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if stale_collections:
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for name in stale_collections:
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self._metadata.get("collections", {}).pop(name, None)
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logger.info(f"清理失效向量库元数据: {name}")
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self._save_metadata()
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return result
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