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

  • Aug 30, 2022 Spark 2.4 – Slow Performance on Writing into Partitions – Why Sorting Involved
  • Aug 30, 2022 Spark – Create Multiple Output Files per Task using spark.sql.files.maxRecordsPerFile
  • Aug 29, 2022 EMR Spark – Initial Number of Executors and spark.dynamicAllocation.enabled
  • Aug 26, 2022 EMR Spark – Much Larger Executors are Created than Requested
  • Apr 20, 2022 Amazon EMR Spark – Ignoring Partition Filter and Listing All Partitions When Reading from S3A

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