During January 2026, Chandan Singh refactored the SQL module in the apache/stormcrawler repository to enhance performance, readability, and testability. He introduced PreparedStatement usage in both SQLSpout and IndexerBolt, optimizing SQL operations and resource management. To ensure reliability, he expanded unit testing coverage for SQLSpout and StatusUpdaterBolt, and established a standardized test infrastructure using AbstractSQLTest with a shared MySQL container. His work addressed test flakiness and improved resource cleanup, particularly around ScheduledExecutorService shutdown. Leveraging Java, SQL, and unit testing expertise, Chandan’s contributions raised the baseline for code quality and maintainability in the project’s core indexing and integration logic.