Tagged articles

On‑Heap

3 articles · Page 1 of 1

Programmer1970

Nov 25, 2024 · Backend Development

Deep Dive into Elasticsearch Memory Architecture and Optimization

The article explains Elasticsearch's on‑heap and off‑heap memory design, details each memory pool and its management via LRU, describes Lucene's role in off‑heap storage, and provides practical tips for configuring JVM heap size, cache strategies, and monitoring to achieve stable, high‑performance search.

ElasticsearchJVMLucene

0 likes · 8 min read

Deep Dive into Elasticsearch Memory Architecture and Optimization

Big Data Technology Architecture

Aug 19, 2019 · Big Data

Understanding Spark Unified Memory Management and Dynamic Allocation

This article explains Apache Spark's memory architecture, covering the shift from static to unified memory management, the roles of on‑heap and off‑heap memory, configurable parameters, dynamic memory sharing between execution and storage, and the legacy mode introduced in Spark 1.6.

Apache SparkExecutorMemory Management

0 likes · 7 min read

Understanding Spark Unified Memory Management and Dynamic Allocation

ITPUB

Apr 11, 2017 · Big Data

Understanding Spark Executor Memory Management: On‑heap, Off‑heap, and Unified Approaches

This article explains Spark's executor memory architecture, covering on‑heap and off‑heap allocation, static versus unified memory managers, storage and execution memory handling, RDD persistence, eviction policies, and the role of Tungsten's page‑based management in optimizing performance.

Big DataExecutorMemory Management

0 likes · 23 min read

Understanding Spark Executor Memory Management: On‑heap, Off‑heap, and Unified Approaches