In October 2017, Lexer successfully upgraded its data processing capabilities by migrating its vast dataset of 2.8 billion documents to Elasticsearch 5.4.1, resulting in a 30-40% increase in search speed for its most commonly used features. This migration involved restructuring data into 90 smaller indexes to streamline the process and updating query generation to ensure compatibility with the new system. The upgrade not only improved performance but also established a robust backup system and disaster recovery procedure, allowing for a complete restoration of their data set in just 40 minutes. The migration supports Lexer's goal of helping companies engage with customers by processing up to 30 million pieces of social content per day, with the Elasticsearch upgrade enabling faster indexing and resilient searches. The successful transition also provided Lexer with insights on further enhancing search performance and scalability as they continue to expand their operations.