Large-Scale Data Engineering in Cloud

Performance Tuning, Cost Optimization / Internals, Research

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  • AWS,  EMR,  Hadoop,  YARN

    Amazon EMR – Downscaling and Ghost (Impaired) Nodes

    August 27, 2019

    I already wrote about recovering the ghost nodes in Amazon EMR clusters, but in this article I am going to extend this information for EMR clusters configured for auto-scaling.

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    dmtolpeko

Recent Posts

  • Apr 20, 2022 Amazon EMR Spark – Ignoring Partition Filter and Listing All Partitions When Reading from S3A
  • Mar 19, 2021 Spark – Reading Parquet – Why the Number of Tasks can be Much Larger than the Number of Row Groups
  • Mar 07, 2021 Spark – Reading Parquet – Predicate Pushdown for LIKE Operator – EqualTo, StartsWith and Contains Pushed Filters
  • Jan 15, 2021 Parquet 1.x File Format – Footer Content
  • Jan 02, 2021 Flink and S3 Entropy Injection for Checkpoints

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