Improving Apache Spark Downscaling - Christopher Crosbie (Google) Ben Sidhom (Google)
Summary
Apache Spark downscaling becomes critical in serverless-like environments and with preemptible or spot instances, where frequent node removal can trigger repeated expensive recomputation. Google's Christopher Crosbie and Ben Sidhom explore approaches to improve scale-down on open source cluster managers such as YARN and Kubernetes, from job scheduling to block and shuffle placement.
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