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使用Python运行Storm MultiLang时出错(Error while running Storm MultiLang using Python)

 我正在接受Udacity的Apache Storm课程。 使用的风暴版本是0.9.3  
 其中一个练习是运行包含用Python编写的螺栓的拓扑。 这里简要介绍以下步骤。 出于本练习的目的，我的源目录是src ，我的包是udacity.storm  
 
  在udacity/storm下创建名为resources/目录。 在那里放置两个python脚本 - splitsentence.py和storm.py 。  
  在包udacity.storm下创建一个udacity.storm螺栓。 SplitSentence bolt源自ShellBolt并实现IRichBolt接口。  
  使用maven构建拓扑。 在此过程中还将resources/目录打包在JAR文件中。  
  使用命令storm jar target/mytopology.jar udacity.storm.MyTopology将拓扑提交到storm。  
 
 拓扑加载并立即死亡，我在控制台上看到以下错误  
 
  风暴客户端只能在发布版本中运行。 您似乎试图通过结帐Storm的源代码来运行客户端。  
 
 我看了一下storm.py代码，发现如果执行python脚本的目录中没有lib/目录，就会发生这种情况。 在输入一些调试语句后，我发现python脚本从以下位置运行：  
 
  的/ tmp / 06380be9-d413-4ae5-B387-fafe3acf3e65 /主管/ stormdist /鸣叫-字计数1-1449502750  
 
 我导航到这个目录，发现lib/文件夹不存在。  
 Storm Multilang页面没有提供有助于初学者调试所面临问题的大量信息。  
 非常感谢任何帮助解决这个问题。 

I am following a course work on Apache Storm from Udacity. The version of storm being used is 0.9.3 
One of the exercises there is to run a topology which contains a bolt written in Python. Briefly here are the steps followed. For the purpose of this exercise my source directory is src and my package is udacity.storm 
 
 Create directory called resources/ under udacity/storm. Place two python scripts there - splitsentence.py and storm.py. 
 Create a bolt SplitSentence under the package udacity.storm. SplitSentence bolt derives from ShellBolt and implements the IRichBolt interface. 
 Build the topology using maven. During the process also package the resources/ directory within the JAR file. 
 Submit the topology to storm using the command storm jar target/mytopology.jar udacity.storm.MyTopology. 
 
The topology loads up and dies immediately and I see the following error on the console 
 
 The storm client can only be run from within a release. You appear to be trying to run the client from a checkout of Storm's source code. 
 
I took a look at the storm.py code and figured out that this would happen if the lib/ directory is not present in the directory from where the python script is executing. After putting in some debug statements I identified that the python script runs from the following location : 
 
 /tmp/06380be9-d413-4ae5-b387-fafe3acf3e65/supervisor/stormdist/tweet-word-count-1-1449502750 
 
I navigate to this directory and find that the lib/ folder is absent. 
The Storm Multilang page does not give much information that would be helpful for beginners to debug the problem being faced. 
Any help to solve this problem is greatly appreciated.

原文：https://stackoverflow.com/questions/34139661

更新时间：2022-10-15 12:10

最满意答案

 如何创建一个元素（容器），将3个向量封装为返回元素？  
 
  您遇到的问题是函数（如Mathemematicians想要）返回一个值，但这可以是任何值:)。  
 
 您可以使用将向量作为属性的类或结构 ：  
struct returnElement { // choose an adequate name
  std::vector<int> aOut, bOut, cOut;
};
 
 
 所以现在你的abc函数会返回returnElement struct 。 它可能看起来像这样：  
returnElement abc (const int n) {
    returnElement ret;  // creating vectors to store values (dynamic int arrays)
    for (int a = 9; a <= n - 2; a++) {
        for (int b = a + 1; b <= n - 1; b++) {
            for (int c = b + 1; c <= n; c++) {
                ret.aOut.push_back(a);
                ret.bOut.push_back(b);
                ret.cOut.push_back(c);
        }
    }
    return ret;
}

How about creating an element (container) which encapsulates your 3 vectors as a return element? 
 
 The problem you're having is that functions (like Mathemematicians want to) return one value, but this can be any value :). 
 
You could use a class or a struct which will has the vectors as attributes: 
struct returnElement { // choose an adequate name
  std::vector<int> aOut, bOut, cOut;
};
 
 
so now your abc function would return the returnElement struct. It could look something like this: 
returnElement abc (const int n) {
    returnElement ret;  // creating vectors to store values (dynamic int arrays)
    for (int a = 9; a <= n - 2; a++) {
        for (int b = a + 1; b <= n - 1; b++) {
            for (int c = b + 1; c <= n; c++) {
                ret.aOut.push_back(a);
                ret.bOut.push_back(b);
                ret.cOut.push_back(c);
        }
    }
    return ret;
}

使用Python运行Storm MultiLang时出错(Error while running Storm MultiLang using Python)

最满意答案

您可以使用将向量作为属性的类或结构：

You could use a class or a struct which will has the vectors as attributes:

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最新问答

使用Python运行Storm MultiLang时出错(Error while running Storm MultiLang using Python)

最满意答案

您可以使用将向量作为属性的类或结构 ：

You could use a class or a struct which will has the vectors as attributes:

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在单个排序中对多个向量进行排序调用C ++(Sorting multiple vectors in single sort call C++)[2023-05-11]

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最新问答

您可以使用将向量作为属性的类或结构：