{"id":44987,"date":"2025-06-21T18:20:56","date_gmt":"2025-06-21T10:20:56","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/44987.html"},"modified":"2025-06-21T18:20:56","modified_gmt":"2025-06-21T10:20:56","slug":"%e8%a5%bf%e7%94%b5%e5%88%86%e5%b8%83%e5%bc%8f%e8%ae%a1%e7%ae%97%e5%a4%a7%e5%ae%9e%e9%aa%8c-%e5%9c%a8%e8%85%be%e8%ae%af%e4%ba%91%e8%bd%bb%e9%87%8f%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8a","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/44987.html","title":{"rendered":"\u897f\u7535\u5206\u5e03\u5f0f\u8ba1\u7b97\u5927\u5b9e\u9a8c\u2014\u2014\u5728\u817e\u8baf\u4e91\u8f7b\u91cf\u670d\u52a1\u5668\u4e0a\u642d\u5efa\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883\uff1a\u4eceMPI\u5230Spark\u5168\u6808\u6307\u5357"},"content":{"rendered":"<p>\u672c\u6587\u5c06\u8be6\u7ec6\u8bb0\u5f55\u5982\u4f55\u5728\u817e\u8baf\u4e91\u8f7b\u91cf\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u5b8c\u6574\u7684\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883&#xff0c;\u6db5\u76d6MPI\u3001Hadoop\u548cSpark\u4e09\u5927\u6846\u67b6\u7684\u5b89\u88c5\u90e8\u7f72\u3001\u73af\u5883\u914d\u7f6e\u53ca\u5b9e\u9a8c\u8fd0\u884c\u5168\u8fc7\u7a0b\u3002\u65e0\u8bba\u4f60\u662f\u5206\u5e03\u5f0f\u8ba1\u7b97\u521d\u5b66\u8005\u8fd8\u662f\u9700\u8981\u5feb\u901f\u642d\u5efa\u5b9e\u9a8c\u73af\u5883\u7684\u7814\u7a76\u4eba\u5458&#xff0c;\u8fd9\u7bc7\u6307\u5357\u90fd\u80fd\u4e3a\u4f60\u63d0\u4f9b\u6e05\u6670\u7684\u5b9e\u73b0\u8def\u5f84\u3002<\/p>\n<h3>\u73af\u5883\u6982\u89c8\u4e0e\u51c6\u5907<\/h3>\n<p>\u670d\u52a1\u5668\u914d\u7f6e&#xff1a;<\/p>\n<ul>\n<li>\u578b\u53f7&#xff1a;\u817e\u8baf\u4e91\u8f7b\u91cf\u5e94\u7528\u670d\u52a1\u5668<\/li>\n<li>\u89c4\u683c&#xff1a;2\u68384GB&#xff08;72\u5143\u4e00\u4e2a\u6708&#xff09;<\/li>\n<li>\u7cfb\u7edf&#xff1a;Ubuntu 20.04 LTS<\/li>\n<li>\u5b58\u50a8&#xff1a;60GB SSD\u4e91\u786c\u76d8<\/li>\n<\/ul>\n<p>\u6280\u672f\u6808&#xff1a;<\/p>\n<ul>\n<li>MPI&#xff1a;OpenMPI 4.1.1<\/li>\n<li>Hadoop&#xff1a;3.3.6<\/li>\n<li>Spark&#xff1a;3.3.2<\/li>\n<li>Python&#xff1a;Anaconda3 (2024.10)<\/li>\n<\/ul>\n<h3>\u4e00\u3001\u57fa\u7840\u73af\u5883\u914d\u7f6e<\/h3>\n<h4>1. MPI\u73af\u5883\u5b89\u88c5&#xff08;OpenMPI&#xff09;<\/h4>\n<p><span class=\"token comment\"># \u5b89\u88c5OpenMPI\u53ca\u76f8\u5173\u4f9d\u8d56<\/span><br \/>\n<span class=\"token function\">sudo<\/span> <span class=\"token function\">apt<\/span> update<br \/>\n<span class=\"token function\">sudo<\/span> <span class=\"token function\">apt<\/span> <span class=\"token function\">install<\/span> <span class=\"token parameter variable\">-y<\/span> openmpi-bin openmpi-common libopenmpi-dev<\/p>\n<p><span class=\"token comment\"># \u9a8c\u8bc1\u5b89\u88c5<\/span><br \/>\nmpirun <span class=\"token parameter variable\">&#8211;version<\/span><\/p>\n<p>\u8f93\u51fa\u793a\u4f8b&#xff1a;<\/p>\n<p>mpirun (Open MPI) 4.1.1<br \/>\nReport bugs to http:\/\/www.open-mpi.org\/community\/help\/<\/p>\n<h4>2. Python\u73af\u5883\u914d\u7f6e&#xff08;Anaconda&#xff09;<\/h4>\n<p><span class=\"token comment\"># \u4e0b\u8f7d\u6700\u65b0\u7248Anaconda<\/span><br \/>\n<span class=\"token function\">wget<\/span> <span class=\"token parameter variable\">-c<\/span> https:\/\/repo.anaconda.com\/archive\/Anaconda3-2024.10-1-Linux-x86_64.sh<\/p>\n<p><span class=\"token comment\"># \u5b89\u88c5&#xff08;\u6ce8\u610f\u4fee\u6539\u5b89\u88c5\u8def\u5f84&#xff09;<\/span><br \/>\n<span class=\"token function\">bash<\/span> Anaconda3-2024.10-1-Linux-x86_64.sh<\/p>\n<p><span