[druid-user] Re: Whats the advantage of having multiple middle managers?

Hey!

IMHO it’s redundancy and scale. MMs are serving the overlords with peons - if your MM goes down, the overlord will have nowhere to get ingestion tasks fulfilled. [MiddleManager Process · Apache Druid] And it’s also the scalable unit for ingestion overall - more MMs = more workers = faster parallel ingestion and the opportunity for ingestion task replicas (e.g. Kafka) to cope with failure.

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