When to use kafka or redis

Elastic Stack Elasticsearch
1

My current setup looks like this

springbootApp -> log.json -> filebeat ->logstash ->elastic ->kibana

I am seeing examples where people use Kafka or Redis. When should I be considering using kafka and when is it not necessary? I am looking to see what tradeoffs and potential pitfalls I have with my current setup?

2

Usually, if you want an ability to separate ingest and processing and allow for extended buffering while also guaranteeing that data is moved off the source host ASAP.

3

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