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Fix Neo4J index creation to check state instead of analyzer

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• Check index state not analyzer
• Skip if index is ONLINE
• Recreate if state not ONLINE
• Simplify recreation logic
This commit is contained in:
yangdx 2025-09-20 23:51:50 +08:00
parent 9e0dabc34d
commit 040b0c8620
1 changed files with 22 additions and 15 deletions
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37
lightrag/kg/neo4j_impl.py
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@ -246,28 +246,35 @@ class Neo4JStorage(BaseGraphStorage):
existing_index = idx
break
# Check if we need to recreate the index
needs_recreation = False
# Check if index exists and is online
if existing_index:
# Check if the existing index has CJK analyzer
index_config = existing_index.get("options", {})
current_analyzer = index_config.get("indexConfig", {}).get(
"fulltext.analyzer", "standard"
index_state = existing_index.get("state", "UNKNOWN")
logger.info(
f"[{self.workspace}] Found existing index '{index_name}' with state: {index_state}"
)
if current_analyzer != "cjk":
if index_state == "ONLINE":
logger.info(
f"[{self.workspace}] Existing index '{index_name}' uses '{current_analyzer}' analyzer. "
"Recreating with CJK analyzer for Chinese support."
)
needs_recreation = True
else:
logger.debug(
f"[{self.workspace}] Full-text index '{index_name}' already exists with CJK analyzer."
f"[{self.workspace}] Full-text index '{index_name}' already exists and is online. Skipping recreation."
)
return
else:
logger.warning(
f"[{self.workspace}] Existing index '{index_name}' is not online (state: {index_state}). Will recreate."
)
else:
logger.info(
f"[{self.workspace}] No existing index '{index_name}' found. Creating new index."
)
if not existing_index or needs_recreation:
# Create or recreate the index if needed
needs_recreation = (
existing_index is not None
and existing_index.get("state") != "ONLINE"
)
needs_creation = existing_index is None
if needs_recreation or needs_creation:
# Drop existing index if it needs recreation
if needs_recreation:
try: