{"id":26904,"date":"2025-04-19T17:31:58","date_gmt":"2025-04-19T09:31:58","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/26904.html"},"modified":"2025-04-19T17:31:58","modified_gmt":"2025-04-19T09:31:58","slug":"%e6%9c%80%e6%96%b0%e7%89%88hadoop-3-4-0%e9%9b%86%e7%be%a4%e5%ae%89%e8%a3%85%e5%92%8c%e9%85%8d%e7%bd%ae%ef%bc%88%e7%9b%ae%e5%89%8d%e8%ae%ba%e5%9d%9b%e7%9a%84%e9%83%bd%e6%98%af%e8%80%81%e5%8f%a4","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/26904.html","title":{"rendered":"\u6700\u65b0\u7248hadoop-3.4.0\u96c6\u7fa4\u5b89\u88c5\u548c\u914d\u7f6e\uff08\u76ee\u524d\u8bba\u575b\u7684\u90fd\u662f\u8001\u53e4\u8463\u4e86\uff0c\u770b\u6211\u7684\u51c6\u6ca1\u9519\uff01\uff01\uff01\uff09\u8fd9\u91cc\u4ee5\u4e09\u53f0\u670d\u52a1\u5668\u4e3a\u4f8b"},"content":{"rendered":"<p>\u4e00.\u5728ali-nginx-vm\u914d\u7f6e\u514d\u5bc6\u767b\u5f55&#xff0c;ali-nginx-vm\u2013&gt;Redis\u96c6\u7fa4\u4e09\u4e2a\u670d\u52a1\u5668\u65b9\u5411\u53ef\u514d\u5bc6&#xff0c;\u4e09\u53f0\u670d\u52a1\u5668\u4e92\u76f8\u5207\u6362\u53ef\u514d\u5bc6&#xff08;\u6b65\u9aa4\u76f8\u540c\u4e0d\u505a\u8d58\u8ff0&#xff09;\u53cd\u8fc7\u6765\u672a\u914d\u7f6e<\/p>\n<p>1.\u5728ali-nginx-vm\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4<\/p>\n<p>ssh-keygen -t rsa<\/p>\n<p>2.\u53cc\u51fb\u4e24\u6b21\u56de\u8f66\u751f\u6210\u516c\u94a5 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093153-68036d89c9eb9.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>3.\u5206\u522b\u53d1\u9001\u5230\u5982\u4e0b\u4e09\u53f0\u673a\u5668&#xff0c;\u7528\u5982\u4e0b\u547d\u4ee4<\/p>\n<p>ssh-copy-id root&#064;172.16.0.226<\/p>\n<p>4.\u4f9d\u6b21\u53d1\u9001\u8f93\u5165\u5bc6\u7801&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093154-68036d8a01e40.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>5.\u6d4b\u8bd5\u514d\u5bc6\u767b\u5f55\u6210\u529f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093154-68036d8a4926b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u53ef\u4ee5\u7565\u8fc7&#xff0c;\u5c06\u6240\u9700\u8981\u7684\u96c6\u7fa4\u670d\u52a1\u5668\u914d\u7f6e\u514d\u5bc6\u5373\u53ef<\/p>\n<p>6.\u4e09\u53f0\u670d\u52a1\u5668\u914d\u7f6ejdk&#xff0c;\u4f7f\u7528scp\u547d\u4ee4\u5c06ali-business-vm1\u670d\u52a1\u5668\u4e0a\u7684jdkrpm\u6587\u4ef6\u5206\u522b\u590d\u5236\u5230\u5bf9\u5e94\u4e09\u53f0\u670d\u52a1\u5668&#xff0c;\u4f5c\u4e3ahadoop\u7684Java\u73af\u5883<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093154-68036d8a6d677.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>7.\u5207\u6362\u670d\u52a1\u5668\u67e5\u770b\u590d\u5236\u6210\u529f <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8b00925.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>8.