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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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narek_margaryan
by • New Contributor II
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Resolved! Do Spark nodes read data from storage in a sequence?

I'm new to Spark and trying to understand how some of its components work.I understand that once the data is loaded into the memory of separate nodes, they process partitions in parallel, within their own memory (RAM).But I'm wondering whether the in...

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-werners-
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@Narek Margaryan​ , Normally the reading is done in parallel because the underlying file system is already distributed (if you use HDFS-based storage or something like, a data lake f.e.).The number of partitions in the file itself also matters.This l...

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