class=\"token comment\"># \u5b89\u88c5\u9009\u9879&#xff1a;<\/span><br \/>\n<span class=\"token comment\"># 1. \u63a5\u53d7\u8bb8\u53ef\u534f\u8bae (yes)<\/span><br \/>\n<span class=\"token comment\"># 2. \u81ea\u5b9a\u4e49\u5b89\u88c5\u8def\u5f84&#xff08;\u5982&#xff1a;\/opt\/anaconda3&#xff09;<\/span><br \/>\n<span class=\"token comment\"># 3. \u81ea\u52a8\u521d\u59cb\u5316\u73af\u5883\u53d8\u91cf (yes)<\/span><\/p>\n<p><span class=\"token comment\"># \u6fc0\u6d3b\u73af\u5883<\/span><br \/>\n<span class=\"token builtin class-name\">source<\/span> ~\/.bashrc<br \/>\nconda <span class=\"token parameter variable\">&#8211;version<\/span><\/p>\n<h3>\u4e8c\u3001Hadoop\u96c6\u7fa4\u90e8\u7f72<\/h3>\n<h4>1. \u83b7\u53d6\u5e76\u89e3\u538b\u5b9e\u9a8c\u5305&#xff08;\u8bfe\u7a0b\u8d44\u6599\u4e2d\u4e0b\u8f7d&#xff09;<\/h4>\n<p><span class=\"token function\">unzip<\/span> hadoop-sandbox.zip <span class=\"token parameter variable\">-d<\/span> ~\/hadoop-sandbox<br \/>\n<span class=\"token function\">unzip<\/span> spark-install.zip <span class=\"token parameter variable\">-d<\/span> ~\/spark-install<\/p>\n<h4>2. \u5173\u952e\u76ee\u5f55\u6620\u5c04\u914d\u7f6e<\/h4>\n<p>\u4fee\u6539docker-compose.yaml&#xff1a;<\/p>\n<p><span class=\"token key atrule\">services<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">clientnode<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">volumes<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token comment\"># \u4fee\u6539\u4e3a\u5bbf\u4e3b\u673a\u5b9e\u9645\u8def\u5f84<\/span><br \/>\n      <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token string\">&#034;\/home\/ubuntu\/hadoop-sandbox\/sandbox-data:\/home\/sandbox&#034;<\/span><\/p>\n<p><span class=\"token comment\"># \u5220\u9664volumes\u6bb5\u4e2d\u7684clientnodehome\u58f0\u660e<\/span><\/p>\n<h4>3. \u521b\u5efa\u672c\u5730\u6570\u636e\u76ee\u5f55<\/h4>\n<p><span class=\"token function\">mkdir<\/span> <span class=\"token parameter variable\">-p<\/span> ~\/hadoop-sandbox\/sandbox-data<\/p>\n<h4>4. \u542f\u52a8Hadoop\u96c6\u7fa4<\/h4>\n<p><span class=\"token builtin class-name\">cd<\/span> ~\/hadoop-sandbox<br \/>\n<span class=\"token function\">docker-compose<\/span> up <span class=\"token parameter variable\">-d<\/span><\/p>\n<h4>5. \u9a8c\u8bc1\u5bb9\u5668\u72b6\u6001<\/h4>\n<p><span class=\"token function\">docker<\/span> <span class=\"token function\">ps<\/span><\/p>\n<p>\u9884\u671f\u8f93\u51fa&#xff1a;<\/p>\n<p>CONTAINER ID  IMAGE                 PORTS                  NAMES<br \/>\na1b2c3d4e5f6  hadoop-sandbox:latest 0.0.0.0:2222-&gt;22\/tcp   clientnode<br \/>\n9876fedcba98  hadoop:3.3.6          0.0.0.0:9870-&gt;9870\/tcp namenode<br \/>\n&#8230;<\/p>\n<h4>6. \u8bbf\u95eeHadoop\u5bb9\u5668<\/h4>\n<p><span class=\"token function\">ssh<\/span> <span class=\"token parameter variable\">-p<\/span> <span class=\"token number\">2222<\/span> sandbox&#064;localhost  <span class=\"token comment\"># \u5bc6\u7801&#xff1a;sandbox<\/span><\/p>\n<h3>\u4e09\u3001Spark\u73af\u5883\u90e8\u7f72<\/h3>\n<h4>1. \u6784\u5efaSpark\u955c\u50cf<\/h4>\n<p><span class=\"token builtin class-name\">cd<\/span> ~\/spark-install<br \/>\n<span class=\"token function\">docker<\/span> build <span class=\"token parameter variable\">-t<\/span> packet23\/hadoop-client:latest <span class=\"token builtin class-name\">.<\/span><\/p>\n<h4>2. \u91cd\u542fHadoop\u96c6\u7fa4<\/h4>\n<p><span class=\"token builtin class-name\">cd<\/span> ~\/hadoop-sandbox<br \/>\n<span class=\"token function\">docker-compose<\/span> down<br \/>\n<span class=\"token function\">docker-compose<\/span> up <span class=\"token parameter variable\">-d<\/span><\/p>\n<h3>\u56db\u3001\u8bbf\u95eeHadoop Web UI<\/h3>\n<p>\u7531\u4e8e\u4e91\u670d\u52a1\u5668\u9650\u5236&#xff0c;\u9700\u5efa\u7acbSSH\u96a7\u9053\u8bbf\u95eeWeb UI&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u5efa\u7acb\u672c\u5730\u5230\u670d\u52a1\u5668\u7684\u96a7\u9053<\/span><br \/>\n<span class=\"token function\">ssh<\/span> <span class=\"token parameter variable\">-L<\/span> <span class=\"token number\">9870<\/span>:localhost:9870 ubuntu&#064;<span class=\"token operator\">&lt;<\/span>your-server-ip<span class=\"token operator\">&gt;<\/span><\/p>\n<p>\u8bbf\u95ee http:\/\/localhost:9870 \u5373\u53ef\u67e5\u770bHDFS\u72b6\u6001&#xff1a;<\/p>\n<h3>\u4e94\u3001\u6587\u4ef6\u7cfb\u7edf\u64cd\u4f5c\u6307\u5357<\/h3>\n<h4>1. Hadoop Shell\u5e38\u7528\u547d\u4ee4<\/h4>\n<p><span class=\"token comment\"># \u5728sandbox\u5bb9\u5668\u5185\u6267\u884c<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-ls<\/span> \/             <span class=\"token comment\"># \u67e5\u770b\u6839\u76ee\u5f55<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-mkdir<\/span> \/test      <span class=\"token comment\"># \u521b\u5efa\u6d4b\u8bd5\u76ee\u5f55<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-put<\/span> data.txt \/test  <span class=\"token comment\"># \u4e0a\u4f20\u6587\u4ef6<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-cat<\/span> \/test\/data.txt <span class=\"token comment\"># \u67e5\u770b\u6587\u4ef6\u5185\u5bb9<\/span><\/p>\n<h4>2. \u76ee\u5f55\u6620\u5c04\u9a8c\u8bc1<\/h4>\n<p><span class=\"token comment\"># \u5728\u5bbf\u4e3b\u673a\u6dfb\u52a0\u6d4b\u8bd5\u6587\u4ef6<\/span><br \/>\n<span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#034;Hello Hadoop&#034;<\/span> <span class=\"token operator\">&gt;<\/span> ~\/hadoop-sandbox\/sandbox-data\/test.txt<\/p>\n<p><span class=\"token comment\"># \u5728sandbox\u5bb9\u5668\u5185\u9a8c\u8bc1<\/span><br \/>\n<span class=\"token function\">cat<\/span> ~\/test.txt  <span class=\"token comment\"># \u5e94\u663e\u793a&#034;Hello Hadoop&#034;<\/span><\/p>\n<h3>\u516d\u3001\u5b9e\u9a8c\u4ee3\u7801\u8fd0\u884c\u6307\u5357<\/h3>\n<h4>1. MPI\u7a0b\u5e8f\u8fd0\u884c&#xff08;\u5b9a\u79ef\u5206\u8ba1\u7b97&#xff09;<\/h4>\n<p><span class=\"token comment\"># mpi.py<\/span><br \/>\n<span class=\"token keyword\">from<\/span> mpi4py <span class=\"token keyword\">import<\/span> MPI<br \/>\n<span class=\"token keyword\">import<\/span> math<\/p>\n<p><span class=\"token keyword\">def<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> math<span class=\"token punctuation\">.<\/span>sin<span class=\"token punctuation\">(<\/span>x<span class=\"token operator\">*<\/span>x <span class=\"token operator\">&#043;<\/span> x<span class=\"token punctuation\">)<\/span><\/p>\n<p>comm <span class=\"token operator\">&#061;<\/span> MPI<span class=\"token punctuation\">.<\/span>COMM_WORLD<br \/>\nrank <span class=\"token operator\">&#061;<\/span> comm<span class=\"token punctuation\">.<\/span>Get_rank<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\nsize <span class=\"token operator\">&#061;<\/span> comm<span class=\"token punctuation\">.