SIENTIAPDE-1084

Update README.md to clarify data streaming and storage features

- Revised descriptions for Real-time Data Streaming and Persistent Storage to emphasize historical data streaming capabilities.
- Updated Data Manager section to reflect the integration of both MongoDB and Kafka for data management.
- Enhanced configuration example in the prerequisites section with additional fields for server configuration.

README.md

@@ -7,8 +7,8 @@ A high-performance, scalable OPC UA data ingestion system designed for industria
 ### Core Functionality
 - **OPC UA Integration**: Native support for OPC UA servers with secure and unsecured connections
 - **Automatic Load Balancing**: Slot-based architecture for horizontal scaling across multiple instances
-- **Real-time Data Streaming**: Kafka integration for high-throughput data distribution
-- **Persistent Storage**: MongoDB integration for historical data retention and analysis
+- **Real-time Data Streaming**: Kafka integration for historical data streaming
+- **Persistent Storage**: MongoDB integration for historical data streaming
 - **Health Monitoring**: Comprehensive Prometheus metrics and health checks
 - **Fault Tolerance**: Automatic failover, reconnection, and error recovery
 
@@ -47,7 +47,7 @@ The OPC Ingestor uses a modular, manager-based architecture:
 - **Ingestor**: Main application orchestrator managing the overall lifecycle
 - **IngestorManager**: Coordinates slot allocation, OPC server management, and load balancing
 - **OPC Manager**: Handles individual OPC UA server connections and tag subscriptions
-- **Data Manager**: Manages data persistence (MongoDB) and streaming (Kafka)
+- **Data Manager**: Manages data streaming (MongoDB | Kafka)
 - **Resource Manager**: Coordinates resource allocation and instance coordination via Redis
 
 ## 📋 Prerequisites
@@ -253,14 +253,24 @@ OPC servers are configured through Redis with the following structure:
   "slot:opc_tags:1": {
     "server1": {
       "name": "server1",
+      "server_id": "1",
       "url": "opc.tcp://localhost:4841",
       "server_uri": "http://opcua-server.simulator",
       "tags": {
         "ns=2;i=2": {
-          "tag_name": "Counter",
-          "frequency": 1000,
-          "topics": ["opcua", "counter"]
-        }
+            "aggr_func": "avg",
+            "data_range": [
+               -100,
+               100
+            ],
+            "frequency": "15000",
+            "server_id": "1",
+            "tag_address": "ns=2;i=2",
+            "tag_name": "Counter",
+            "topics": [
+               "raw_scouter-opcua-orchestrated-pipeline",
+               "raw_scouter-basic-sum-model"
+            ]
       }
     }
   }