CRITICAL FIX - Database Parameter (graphiti_core):
- Fixed graphiti_core/driver/neo4j_driver.py execute_query method
- database_ parameter was incorrectly added to params dict instead of kwargs
- Now correctly passed as keyword argument to Neo4j driver
- Impact: All queries now execute in configured database (not default 'neo4j')
- Root cause: Violated Neo4j Python driver API contract
Technical Details:
Previous code (BROKEN):
params.setdefault('database_', self._database) # Wrong - in params dict
result = await self.client.execute_query(cypher_query_, parameters_=params, **kwargs)
Fixed code (CORRECT):
kwargs.setdefault('database_', self._database) # Correct - in kwargs
result = await self.client.execute_query(cypher_query_, parameters_=params, **kwargs)
FIX - Index Creation Error Handling (MCP server):
- Added graceful handling for Neo4j IF NOT EXISTS bug
- Prevents MCP server crash when indices already exist
- Logs warning instead of failing initialization
- Handles EquivalentSchemaRuleAlreadyExists error gracefully
Files Modified:
- graphiti_core/driver/neo4j_driver.py (3 lines changed)
- mcp_server/src/graphiti_mcp_server.py (12 lines added error handling)
- mcp_server/pyproject.toml (version bump to 1.0.5)
Testing:
- Python syntax validation: PASSED
- Ruff formatting: PASSED
- Ruff linting: PASSED
Closes issues with:
- Data being stored in wrong Neo4j database
- MCP server crashing on startup with EquivalentSchemaRuleAlreadyExists
- NEO4J_DATABASE environment variable being ignored
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
189 lines
6.5 KiB
Python
189 lines
6.5 KiB
Python
#!/usr/bin/env python3
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"""
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Migrate Graphiti data between databases and group_ids.
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Usage:
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python migrate_group_id.py
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This script migrates data from:
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Source: neo4j database, group_id='lvarming73'
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Target: graphiti database, group_id='6910959f2128b5c4faa22283'
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"""
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from neo4j import GraphDatabase
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import os
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# Configuration
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NEO4J_URI = "bolt://192.168.1.25:7687"
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NEO4J_USER = "neo4j"
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NEO4J_PASSWORD = os.environ.get("NEO4J_PASSWORD", '!"MiTa1205')
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SOURCE_DATABASE = "neo4j"
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SOURCE_GROUP_ID = "lvarming73"
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TARGET_DATABASE = "graphiti"
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TARGET_GROUP_ID = "6910959f2128b5c4faa22283"
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def migrate_data():
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"""Migrate all nodes and relationships from source to target."""
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driver = GraphDatabase.driver(NEO4J_URI, auth=(NEO4J_USER, NEO4J_PASSWORD))
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try:
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# Step 1: Export data from source database
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print(f"\n📤 Exporting data from {SOURCE_DATABASE} database (group_id: {SOURCE_GROUP_ID})...")
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with driver.session(database=SOURCE_DATABASE) as session:
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# Get all nodes with the source group_id
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nodes_result = session.run("""
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MATCH (n {group_id: $group_id})
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RETURN
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id(n) as old_id,
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labels(n) as labels,
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properties(n) as props
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ORDER BY old_id
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""", group_id=SOURCE_GROUP_ID)
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nodes = list(nodes_result)
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print(f" Found {len(nodes)} nodes to migrate")
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if len(nodes) == 0:
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print(" ⚠️ No nodes found. Nothing to migrate.")
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return
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# Get all relationships between nodes with the source group_id
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rels_result = session.run("""
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MATCH (n {group_id: $group_id})-[r]->(m {group_id: $group_id})
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RETURN
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id(startNode(r)) as from_id,
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id(endNode(r)) as to_id,
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type(r) as rel_type,
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properties(r) as props
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""", group_id=SOURCE_GROUP_ID)
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relationships = list(rels_result)
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print(f" Found {len(relationships)} relationships to migrate")
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# Step 2: Create ID mapping (old Neo4j internal ID -> new node UUID)
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print(f"\n📥 Importing data to {TARGET_DATABASE} database (group_id: {TARGET_GROUP_ID})...")
