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Kafka slow consuming and messages duplication

posted in programming, Tech on February 15, 2020 by admin

Kafka is super fast. One design tradeoff to achieve very high through put is to put more responsibilities on client side. The underlying concept of messages fetching in Kafka client API is simple enough. But there are many behavior of the API that could be well understood only by spending some time studying how it… Continue reading →

Kafka offset commit with lots of partitions

posted in programming on June 15, 2019 by admin

My team just had a problem with our shared Kafka cluster. Logstash processes in centralized-logging system were getting unstable and crashing. These Logstash sends logs to Kafka as a buffer before consuming the messages out and insert to ES. My colleague were suspecting that one of our new deployed application could be the cause of… Continue reading →

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concurrency kafka reactive software architecture