<\/span>Get_size<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>a<span class=\"token punctuation\">,<\/span> b <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1.0<\/span><br \/>\nn <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1000000<\/span><br \/>\nh <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#8211;<\/span> a<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> n<\/p>\n<p><span class=\"token comment\"># \u5404\u8fdb\u7a0b\u8ba1\u7b97\u5c40\u90e8\u79ef\u5206<\/span><br \/>\nstart <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">&#043;<\/span> rank <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#8211;<\/span> a<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> size<br \/>\nend <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">&#043;<\/span> <span class=\"token punctuation\">(<\/span>rank <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#8211;<\/span> a<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> size<br \/>\nlocal_integral <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>f<span class=\"token punctuation\">(<\/span>start<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#043;<\/span> f<span class=\"token punctuation\">(<\/span>end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token number\">2.0<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token operator\">\/<\/span>size<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    x <span class=\"token operator\">&#061;<\/span> start <span class=\"token operator\">&#043;<\/span> i <span class=\"token operator\">*<\/span> h<br \/>\n    local_integral <span class=\"token operator\">&#043;&#061;<\/span> f<span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span><\/p>\n<p>local_integral <span class=\"token operator\">*&#061;<\/span> h<\/p>\n<p><span class=\"token comment\"># \u6c47\u603b\u7ed3\u679c<\/span><br \/>\ntotal <span class=\"token operator\">&#061;<\/span> comm<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">reduce<\/span><span class=\"token punctuation\">(<\/span>local_integral<span class=\"token punctuation\">,<\/span> op<span class=\"token operator\">&#061;<\/span>MPI<span class=\"token punctuation\">.<\/span>SUM<span class=\"token punctuation\">,<\/span> root<span class=\"token operator\">&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> rank <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;Integral result: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>total<span class=\"token punctuation\">:<\/span><span class=\"token format-spec\">.10f<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8fd0\u884c\u547d\u4ee4&#xff1a;<\/p>\n<p><span class=\"token comment\"># \u5728\u5bbf\u4e3b\u673a\u8fd0\u884c<\/span><br \/>\nmpiexec &#8211;allow-run-as-root <span class=\"token parameter variable\">-n<\/span> <span class=\"token number\">4<\/span> python mpi.py<\/p>\n<h4>2. MapReduce\u7a0b\u5e8f\u8fd0\u884c&#xff08;\u5b66\u751f\u6210\u7ee9\u5206\u6790&#xff09;<\/h4>\n<p><span class=\"token comment\"># \u5728sandbox\u5bb9\u5668\u5185\u64cd\u4f5c<\/span><br \/>\n<span class=\"token builtin class-name\">cd<\/span> ~<br \/>\n<span class=\"token function\">mkdir<\/span> <span class=\"token parameter variable\">-p<\/span> code <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token builtin class-name\">cd<\/span> code<\/p>\n<p><span class=\"token comment\"># \u7f16\u8bd1Java\u7a0b\u5e8f<\/span><br \/>\njavac <span class=\"token parameter variable\">-cp<\/span> <span class=\"token variable\"><span class=\"token variable\">$(<\/span>hadoop classpath<span class=\"token variable\">)<\/span><\/span> RequiredCourseAverage.java<\/p>\n<p><span class=\"token comment\"># \u6253\u5305JAR<\/span><br \/>\njar cvf rca.jar RequiredCourseAverage*.class<\/p>\n<p><span class=\"token comment\"># \u63d0\u4ea4\u4f5c\u4e1a&#xff08;\u786e\u4fdd\u8f93\u5165\u8def\u5f84\u5b58\u5728&#xff09;<\/span><br \/>\nhadoop jar rca.jar RequiredCourseAverage \/input\/grades.txt \/output\/avg_results<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u7ed3\u679c<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-cat<\/span> \/output\/avg_results\/part-r-00000<\/p>\n<h4>3. Spark\u7a0b\u5e8f\u8fd0\u884c&#xff08;\u5206\u6570\u6bb5\u7edf\u8ba1&#xff09;<\/h4>\n<p><span class=\"token comment\"># spark\/count.py<\/span><br \/>\n<span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql <span class=\"token keyword\">import<\/span> SparkSession<br \/>\n<span class=\"token keyword\">from<\/span> pyspark<span class=\"token punctuation\">.<\/span>sql<span class=\"token punctuation\">.<\/span>functions <span class=\"token keyword\">import<\/span> <span class=\"token operator\">*<\/span><\/p>\n<p>spark <span class=\"token operator\">&#061;<\/span> SparkSession<span class=\"token punctuation\">.<\/span>builder<span class=\"token punctuation\">.<\/span>appName<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;ScoreSegmentAnalysis&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>getOrCreate<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u5b9a\u4e49\u6570\u636e\u7ed3\u6784<\/span><br \/>\nschema <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;class STRING, name STRING, subject STRING, course_type STRING, score DOUBLE&#034;<\/span><br \/>\ndf <span class=\"token operator\">&#061;<\/span> spark<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">.<\/span>csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hdfs:\/\/\/input\/grades.txt&#034;<\/span><span class=\"token punctuation\">,<\/span> schema<span class=\"token operator\">&#061;<\/span>schema<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u5904\u7406\u903b\u8f91<\/span><br \/>\nresult <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>df<span class=\"token punctuation\">.<\/span><span class=\"token builtin\">filter<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;course_type&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;\u5fc5\u4fee&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;class&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>agg<span class=\"token punctuation\">(<\/span>avg<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;score&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>alias<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>withColumn<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;segment&#034;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        when<span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">90<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;90-100&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">90<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;80-89&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">80<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;70-79&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>when<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">60<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;<\/span> <span class=\"token punctuation\">(<\/span>col<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;avg_score&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">70<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;60-69&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">.