Migrated to Qdrant

backend/config.py

@@ -10,18 +10,16 @@ class Settings(BaseSettings):
     """Application settings loaded from environment variables."""
     
     # API Configuration
-    openai_api_key: str = Field(..., env="OPENAI_API_KEY")
+    openai_api_key: str = Field(..., env="OPENAI_COMPAT_API_KEY")
-    openai_base_url: str = Field(..., env="OPENAI_BASE_URL")
+    openai_base_url: str = Field(..., env="OPENAI_COMPAT_BASE_URL")
     embedder_api_key: str = Field(..., env="EMBEDDER_API_KEY")
 
     # ollama_base_url: str = Field(..., env="OLLAMA_BASE_URL")
 
     # Database Configuration
-    postgres_host: str = Field("localhost", env="POSTGRES_HOST")
+    qdrant_host: str = Field("localhost", env="QDRANT_HOST")
-    postgres_port: int = Field(5432, env="POSTGRES_PORT")
+    qdrant_port: int = Field(6333, env="QDRANT_PORT")
-    postgres_db: str = Field("mem0_db", env="POSTGRES_DB")
+    qdrant_collection_name: str = Field("mem0", env="QDRANT_COLLECTION_NAME")
-    postgres_user: str = Field("mem0_user", env="POSTGRES_USER")
-    postgres_password: str = Field("mem0_password", env="POSTGRES_PASSWORD")
     
     # Neo4j Configuration
     neo4j_uri: str = Field("bolt://localhost:7687", env="NEO4J_URI")
@@ -35,10 +33,6 @@ class Settings(BaseSettings):
     # Model Configuration - Ultra-minimal (single model)
     default_model: str = Field("claude-sonnet-4", env="DEFAULT_MODEL")
     
-    @property
-    def postgres_url(self) -> str:
-        """Build PostgreSQL connection URL."""
-        return f"postgresql://{self.postgres_user}:{self.postgres_password}@{self.postgres_host}:{self.postgres_port}/{self.postgres_db}"
     
     @property
     def cors_origins_list(self) -> List[str]:
@@ -51,4 +45,4 @@ class Settings(BaseSettings):
 
 
 # Global settings instance
-settings = Settings()
+settings = Settings()

backend/mem0_manager.py

@@ -39,14 +39,13 @@ class Mem0Manager:
                 }
             },
             "vector_store": {
-                "provider": "pgvector",
+                "provider": "qdrant",
                 "config": {
-                    "dbname": settings.postgres_db,
+                    "collection_name": settings.qdrant_collection_name,
-                    "user": settings.postgres_user,
+                    "host": settings.qdrant_host,
-                    "password": settings.postgres_password,
+                    "port": settings.qdrant_port,
-                    "host": settings.postgres_host,
+                    "embedding_model_dims": 2560,
-                    "port": settings.postgres_port,
+                    "on_disk": True
-                    "embedding_model_dims": 2560
                 }
             },
             "graph_store": {

backend/requirements.txt

@@ -9,8 +9,7 @@ openai
 google-genai
 
 # Database
-psycopg2-binary
+qdrant-client
-pgvector
 neo4j
 langchain-neo4j
 rank-bm25
@@ -30,4 +29,4 @@ python-json-logger
 
