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Feat: add fault-tolerant mechanism to GraphRAG (#10708)

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### What problem does this PR solve?

Add fault-tolerant mechanism to GraphRAG. #10406.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)
This commit is contained in:
Yongteng Lei
2025-10-22 09:29:04 +08:00
committed by GitHub
parent 9a4cd81891
commit acc0f7396e
1 changed files with 27 additions and 7 deletions
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34
graphrag/general/extractor.py
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@ -105,16 +105,36 @@ class Extractor:
async def extract_all(doc_id, chunks, max_concurrency=MAX_CONCURRENT_PROCESS_AND_EXTRACT_CHUNK):
out_results = []
error_count = 0
max_errors = 3
limiter = trio.Semaphore(max_concurrency)
async def worker(chunk_key_dp: tuple[str, str], idx: int, total: int):
nonlocal error_count
async with limiter:
await self._process_single_content(chunk_key_dp, idx, total, out_results)
try:
await self._process_single_content(chunk_key_dp, idx, total, out_results)
except Exception as e:
error_count += 1
error_msg = f"Error processing chunk {idx+1}/{total}: {str(e)}"
logging.warning(error_msg)
if self.callback:
self.callback(msg=error_msg)
if error_count > max_errors:
raise Exception(f"Maximum error count ({max_errors}) reached. Last errors: {str(e)}")
async with trio.open_nursery() as nursery:
for i, ck in enumerate(chunks):
nursery.start_soon(worker, (doc_id, ck), i, len(chunks))
if error_count > 0:
warning_msg = f"Completed with {error_count} errors (out of {len(chunks)} chunks processed)"
logging.warning(warning_msg)
if self.callback:
self.callback(msg=warning_msg)
return out_results
out_results = await extract_all(doc_id, chunks, max_concurrency=MAX_CONCURRENT_PROCESS_AND_EXTRACT_CHUNK)
@ -129,8 +149,8 @@ class Extractor:
maybe_edges[tuple(sorted(k))].extend(v)
sum_token_count += token_count
now = trio.current_time()
if callback:
callback(msg=f"Entities and relationships extraction done, {len(maybe_nodes)} nodes, {len(maybe_edges)} edges, {sum_token_count} tokens, {now - start_ts:.2f}s.")
if self.callback:
self.callback(msg=f"Entities and relationships extraction done, {len(maybe_nodes)} nodes, {len(maybe_edges)} edges, {sum_token_count} tokens, {now - start_ts:.2f}s.")
start_ts = now
logging.info("Entities merging...")
all_entities_data = []
@ -138,8 +158,8 @@ class Extractor:
for en_nm, ents in maybe_nodes.items():
nursery.start_soon(self._merge_nodes, en_nm, ents, all_entities_data)
now = trio.current_time()
if callback:
callback(msg=f"Entities merging done, {now - start_ts:.2f}s.")
if self.callback:
self.callback(msg=f"Entities merging done, {now - start_ts:.2f}s.")
start_ts = now
logging.info("Relationships merging...")
@ -148,8 +168,8 @@ class Extractor:
for (src, tgt), rels in maybe_edges.items():
nursery.start_soon(self._merge_edges, src, tgt, rels, all_relationships_data)
now = trio.current_time()
if callback:
callback(msg=f"Relationships merging done, {now - start_ts:.2f}s.")
if self.callback:
self.callback(msg=f"Relationships merging done, {now - start_ts:.2f}s.")
if not len(all_entities_data) and not len(all_relationships_data):
logging.warning("Didn't extract any entities and relationships, maybe your LLM is not working")