<\/span>otherwise<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;0-59&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>groupBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;class&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;segment&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>count<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>orderBy<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;class&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;segment&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u8f93\u51fa\u7ed3\u679c<\/span><br \/>\nresult<span class=\"token punctuation\">.<\/span>write<span class=\"token punctuation\">.<\/span>csv<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hdfs:\/\/\/output\/segment_analysis&#034;<\/span><span class=\"token punctuation\">,<\/span> header<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">,<\/span> mode<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;overwrite&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u8fd0\u884c\u547d\u4ee4&#xff1a;<\/p>\n<p>spark-submit spark\/count.py<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u7ed3\u679c&#xff08;\u4eceWeb UI\u83b7\u53d6\u5b9e\u9645\u8def\u5f84&#xff09;<\/span><br \/>\nhadoop fs <span class=\"token parameter variable\">-cat<\/span> \/output\/segment_analysis\/part-00000-*<\/p>\n<h3>\u4e03\u3001\u73af\u5883\u4f18\u5316\u6280\u5de7<\/h3>\n<h4>1. \u5bb9\u5668\u8d44\u6e90\u9650\u5236<\/h4>\n<p><span class=\"token comment\"># \u5728docker-compose.yaml\u4e2d\u6dfb\u52a0<\/span><br \/>\n<span class=\"token key atrule\">services<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">namenode<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">deploy<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token key atrule\">resources<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token key atrule\">limits<\/span><span class=\"token punctuation\">:<\/span><br \/>\n          <span class=\"token key atrule\">cpus<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;1.0&#039;<\/span><br \/>\n          <span class=\"token key atrule\">memory<\/span><span class=\"token punctuation\">:<\/span> 1024M<\/p>\n<h4>2. Hadoop\u6027\u80fd\u8c03\u4f18<\/h4>\n<p><span class=\"token comment\"># \u4fee\u6539hadoop-env.sh<\/span><br \/>\n<span class=\"token builtin class-name\">export<\/span> <span class=\"token assign-left variable\">HADOOP_HEAPSIZE_MAX<\/span><span class=\"token operator\">&#061;<\/span>512m<br \/>\n<span class=\"token builtin class-name\">export<\/span> <span class=\"token assign-left variable\">HADOOP_OPTS<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;-XX:&#043;UseG1GC&#034;<\/span><\/p>\n<h4>3. Spark\u914d\u7f6e\u4f18\u5316<\/h4>\n<p><span class=\"token comment\"># \u5728Spark\u4ee3\u7801\u4e2d\u914d\u7f6e<\/span><br \/>\nspark <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>SparkSession<span class=\"token punctuation\">.<\/span>builder<br \/>\n    <span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;spark.executor.memory&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;1g&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;spark.driver.memory&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;512m&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>config<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;spark.sql.shuffle.partitions&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;16&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">.