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ANKUSH CHOUDHARY JOHALMay 5, 2026 • 15 min read
Performance Test: Flink 1.19 vs. Spark 4.0 vs. Kafka Streams 3.8 Windowed Aggregation Throughput
In high-throughput event processing, windowed aggregation is the silent killer of pipeline...
#performance#test#flink#spark
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ANKUSH CHOUDHARY JOHALMay 2, 2026 • 17 min read
How we tuned JVM 21 ZGC for Apache Flink 1.20 to process 500k events/sec with no GC pause
\n At 3:14 AM on a Tuesday, our Flink 1.20 pipeline processing 480k events/sec started throwing GC....
#tuned#apache#flink#process
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