A Chrome and Firefox extension that analyses Apache Spark Web UI pages and overlays visual diagnostics — highlighting performance issues, query problems, and cluster imbalances directly in the browser. No cluster modifications needed.
16 diagnostic checks including
•Data skew detection
•Shuffle spill identification
•GC pressure analysis
•Join strategy evaluation
•Predicate pushdown verification
•Executor imbalance detection
•Straggler task identification
•PII pattern detection
sparkbrowser-extensionperformancejavascript