\u5728\u4e09\u53f0\u670d\u52a1\u5668\u5206\u522b\u89e3\u538b&#xff08;\u5176\u4f59\u4e24\u53f0\u7c7b\u4f3c\u4e0d\u505a\u8d58\u8ff0&#xff09;&#xff1a;<\/p>\n<p>\u547d\u4ee4&#xff1a;<\/p>\n<p> rpm -ivh jdk-8u421-linux-x64.rpm  #\u9ed8\u8ba4\u89e3\u538b\u5230\/usr\/java\u76ee\u5f55<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8b266cc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>9.\u4fee\u6539\/etc\/profile\u6587\u4ef6\u914d\u7f6e\u73af\u5883\u53d8\u91cf&#xff1a;<\/p>\n<p>export JAVA_HOME&#061;\/usr\/java\/jdk1.8.0-x64<br \/>\nexport PATH&#061;$JAVA_HOME\/bin:$PATH<\/p>\n<p>10.\u4f7f\u53d8\u91cf\u751f\u6548<\/p>\n<p>source \/etc\/profile<\/p>\n<p>\u5e76\u4f7f\u7528<\/p>\n<p>java  -version<\/p>\n<p>\u67e5\u770b\u914d\u7f6e\u6210\u529f&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8b51520.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>11.\u5728\u4e3b\u8282\u70b9vm1\u4e0b\u8f7dhadooptar\u5305<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8b769bd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 12.\u914d\u7f6e\u4e3b\u673a\u6620\u5c04<\/p>\n<p>vim  \/etc\/hosts<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8b96368.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>13.\u5206\u522b\u590d\u5236\u5230\u5176\u4f59\u4e24\u53f0\u670d\u52a1\u5668\u5e76\u68c0\u9a8c\u6210\u529f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8bb9cfc.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 14.\u5728\u4e3b\u8282\u70b9\u6839\u76ee\u5f55\u521b\u5efahadoop\u76ee\u5f55<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093155-68036d8be2ec4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>15&#xff0c;\u5c06hadoop\u89e3\u538b\u5230hadoop\u76ee\u5f55\u4e4b\u4e0b&#xff1a;<\/p>\n<p>tar -zxvf  hadoop-3.4.0.tar.gz  -C \/hadoop<\/p>\n<p>16.\u8fdb\u5165hadoop\u76ee\u5f55\u67e5\u770b\u662f\u5426\u89e3\u538b\u6210\u529f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8c18256.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 17.\u5728\u4e3b\u8282\u70b9\u4e0a\u7f16\u8f91Hadoop\u914d\u7f6e\u6587\u4ef6&#xff08;\/hadoop\/hadoop-3.4.0\/etc\/hadoop\/&#xff09;&#xff1a;<\/p>\n<ul>\n<li>hadoop-env.sh&#xff1a;\u8bbe\u7f6eJAVA_HOME\u548c\u5176\u4ed6\u73af\u5883\u53d8\u91cf\u3002<\/li>\n<li>core-site.xml&#xff1a;\u914d\u7f6e\u6587\u4ef6\u7cfb\u7edf\u7684\u9ed8\u8ba4FS\u548cIO\u8bbe\u7f6e\u3002<\/li>\n<li>hdfs-site.xml&#xff1a;\u914d\u7f6eHDFS\u7684\u526f\u672c\u7b56\u7565\u548c\u6570\u636e\u5b58\u50a8\u3002<\/li>\n<li>mapred-site.xml&#xff1a;\u914d\u7f6eMapReduce\u4f5c\u4e1a\u7684\u8fd0\u884c\u3002<\/li>\n<li>yarn-site.xml&#xff1a;\u914d\u7f6eYARN\u7684\u8d44\u6e90\u7ba1\u7406\u3002<\/li>\n<li>workers&#xff08;\u8f83\u4f4e\u7248\u672c\u662fslaves&#xff09;&#xff1a;\u5217\u51fa\u6240\u6709\u4ece\u8282\u70b9\u7684IP\u5730\u5740\u6216\u4e3b\u673a\u540d\u3002<\/li>\n<\/ul>\n<p>18.