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


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.

  • P