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id_mapping = {}
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with driver.session(database=TARGET_DATABASE) as session:
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# Create nodes
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for node in nodes:
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old_id = node['old_id']
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labels = node['labels']
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props = dict(node['props'])
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# Update group_id
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props['group_id'] = TARGET_GROUP_ID
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# Get the uuid if it exists (for tracking)
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node_uuid = props.get('uuid', old_id)
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# Build labels string
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labels_str = ':'.join(labels)
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# Create node
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result = session.run(f"""
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CREATE (n:{labels_str})
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SET n = $props
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RETURN id(n) as new_id, n.uuid as uuid
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""", props=props)
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record = result.single()
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id_mapping[old_id] = record['new_id']
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print(f" ✅ Created {len(nodes)} nodes")
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# Create relationships
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rel_count = 0
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for rel in relationships:
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from_old_id = rel['from_id']
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to_old_id = rel['to_id']
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rel_type = rel['rel_type']
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props = dict(rel['props']) if rel['props'] else {}
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# Update group_id in relationship properties if it exists
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if 'group_id' in props:
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props['group_id'] = TARGET_GROUP_ID
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# Get new node IDs
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from_new_id = id_mapping.get(from_old_id)
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to_new_id = id_mapping.get(to_old_id)
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if from_new_id is None or to_new_id is None:
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print(f" ⚠️ Skipping relationship: node mapping not found")
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continue
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# Create relationship
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session.run(f"""
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MATCH (a), (b)
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WHERE id(a) = $from_id AND id(b) = $to_id
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CREATE (a)-[r:{rel_type}]->(b)
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SET r = $props
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""", from_id=from_new_id, to_id=to_new_id, props=props)
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rel_count += 1
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print(f" ✅ Created {rel_count} relationships")
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# Step 3: Verify migration
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print(f"\n✅ Migration complete!")
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print(f"\n📊 Verification:")
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with driver.session(database=TARGET_DATABASE) as session:
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# Count nodes in target
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result = session.run("""
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MATCH (n {group_id: $group_id})
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RETURN count(n) as node_count
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""", group_id=TARGET_GROUP_ID)
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target_count = result.single()['node_count']
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print(f" Target database now has {target_count} nodes with group_id={TARGET_GROUP_ID}")
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# Show node types
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result = session.run("""
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MATCH (n {group_id: $group_id})
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RETURN labels(n) as labels, count(*) as count
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ORDER BY count DESC
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""", group_id=TARGET_GROUP_ID)
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print(f"\n Node types:")
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for record in result:
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labels = ':'.join(record['labels'])
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count = record['count']
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print(f" {labels}: {count}")
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print(f"\n🎉 Done! Your data has been migrated successfully.")
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print(f"\nNext steps:")
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print(f"1. Verify the data in Neo4j Browser:")
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print(f" :use graphiti")
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print(f" MATCH (n {{group_id: '{TARGET_GROUP_ID}'}}) RETURN n LIMIT 25")
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print(f"2. Test in LibreChat to ensure everything works")
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print(f"3. Once verified, you can delete the old data:")
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print(f" :use neo4j")
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print(f" MATCH (n {{group_id: '{SOURCE_GROUP_ID}'}}) DETACH DELETE n")
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finally:
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driver.close()
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if __name__ == "__main__":
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print("=" * 70)
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print("Graphiti Data Migration Script")
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print("=" * 70)
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print(f"\nSource: {SOURCE_DATABASE} database, group_id='{SOURCE_GROUP_ID}'")
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print(f"Target: {TARGET_DATABASE} database, group_id='{TARGET_GROUP_ID}'")
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print(f"\nNeo4j URI: {NEO4J_URI}")
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print("=" * 70)
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response = input("\n⚠️ Ready to migrate? This will copy all data. Type 'yes' to continue: ")
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if response.lower() == 'yes':
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migrate_data()
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else:
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print("\n❌ Migration cancelled.")
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