\u5404\u6587\u4ef6\u914d\u7f6e\u4fe1\u606f\u5982\u4e0b&#xff08;\u67d0\u4e9b\u914d\u7f6e\u4e0d\u662f\u5fc5\u987b\u7684&#xff0c;\u53ef\u4ee5\u4f9d\u636e\u4e2a\u4eba\u4f5c\u4e1a\u60c5\u51b5\u589e\u5220\u76f8\u5173\u914d\u7f6e&#xff09;&#xff1a;<\/p>\n<p>hadoo-env.sh<\/p>\n<p>\u52a0\u5165\u4e00\u884c &#xff1a;export JAVA_HOME&#061;\/usr\/java\/jdk1.8.0-x64   #\u4e3aJava\u7684\u73af\u5883\u8def\u5f84&#xff08;\u6362\u6210\u81ea\u5df1\u7684&#xff09;<\/p>\n<p>core-site.xml<\/p>\n<p>&lt;configuration&gt;<br \/>\n &lt;property&gt;<br \/>\n    &lt;name&gt;fs.defaultFS&lt;\/name&gt;<br \/>\n    &lt;value&gt;hdfs:\/\/ali-kafka-vm1:9000&lt;\/value&gt;  #\/\/\u540e\u9762\u7684\u4e3b\u673a\u540d\u7aef\u53e3\u53ef\u81ea\u5b9a\u4e49<br \/>\n  &lt;\/property&gt;<br \/>\n  &lt;property&gt;<br \/>\n    &lt;name&gt;hadoop.tmp.dir&lt;\/name&gt;<br \/>\n    &lt;value&gt;\/hadoop\/tmp&lt;\/value&gt;    #\u4e34\u65f6\u6587\u4ef6\u76ee\u5f55\u53ef\u81ea\u5b9a\u4e49<br \/>\n  &lt;\/property&gt;<br \/>\n&lt;\/configuration&gt;<\/p>\n<p>hdfs-site.xml<\/p>\n<p>&lt;configuration&gt;<br \/>\n  &lt;property&gt;<br \/>\n    &lt;name&gt;dfs.replication&lt;\/name&gt;<br \/>\n    &lt;value&gt;2&lt;\/value&gt;<br \/>\n  &lt;\/property&gt;<br \/>\n  &lt;property&gt;<br \/>\n    &lt;name&gt;dfs.namenode.name.dir&lt;\/name&gt;<br \/>\n    &lt;value&gt;file:\/hadoop\/hdfs\/namenode&lt;\/value&gt;    #\u8bbe\u7f6eNameNode\u5b58\u50a8\u6587\u4ef6\u7cfb\u7edf\u955c\u50cf\u7684\u8def\u5f84\u3002<br \/>\n  &lt;\/property&gt;<br \/>\n  &lt;property&gt;<br \/>\n    &lt;name&gt;dfs.datanode.data.dir&lt;\/name&gt;<br \/>\n    &lt;value&gt;file:\/hadoop\/hdfs\/datanode&lt;\/value&gt;       #\u8bbe\u7f6eDataNode\u5b58\u50a8\u6570\u636e\u5757\u7684\u8def\u5f84\u3002<br \/>\n  &lt;\/property&gt;<br \/>\n&lt;\/configuration&gt;<\/p>\n<p>mapred-site.xml<\/p>\n<p>&lt;configuration&gt;<br \/>\n &lt;property&gt;<br \/>\n    &lt;name&gt;mapreduce.framework.name&lt;\/name&gt;     #\u6307\u5b9aMapReduce\u4f5c\u4e1a\u8fd0\u884c\u5728YARN\u4e0a\u3002<br \/>\n    &lt;value&gt;yarn&lt;\/value&gt;<br \/>\n  &lt;\/property&gt;<br \/>\n  #\u4ee5\u4e0b\u914d\u7f6e\u7528\u4e8e\u5728\u4efb\u52a1\u6267\u884c\u8fc7\u7a0b\u4e2d\u5b9a\u4f4d Hadoop MapReduce \u76f8\u5173\u7684\u7c7b\u548c\u8d44\u6e90\u3002\u4f8b\u5982&#xff0c;\u5982\u679c\u4efb\u52a1\u9700\u8981\u5f15\u7528 Hadoop MapReduce \u7684\u5e93\u6216\u8005\u4f7f\u7528 Hadoop \u7684\u4e00\u4e9b\u811a\u672c&#xff0c;\u5b83\u4eec\u53ef\u4ee5\u901a\u8fc7 HADOOP_MAPRED_HOME \u73af\u5883\u53d8\u91cf\u6765\u627e\u5230\u6b63\u786e\u7684\u8def\u5f84\u3002<br \/>\n   &lt;property&gt;<br \/>\n        &lt;name&gt;yarn.app.mapreduce.am.env&lt;\/name&gt;<br \/>\n        &lt;value&gt;HADOOP_MAPRED_HOME&#061;\/hadoop\/hadoop-3.4.0&lt;\/value&gt;   #\u8bbe\u7f6e\u4e86 ApplicationMaster \u7684\u73af\u5883\u53d8\u91cf<br \/>\n    &lt;\/property&gt;<br \/>\n    &lt;property&gt;<br \/>\n        &lt;name&gt;mapreduce.map.env&lt;\/name&gt;<br \/>\n        &lt;value&gt;HADOOP_MAPRED_HOME&#061;\/hadoop\/hadoop-3.4.0&lt;\/value&gt;  #\u8bbe\u7f6e\u4e86 Map \u4efb\u52a1\u7684\u73af\u5883\u53d8\u91cf\u3002<br \/>\n    &lt;\/property&gt;<br \/>\n    &lt;property&gt;<br \/>\n        &lt;name&gt;mapreduce.reduce.env&lt;\/name&gt;<br \/>\n        &lt;value&gt;HADOOP_MAPRED_HOME&#061;\/hadoop\/hadoop-3.4.0&lt;\/value&gt;  #\u8bbe\u7f6e\u4e86 Reduce \u4efb\u52a1\u7684\u73af\u5883\u53d8\u91cf<br \/>\n    &lt;\/property&gt;<br \/>\n&lt;\/configuration&gt;<\/p>\n<p>yarn-site.xml<\/p>\n<p>&lt;configuration&gt;<br \/>\n  &lt;property&gt;<br \/>\n    &lt;name&gt;yarn.resourcemanager.hostname&lt;\/name&gt;<br \/>\n    &lt;value&gt;ali-kafka-vm1&lt;\/value&gt;                    #\u6307\u5b9aResourceManager\u7684\u4e3b\u673a\u540d\u6216IP\u5730\u5740<br \/>\n  &lt;\/property&gt;<br \/>\n   &lt;property&gt;<br \/>\n    &lt;name&gt;yarn.nodemanager.aux-services&lt;\/name&gt;     #\u8bbe\u7f6eNodeManager\u4e0a\u8fd0\u884c\u7684\u8f85\u52a9\u670d\u52a1<br \/>\n    &lt;value&gt;mapreduce_shuffle&lt;\/value&gt;<br \/>\n  &lt;\/property&gt;<br \/>\n&lt;\/configuration&gt;<\/p>\n<p>wokers<\/p>\n<p>ali-kafka-vm2       #\u5217\u51fa\u6240\u6709\u4ece\u8282\u70b9\u7684\u4e3b\u673a\u540d\u6216IP<br \/>\nali-kafka-vm3<\/p>\n<p>17.\u4f7f\u7528scp\u547d\u4ee4\u5c06hadoop\u76ee\u5f55\u590d\u5236\u5230\u5176\u4f59\u4e24\u53f0\u670d\u52a1\u5668<\/p>\n<p> scp -r \/hadoop root&#064;ali-kafka-vm3:\/hadoop<\/p>\n<li>\n<p>\u4e09\u53f0\u670d\u52a1\u5668\u5747\u4fee\u6539\/etc\/profile\u6dfb\u52a0hadoop\u73af\u5883\u53d8\u91cf\u5982\u4e0b&#xff0c;\u5e76source<\/p>\n<p> export HADOOP_HOME&#061;\/hadoop\/hadoop-3.4.0<br \/>\nexport PATH&#061;$PATH:$HADOOP_HOME\/bin:$HADOOP_HOME\/sbin<br \/>\nexport HDFS_NAMENODE_USER&#061;root<br \/>\nexport HDFS_DATANODE_USER&#061;root<br \/>\nexport HDFS_SECONDARYNAMENODE_USER&#061;root<br \/>\nexport YARN_RESOURCEMANAGER_USER&#061;root<br \/>\nexport YARN_NODEMANAGER_USER&#061;root\n <\/li>\n<li>\n<p>\u67e5\u770b\u662f\u5426\u914d\u7f6e\u6210\u529f&#xff08;\u5176\u4f59\u4e24\u8282\u70b9\u64cd\u4f5c\u76f8\u540c&#xff09;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8c4818d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<\/li>\n<li>\n<p>\u683c\u5f0f\u5316HDFS&#xff0c;\u5728\u4e3b\u8282\u70b9\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4<\/p>\n<\/li>\n<p>hdfs namenode -format<\/p>\n<p>\u683c\u5f0f\u5316\u6210\u529f<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8c6d519.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 21.\u5728\u4e3b\u8282\u70b9\u4e0a\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u542f\u52a8\u6240\u6709\u5b88\u62a4\u8fdb\u7a0b&#xff1a;<\/p>\n<p>start-dfs.sh<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8c8d475.