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
spark
browser-extension
performance
javascript