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试图建立伪dist hadoop集群感到沮丧(getting frustrated trying to set up pseudo-dist hadoop cluster)

 我花了8个小时试图建立我的Hadoop集群，说实话，它变得筋疲力尽。 它不仅仅是今天。 确切地说，它已经过了几个星期。 我已经尝试过在网上获得的20-30种不同的教程，每次，我都会遇到错误......比如SSH连接问题或JVM失败或PATH问题或最糟糕的（WARN util.NativeCodeLoader：Unable）为您的平台加载native-hadoop库...使用适用的builtin-java类...等等。 所有这些导致我重置我的VMplayer并一遍又一遍地重新安装Ubuntu。  
 我正在努力获得Hadoop开发人员认证，我需要从MapReduce和Hadoop到生态系统（Hive，PIG等）的所有经验。 我现在唯一能做的就是设置集群进行练习。 我已经没有选择了  
 我的问题是，有什么方法（更容易，但任何人会做）安装Hadoop MapReduce版本2（YARN）而不拔我的头发？ 我真的想要一些已被证明是一致的并且已经为多人工作的东西。  
 在Ubuntu上64位  
 编辑：提前感谢大家 

I have spend the past 8 hours trying to set up my Hadoop cluster, and to be honest, its getting exhausting. Its not just today. Its been a few weeks to be exact. I have tried probably 20-30 different tutorials i acquired on the web, and each time, i get errors towards the end...like SSH connection issues or JVM failure or PATH issues or the worst of all (WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable) ...and many more. All that leading me to reset my VMplayer and reinstall Ubuntu over and over again. 
I am working towards the Hadoop Developer certification, and i need hands on experience on everything from MapReduce & Hadoop to the Eco-System(Hive, PIG, etc). The only thing in my way right now is setting up the cluster for practice. I have run out of options 
My question is is there any way(easier the better, but any will do) to install Hadoop MapReduce Version 2(YARN) without pulling my hair out? I would really like something that has been shown to be consistent and has worked for multiple people. 
64 bit on Ubuntu 
EDIT: Thanks to everyone in advance

原文：https://stackoverflow.com/questions/22644838

更新时间：2022-02-23 06:02

最满意答案

 这是我的解决方案。 此版本仅适用于矩形。 Item ShaderEffectSource有助于创建这样的源矩形。  
   
import QtQuick 2.3
import QtQuick.Window 2.2
import QtGraphicalEffects 1.0

Window {
    visible: true
    width: 600
    height:600

    Image {
        id: image_bug

        anchors.fill: parent
        source: "images/Original_bug.png"
    }

    ShaderEffectSource {
        id: effectSource

        sourceItem: image_bug
        anchors.centerIn: image_bug
        width: 400
        height: 400
        sourceRect: Qt.rect(x,y, width, height)
    }

    FastBlur{
        id: blur
        anchors.fill: effectSource

        source: effectSource
        radius: 100
    }
}
 
 如果您需要其他形状，我认为您可能需要应用蒙版着色器，首先剪切相关部分然后应用模糊。 

Here is my solution. This version is just applicable to Rectangles. The Item ShaderEffectSource helps with creating such a source rectangle. 
 
import QtQuick 2.3
import QtQuick.Window 2.2
import QtGraphicalEffects 1.0

Window {
    visible: true
    width: 600
    height:600

    Image {
        id: image_bug

        anchors.fill: parent
        source: "images/Original_bug.png"
    }

    ShaderEffectSource {
        id: effectSource

        sourceItem: image_bug
        anchors.centerIn: image_bug
        width: 400
        height: 400
        sourceRect: Qt.rect(x,y, width, height)
    }

    FastBlur{
        id: blur
        anchors.fill: effectSource

        source: effectSource
        radius: 100
    }
}
 
If you need other shapes, I think you might need to apply a mask-shader, cutting out the relevant parts first and then apply the blur.

试图建立伪dist hadoop集群感到沮丧(getting frustrated trying to set up pseudo-dist hadoop cluster)

最满意答案

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