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>start-yarn.sh<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8cadd6f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>22.\u4e3b\u8282\u70b9jps\u67e5\u770b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8ccea81.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>23.\u4ece\u8282\u70b9jps\u67e5\u770b<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093156-68036d8ceb400.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>24.\u7528hadoop\u63d0\u4f9b\u7684\u6d4b\u8bd5jar\u5305\u8fd0\u884c\u4f5c\u4e1a\u6d4b\u8bd5<\/p>\n<p>\u2460\u5728\u4e3b\u8282\u70b9hadoop\u76ee\u5f55\u4e0b\u521b\u5efatext\u6587\u4ef6\u5185\u5bb9\u5982\u4e0b <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093157-68036d8d13357.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u2461\u521b\u5efa\u5df2\u7ecf\u6210\u529f&#xff0c;\u4e4b\u540e\u4e0a\u4f20\u5230hdfs<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/04\/20250419093157-68036d8d30515.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u4e0a\u4f20\u547d\u4ee4&#xff1a;<\/p>\n<p>hdfs dfs -put \/hadoop\/text \/input<\/p>\n<p>\u4f7f\u7528\u547d\u4ee4\u67e5\u770b\u4e0a\u4f20\u6210\u529f&#xff1a;<\/p>\n<p>hdfs dfs -ls \/input<\/p>\n<p><img decoding=\"async\" src=\"2025-04-19u45nf1i35z1.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u2461\u4f7f\u7528 Hadoop \u81ea\u5e26\u7684\u793a\u4f8b\u7a0b\u5e8f&#xff08;\u5982 wordcount&#xff09;\u6765\u6d4b\u8bd5 MapReduce \u4f5c\u4e1a\u662f\u5426\u80fd\u591f\u6b63\u5e38\u8fd0\u884c&#xff08;\u8fd9\u4e2a\u4f5c\u4e1a\u4f1a\u7edf\u8ba1\u5355\u8bcd\u51fa\u73b0\u7684\u6b21\u6570&#xff09;&#xff1a;<\/p>\n<p> hadoop jar \/hadoop\/hadoop-3.4.0\/share\/hadoop\/mapreduce\/hadoop-mapreduce-examples-3.4.0.jar wordcount \/input \/output<\/p>\n<p>\u6267\u884c\u6210\u529f&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"2025-04-19wr2yalslz3d.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u2462\u67e5\u770b\u8f93\u51fa\u76ee\u5f55&#xff1a; <img decoding=\"async\" src=\"2025-04-191np12k4fq4v.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u8f93\u51fa\u6570\u5b572&#xff0c;\u4e0e\u9884\u671f\u7ed3\u679c\u4e00\u81f4&#xff0c;\u81f3\u6b64hadoop3.4.0\u7248\u672c\u96c6\u7fa4\u642d\u5efa\u6210\u529f&#xff0c;\u89c9\u5f97\u6709\u7528\u7684\u70b9\u4e2a\u514d\u8d39\u7684\u8d5e\u5427&#xff01;\u61c2\u5f97\u638c\u58f0&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb2.9k\u6b21\uff0c\u70b9\u8d5e35\u6b21\uff0c\u6536\u85cf18\u6b21\u3002\u6700\u65b0\u7248hadoop3.4.0\u96c6\u7fa4\u642d\u5efa_hadoop 3.4\u5b89\u88c5<\/p>\n","protected":false},"author":2,"featured_media":26884,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[779,323,43],"topic":[],"class_list":["post-26904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-hadoop","tag-323","tag-43"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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