{"id":305980,"date":"2024-05-20T19:58:59","date_gmt":"2024-05-20T11:58:59","guid":{"rendered":""},"modified":"2024-05-20T19:59:21","modified_gmt":"2024-05-20T11:59:21","slug":"hadoop%e5%90%af%e5%8a%a8%e4%b8%ba%e4%bb%80%e4%b9%88%e4%b8%8d%e6%88%90%e5%8a%9f%ef%bc%88jps%e6%98%be%e7%a4%ba%e6%9c%aa%e6%89%be%e5%88%b0%e5%91%bd%e4%bb%a4%ef%bc%89","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/305980.html","title":{"rendered":"hadoop\u542f\u52a8\u4e3a\u4ec0\u4e48\u4e0d\u6210\u529f\uff08jps\u663e\u793a\u672a\u627e\u5230\u547d\u4ee4\uff09"},"content":{"rendered":"

\"hadoop\u542f\u52a8\u4e3a\u4ec0\u4e48\u4e0d\u6210\u529f\uff08jps\u663e\u793a\u672a\u627e\u5230\u547d\u4ee4\uff09\"<\/p>\n

Hadoop\u542f\u52a8\u4e0d\u6210\u529f\u7684\u539f\u56e0\u5f52\u7ed3\u4e3a\u73af\u5883\u914d\u7f6e\u95ee\u9898\u3001\u6743\u9650\u8bbe\u7f6e\u95ee\u9898\u3001\u4ee5\u53caJava\u8def\u5f84\u8bbe\u7f6e\u4e0d\u5f53\u3002\u5728Hadoop\u542f\u52a8\u6d41\u7a0b\u4e2d\uff0c\u5982\u679cjps\u547d\u4ee4\u672a\u80fd\u627e\u5230\uff0c\u901a\u5e38\u610f\u5473\u7740Java\u7684HOME\u73af\u5883\u53d8\u91cf\u672a\u6b63\u786e\u914d\u7f6e\u6216\u8005jps\u6240\u5c5e\u7684JDK\u8def\u5f84\u672a\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684PATH\u53d8\u91cf\u4e2d\u3002\u51c6\u786e\u8bbe\u7f6eJava\u73af\u5883\u53d8\u91cf\uff0c\u786e\u4fdd\u7cfb\u7edf\u53ef\u4ee5\u627e\u5230jps\u547d\u4ee4\uff0c\u662f\u89e3\u51b3\u542f\u52a8\u4e0d\u6210\u529f\u7684\u5173\u952e\u6b65\u9aa4\u3002\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u8be6\u7ec6\u63a2\u8ba8\u5982\u4f55\u786e\u4fddHadoop\u53ef\u4ee5\u6210\u529f\u542f\u52a8\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u73af\u5883\u914d\u7f6e\u9a8c\u8bc1<\/h3>\n<\/p>\n

\u4e3a\u786e\u4fddHadoop\u80fd\u591f\u987a\u5229\u542f\u52a8\uff0c\u9996\u8981\u68c0\u67e5\u7684\u662f\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e\u3002<\/p>\n<\/p>\n

\u914d\u7f6eJAVA_HOME<\/strong><\/p>\n<\/p>\n

\u786e\u4fddJAVA_HOME\u73af\u5883\u53d8\u91cf\u6307\u5411\u7684\u662fJDK\u7684\u5b89\u88c5\u76ee\u5f55\u800c\u4e0d\u662fJRE\uff0c\u4e14JDK\u7248\u672c\u4e0eHadoop\u517c\u5bb9\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u6765\u68c0\u67e5\uff1a<\/p>\n<\/p>\n

