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Guidelines for Setting Per-Task Memory Limits on the BDA thru Cloudera Manager (Doc ID 1554531.1)

Last updated on OCTOBER 14, 2019

Applies to:

Big Data Appliance Integrated Software - Version 2.0.1 and later
Linux x86-64

Purpose

The document provides guidelines for determining a balance of increasing map and / or reduce slots without exceeding the recommended memory on an Oracle Big Data Appliance (BDA) cluster.

Details

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In this Document
Purpose
Details
 Setting the per-Task Maximum JVM Memory
 Guidelines for Setting per-Task Memory Limits in Mammoth 2.0.1 and 2.1.* on M2 X4270 BDA Servers
 Guidelines for Setting per-Task Memory Limits in Mammoth 2.2.*/2.3.1/2.4.0 on M2 X4270 BDA Servers
 Guidelines for Setting per-Task Memory Limits in Mammoth 2.2.*/2.3.1/2.4.0 on X3-2 BDA Servers and in Mammoth 2.3.1/2.4.0 on X4-2 BDA Servers
 How to Figure out the Total Map and Reduce Tasks for a Cluster
 How to Increase or Decrease Map and Reduce Tasks in Sun Fire X4270 M2-Based Racks
 How to Increase or Decrease Map and Reduce Tasks in X3-2/X4-2 BDA Servers
 Guidelines for Changing the Number of Map/Reduce Slots if the BDA Server Memory is Increased

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