 # CORS and Security
 python-jose[cryptography]
-passlib[bcrypt]
+passlib[bcrypt]

config/postgres-init.sql

@@ -1,66 +0,0 @@
--- Initialize PostgreSQL database for Mem0 with pgvector extension
-
--- Create the pgvector extension for vector operations
-CREATE EXTENSION IF NOT EXISTS vector;
-
--- Create user if not exists (in case it's needed)
-DO
-$do$
-BEGIN
-   IF NOT EXISTS (
-      SELECT FROM pg_catalog.pg_roles
-      WHERE  rolname = 'mem0_user') THEN
-
-      CREATE ROLE mem0_user LOGIN PASSWORD 'mem0_password';
-   END IF;
-END
-$do$;
-
--- Grant necessary permissions
-GRANT ALL PRIVILEGES ON DATABASE mem0_db TO mem0_user;
-GRANT ALL ON SCHEMA public TO mem0_user;
-
--- Create table for vector embeddings (if needed by Mem0's pgvector implementation)
-CREATE TABLE IF NOT EXISTS embeddings (
-    id SERIAL PRIMARY KEY,
-    user_id VARCHAR(255),
-    content TEXT,
-    embedding VECTOR(2560),  -- OpenAI embedding dimension
-    metadata JSONB,
-    created_at TIMESTAMP DEFAULT NOW()
-);
-
--- Create index for efficient vector similarity search
-CREATE INDEX IF NOT EXISTS embeddings_embedding_idx ON embeddings 
-USING ivfflat (embedding vector_cosine_ops) WITH (lists = 100);
-
--- Create index for user_id lookups
-CREATE INDEX IF NOT EXISTS embeddings_user_id_idx ON embeddings (user_id);
-
--- Create index for metadata queries
-CREATE INDEX IF NOT EXISTS embeddings_metadata_idx ON embeddings USING GIN (metadata);
-
--- Grant permissions on the table
-GRANT ALL PRIVILEGES ON TABLE embeddings TO mem0_user;
-GRANT USAGE, SELECT ON SEQUENCE embeddings_id_seq TO mem0_user;
-
--- Create table for memory history tracking
-CREATE TABLE IF NOT EXISTS memory_history (
-    id SERIAL PRIMARY KEY,
-    memory_id VARCHAR(255),
-    user_id VARCHAR(255),
-    action VARCHAR(50),
-    previous_value TEXT,
-    new_value TEXT,
-    metadata JSONB,
-    created_at TIMESTAMP DEFAULT NOW()
-);
-
--- Create indexes for memory history
-CREATE INDEX IF NOT EXISTS memory_history_memory_id_idx ON memory_history (memory_id);
-CREATE INDEX IF NOT EXISTS memory_history_user_id_idx ON memory_history (user_id);
-CREATE INDEX IF NOT EXISTS memory_history_created_at_idx ON memory_history (created_at);
-
--- Grant permissions
-GRANT ALL PRIVILEGES ON TABLE memory_history TO mem0_user;
-GRANT USAGE, SELECT ON SEQUENCE memory_history_id_seq TO mem0_user;

docker-compose.yml

@@ -1,20 +1,17 @@
 services:
-  # PostgreSQL with pgvector extension for vector storage
+  # Qdrant vector database for vector storage
-  postgres:
+  qdrant:
-    image: pgvector/pgvector:pg17-trixie
+    image: qdrant/qdrant:latest
-    container_name: mem0-postgres
+    container_name: mem0-qdrant
-    environment:
-      POSTGRES_DB: ${POSTGRES_DB:-mem0_db}
-      POSTGRES_USER: ${POSTGRES_USER:-mem0_user}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-mem0_password}
     expose:
-      - "5432"
+      - "6333"
     volumes:
-      - postgres_data:/var/lib/postgresql/data
+      - qdrant_data:/qdrant/storage
-      - ./config/postgres-init.sql:/docker-entrypoint-initdb.d/init.sql
+    command: >
+      sh -c "apt-get update && apt-get install -y curl && ./entrypoint.sh"
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-mem0_user} -d ${POSTGRES_DB:-mem0_db}"]
+      test: ["CMD", "curl", "-f", "http://localhost:6333/"]
-      interval: 5s
+      interval: 10s
       timeout: 5s
       retries: 5
     restart: unless-stopped
@@ -57,11 +54,9 @@ services:
       OPENAI_API_KEY: ${OPENAI_COMPAT_API_KEY}
       OPENAI_BASE_URL: ${OPENAI_COMPAT_BASE_URL}
       EMBEDDER_API_KEY: ${EMBEDDER_API_KEY:-AIzaSyA_}
-      POSTGRES_HOST: postgres
+      QDRANT_HOST: qdrant
-      POSTGRES_PORT: 5432
+      QDRANT_PORT: 6333
-      POSTGRES_DB: ${POSTGRES_DB:-mem0_db}
+      QDRANT_COLLECTION_NAME: ${QDRANT_COLLECTION_NAME:-mem0}
-      POSTGRES_USER: ${POSTGRES_USER:-mem0_user}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-mem0_password}
       NEO4J_URI: bolt://neo4j:7687
       NEO4J_USERNAME: ${NEO4J_USERNAME:-neo4j}
       NEO4J_PASSWORD: ${NEO4J_PASSWORD:-mem0_neo4j_password}
@@ -71,7 +66,7 @@ services:
     ports:
       - "${BACKEND_PORT:-8000}:8000"
     depends_on:
-      postgres:
+      qdrant:
         condition: service_healthy
       neo4j:
         condition: service_healthy
@@ -81,7 +76,7 @@ services:
     command: ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000", "--reload"]
 
