[Bug]: Error: Node not found for id

[zhxlp]

Is there an existing issue for the same bug?

• I have checked the existing issues.

RAGFlow workspace code commit ID

dd0ebbe

RAGFlow image version

infiniflow/ragflow:nightly

Other environment information

Actual behavior

Error accessing knowledge graph page

Expected behavior

No response

Steps to reproduce

Upload a file with a lot of text content, and when its knowledge graph nodes have more than 500 visits to the knowledge graph page, an error will occur

Additional information

ragflow/api/apps/kb_app.py

Lines 319 to 322 in 754d5ea

	if "nodes" in obj["graph"]:
	obj["graph"]["nodes"] = sorted(obj["graph"]["nodes"], key=lambda x: x.get("pagerank", 0), reverse=True)[:256]
	if "edges" in obj["graph"]:
	obj["graph"]["edges"] = sorted(obj["graph"]["edges"], key=lambda x: x.get("weight", 0), reverse=True)[:128]

There is a situation where the "source" attribute value in the first 128 items of ["graph"]["edges"] is not in the first 256 items of ["graph"]["nodes"]

There is a situation where the "target" attribute value in the first 128 items of ["graph"]["edges"] is not in the first 256 items of ["graph"]["nodes"]