Fix user_id functionality (#2548)

mem0/memory/main.py

@@ -1,3 +1,4 @@
+import os
 import asyncio
 import concurrent
 import hashlib
@@ -18,7 +19,7 @@ from mem0.configs.prompts import (
     get_update_memory_messages,
 )
 from mem0.memory.base import MemoryBase
-from mem0.memory.setup import setup_config
+from mem0.memory.setup import setup_config, mem0_dir
 from mem0.memory.storage import SQLiteManager
 from mem0.memory.telemetry import capture_event
 from mem0.memory.utils import (
@@ -62,6 +63,16 @@ class Memory(MemoryBase):
             self.graph = MemoryGraph(self.config)
             self.enable_graph = True
 
+        self.config.vector_store.config.collection_name = "mem0_migrations"
+        if self.config.vector_store.provider in ["faiss", "qdrant"]:
+            provider_path = f"migrations_{self.config.vector_store.provider}"
+            self.config.vector_store.config.path = os.path.join(mem0_dir, provider_path)
+            os.makedirs(self.config.vector_store.config.path, exist_ok=True)
+
+        self._telemetry_vector_store = VectorStoreFactory.create(
+            self.config.vector_store.provider, self.config.vector_store.config
+        )
+
         capture_event("mem0.init", self, {"sync_type": "sync"})
 
     @classmethod