 volumes:
-  postgres_data:
+  qdrant_data:
   neo4j_data:
   neo4j_logs:
   neo4j_import:
@@ -89,4 +84,4 @@ volumes:
 
 networks:
   default:
-    name: mem0-network
+    name: mem0-network

frontend/index.html

@@ -37,7 +37,14 @@
             padding: 20px;
             background: #fafafa;
             border-bottom: 1px solid #e0e0e0;
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+        }
+
+        .chat-header-content {
             text-align: center;
+            flex: 1;
         }
 
         .chat-header h1 {
@@ -51,6 +58,31 @@
             font-size: 14px;
         }
 
+        .clear-chat-btn {
+            background: #f8f9fa;
+            color: #666;
+            border: 1px solid #e0e0e0;
+            padding: 8px 12px;
+            border-radius: 6px;
+            cursor: pointer;
+            font-size: 12px;
+            font-weight: 500;
+            display: flex;
+            align-items: center;
+            gap: 5px;
+            transition: all 0.2s ease;
+        }
+
+        .clear-chat-btn:hover {
+            background: #e9ecef;
+            border-color: #ced4da;
+            color: #495057;
+        }
+
+        .clear-chat-btn:active {
+            background: #dee2e6;
+        }
+
         .chat-messages {
             flex: 1;
             overflow-y: auto;
@@ -242,8 +274,13 @@
         <!-- Chat Section -->
         <div class="chat-section">
             <div class="chat-header">
-                <h1>What can I help you with?</h1>
+                <div class="chat-header-content">
-                <p>Chat with your memories - User: pratik</p>
+                    <h1>What can I help you with?</h1>
+                    <p>Chat with your memories - User: pratik</p>
+                </div>
+                <button class="clear-chat-btn" id="clearChatBtn" title="Clear chat history">
+                    🗑️ Clear Chat
+                </button>
             </div>
             
             <div class="chat-messages" id="chatMessages">
@@ -281,6 +318,7 @@
         const memoriesList = document.getElementById('memoriesList');
         const memoryCount = document.getElementById('memoryCount');
         const refreshButton = document.getElementById('refreshMemories');
+        const clearChatBtn = document.getElementById('clearChatBtn');
 
         // Chat history in localStorage
         let chatHistory = JSON.parse(localStorage.getItem('chatHistory') || '[]');
@@ -296,6 +334,7 @@
                 if (e.key === 'Enter') sendMessage();
             });
             refreshButton.addEventListener('click', loadMemories);
+            clearChatBtn.addEventListener('click', clearChatWithConfirmation);
         });
 
         // Load chat history from localStorage
@@ -493,6 +532,13 @@
             }, 5000);
         }
 
+        // Clear chat history with confirmation
+        function clearChatWithConfirmation() {
+            if (confirm('Are you sure you want to clear the chat history? This action cannot be undone.')) {
+                clearChatHistory();
+            }
+        }
+
         // Clear chat history (for debugging)
         function clearChatHistory() {
             chatHistory = [];