<\/span>getOrCreate<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u516b\u3001\u5e38\u89c1\u95ee\u9898\u89e3\u51b3\u65b9\u6848<\/h3>\n<table>\n<tr>\u95ee\u9898\u73b0\u8c61\u89e3\u51b3\u65b9\u6848<\/tr>\n<tbody>\n<tr>\n<td>\u7aef\u53e3\u51b2\u7a81<\/td>\n<td>\u5bb9\u5668\u542f\u52a8\u5931\u8d25<\/td>\n<td>\u4fee\u6539docker-compose.yaml\u4e2d\u7684\u7aef\u53e3\u6620\u5c04<\/td>\n<\/tr>\n<tr>\n<td>\u6743\u9650\u4e0d\u8db3<\/td>\n<td>&#034;Permission denied&#034;\u9519\u8bef<\/td>\n<td>\u6dfb\u52a0&#8211;privileged\u6807\u5fd7\u6216\u914d\u7f6eSELinux<\/td>\n<\/tr>\n<tr>\n<td>HDFS\u7a7a\u95f4\u4e0d\u8db3<\/td>\n<td>&#034;No space left&#034;\u9519\u8bef<\/td>\n<td>hadoop fs -du -h \/ \u68c0\u67e5\u5e76\u6e05\u7406<\/td>\n<\/tr>\n<tr>\n<td>Spark\u63d0\u4ea4\u5931\u8d25<\/td>\n<td>\u7c7b\u8def\u5f84\u9519\u8bef<\/td>\n<td>\u4f7f\u7528&#8211;jars\u6307\u5b9a\u4f9d\u8d56\u5305<\/td>\n<\/tr>\n<tr>\n<td>MPI\u8fd0\u884c\u6162<\/td>\n<td>\u8de8\u8282\u70b9\u901a\u4fe1\u5ef6\u8fdf<\/td>\n<td>\u914d\u7f6e&#8211;mca btl_tcp_if_include eth0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u4e5d\u3001\u5b66\u4e60\u8d44\u6e90\u63a8\u8350<\/h3>\n<li>\n<p>\u5b98\u65b9\u6587\u6863&#xff1a;<\/p>\n<ul>\n<li>OpenMPI Documentation<\/li>\n<li>Hadoop\u5b98\u65b9\u6307\u5357<\/li>\n<li>Spark\u7f16\u7a0b\u624b\u518c<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e66\u7c4d\u63a8\u8350&#xff1a;<\/p>\n<ul>\n<li>\u300aHadoop\u6743\u5a01\u6307\u5357\u300b<\/li>\n<li>\u300aSpark\u5feb\u901f\u5927\u6570\u636e\u5206\u6790\u300b<\/li>\n<li>\u300aMPI\u5e76\u884c\u7a0b\u5e8f\u8bbe\u8ba1\u5b9e\u8df5\u300b<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5728\u7ebf\u8bfe\u7a0b&#xff1a;<\/p>\n<ul>\n<li>Coursera: Hadoop Platform and Application Framework<\/li>\n<li>edX: Introduction to Apache Spark<\/li>\n<\/ul>\n<\/li>\n<h3>\u7ed3\u8bed<\/h3>\n<p>\u901a\u8fc7\u672c\u6587\u7684\u6307\u5bfc&#xff0c;\u4f60\u5e94\u8be5\u5df2\u7ecf\u6210\u529f\u5728\u817e\u8baf\u4e91\u8f7b\u91cf\u670d\u52a1\u5668\u4e0a\u642d\u5efa\u4e86\u5b8c\u6574\u7684\u5206\u5e03\u5f0f\u8ba1\u7b97\u73af\u5883\u3002\u8fd9\u79cd\u73af\u5883\u4e0d\u4ec5\u9002\u7528\u4e8e\u5b66\u4e60\u5b9e\u9a8c&#xff0c;\u4e5f\u53ef\u4f5c\u4e3a\u5c0f\u578b\u7814\u7a76\u9879\u76ee\u7684\u5f00\u53d1\u73af\u5883\u3002\u914d\u7f6e\u73af\u5883\u53ea\u662f\u5f00\u59cb&#xff0c;\u771f\u6b63\u7684\u4ef7\u503c\u5728\u4e8e&#xff1a;<\/p>\n<li>\u7406\u89e3\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u67b6\u6784\u8bbe\u8ba1<\/li>\n<li>\u638c\u63e1\u8de8\u6846\u67b6\u7684\u7f16\u7a0b\u8303\u5f0f<\/li>\n<li>\u57f9\u517b\u89e3\u51b3\u5b9e\u9645\u95ee\u9898\u7684\u80fd\u529b<\/li>\n<li>\u79ef\u7d2f\u6027\u80fd\u8c03\u4f18\u7684\u7ecf\u9a8c<\/li>\n<p>\u4e0b\u4e00\u6b65\u5efa\u8bae&#xff1a;<\/p>\n<li>\u5c1d\u8bd5\u5728\u73af\u5883\u4e2d\u8fd0\u884c\u66f4\u590d\u6742\u7684\u8ba1\u7b97\u4efb\u52a1<\/li>\n<li>\u63a2\u7d22\u5bb9\u5668\u7f16\u6392\u6280\u672f&#xff08;\u5982Kubernetes&#xff09;\u7ba1\u7406\u5206\u5e03\u5f0f\u5e94\u7528<\/li>\n<li>\u5b9e\u73b0\u8de8\u6846\u67b6\u7684\u5de5\u4f5c\u6d41&#xff08;\u5982Hadoop\u9884\u5904\u7406&#043;Spark\u5206\u6790&#xff09;<\/li>\n<li>\u6dfb\u52a0\u76d1\u63a7\u7cfb\u7edf&#xff08;Prometheus&#043;Grafana&#xff09;\u53ef\u89c6\u5316\u96c6\u7fa4\u72b6\u6001<\/li>\n<p>\u7ecf\u9a8c\u5206\u4eab&#xff1a;\u5728\u914d\u7f6e\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\u65f6&#xff0c;\u5584\u7528docker 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