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  • hadoop内存分配方案

    Configuration File

      Configuration Setting Value Calculation        8G VM (4G For MR)   
    yarn-site.xml yarn.nodemanager.resource.memory-mb = containers * RAM-per-container 4096
    yarn-site.xml yarn.scheduler.minimum-allocation-mb = RAM-per-container 1024
    yarn-site.xml yarn.scheduler.maximum-allocation-mb = containers * RAM-per-container 4096
    mapred-site.xml mapreduce.map.memory.mb = RAM-per-container 1024
    mapred-site.xml         mapreduce.reduce.memory.mb = 2 * RAM-per-container 2048
    mapred-site.xml mapreduce.map.java.opts = 0.8 * RAM-per-container 819
    mapred-site.xml mapreduce.reduce.java.opts = 0.8 * 2 * RAM-per-container 1638
    yarn-site.xml (check) yarn.app.mapreduce.am.resource.mb = 2 * RAM-per-container 2048
    yarn-site.xml (check) yarn.app.mapreduce.am.command-opts = 0.8 * 2 * RAM-per-container 1638
    tez-site.xml  
    tez.am.resource.memory.mb  
    = RAM-per-container
    1024
    tez-site.xml  
    tez.am.java.opts  
    = 0.8 * RAM-per-container
    819
    tez-site.xml  
    hive.tez.container.size  
    = RAM-per-container
    1024
    tez-site.xml  
    hive.tez.java.opts  
    = 0.8 * RAM-per-container
    819
    在尝试学习新的语言之前先理解这门语言的设计原理能够让你在探索这门新语言时保持一个清醒而且开发的状态。
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  • 原文地址:https://www.cnblogs.com/jackchen001/p/6404897.html
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