echo $JAVA_HOME<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u6ca1\u6709\u8f93\u51fa\uff0c\u6216\u8005\u8f93\u51fa\u7684\u4e0d\u662fJDK\u7684\u8def\u5f84\uff0c\u60a8\u9700\u8981\u5728bash\u914d\u7f6e\u6587\u4ef6\uff08\u4f8b\u5982~\/.bashrc\u6216\u8005\/etc\/profile\u4e2d\uff09\u4e2d\u8bbe\u7f6eJAVA_HOME\u73af\u5883\u53d8\u91cf\uff1a<\/p>\n<\/p>\n
export JAVA_HOME=\/path\/to\/jdk<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u914d\u7f6ePATH<\/strong><\/p>\n<\/p>\n
\u5c06JDK\u7684bin\u76ee\u5f55\u6dfb\u52a0\u5230PATH\u4e2d\u53ef\u4ee5\u4f7fjps\u547d\u4ee4\u5728\u4efb\u610f\u76ee\u5f55\u4e0b\u53ef\u7528\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
export PATH=$PATH:$JAVA_HOME\/bin<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6539\u52a8\u540e\uff0c\u4f7f\u7528source\u547d\u4ee4\u4f7f\u53d8\u66f4\u7acb\u5373\u751f\u6548\uff1a<\/p>\n<\/p>\n
source ~\/.bashrc<\/p>\n
#\u6216\u8005<\/p>\n
source \/etc\/profile<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u518d\u6b21\u6267\u884cecho $PATH<\/code>\u786e\u4fddJDK bin\u8def\u5f84\u5df2\u7ecf\u6dfb\u52a0\u5230PATH\u4e2d\u3002<\/p>\n<\/p>\n
\u4e8c\u3001Hadoop\u914d\u7f6e\u6587\u4ef6\u68c0\u67e5<\/h3>\n<\/p>\n
Hadoop\u672c\u8eab\u4e5f\u9700\u8981\u6b63\u786e\u8bbe\u7f6e\u914d\u7f6e\u6587\u4ef6\uff0c\u4ee5\u4fdd\u8bc1\u987a\u7545\u542f\u52a8\u3002<\/p>\n<\/p>\n
\u6838\u5bf9hadoop-env.sh<\/strong><\/p>\n<\/p>\n
Hadoop\u7684\u914d\u7f6e\u6587\u4ef6hadoop-env.sh<\/code>\u4e2d\u540c\u6837\u9700\u8981\u914d\u7f6eJAVA_HOME\uff0c\u6253\u5f00\u8be5\u6587\u4ef6\u5e76\u786e\u4fddJAVA_HOME\u88ab\u6b63\u786e\u8bbe\u7f6e\uff1a<\/p>\n<\/p>\n
export JAVA_HOME=\/path\/to\/jdk<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u68c0\u67e5\u5176\u4ed6\u914d\u7f6e\u6587\u4ef6<\/strong><\/p>\n<\/p>\n
\u5176\u4ed6\u914d\u7f6e\u6587\u4ef6\u5982core-site.xml<\/code>\u3001hdfs-site.xml<\/code>\u548cmapred-site.xml<\/code>\u7b49\u4e5f\u9700\u8981\u6b63\u786e\u914d\u7f6e\u3002\u5c24\u5176\u662f\u6307\u5411\u6587\u4ef6\u7cfb\u7edf\u7684URI\u3001\u6570\u636e\u5b58\u50a8\u4f4d\u7f6e\u7b49\u5173\u952e\u4fe1\u606f\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u6743\u9650\u8bbe\u7f6e\u95ee\u9898<\/h3>\n<\/p>\n
\u9a8c\u8bc1Hadoop\u6587\u4ef6\u5939\u6743\u9650<\/strong><\/p>\n<\/p>\n
Hadoop\u5728\u8fd0\u884c\u65f6\u9700\u8981\u8bbf\u95ee\u5176\u5b89\u88c5\u76ee\u5f55\u4e0b\u7684\u5404\u79cd\u6587\u4ef6\u548c\u5b50\u76ee\u5f55\uff0c\u56e0\u6b64\u786e\u4fddHadoop\u7684\u6587\u4ef6\u5939\u5177\u6709\u9002\u5f53\u7684\u6743\u9650\u975e\u5e38\u91cd\u8981\uff1a<\/p>\n<\/p>\n
sudo chown -R hduser:hadoop \/path\/to\/hadoop-folder<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u91cchduser<\/code>\u662f\u8fd0\u884cHadoop\u7684\u7528\u6237\uff0chadoop<\/code>\u662f\u7528\u6237\u7ec4\uff0c\u800c\/path\/to\/hadoop-folder<\/code>\u662fHadoop\u5b89\u88c5\u76ee\u5f55\u7684\u8def\u5f84\u3002<\/p>\n<\/p>\n
\u68c0\u67e5ssh\u65e0\u5bc6\u7801\u767b\u9646<\/strong><\/p>\n<\/p>\n
Hadoop\u9700\u8981ssh\u5230\u672c\u5730\u673a\u5668\u4ee5\u542f\u52a8\u8282\u70b9\uff0c\u56e0\u6b64\uff0c\u786e\u4fdd\u5df2\u7ecf\u751f\u6210SSH\u5bc6\u94a5\u5e76\u5c06\u516c\u94a5\u590d\u5236\u5230~\/.ssh\/authorized_keys<\/code>\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
ssh-keygen -t rsa<\/p>\n
cat ~\/.ssh\/id_rsa.pub >> ~\/.ssh\/authorized_keys<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u56db\u3001\u6587\u4ef6\u7cfb\u7edf\u68c0\u67e5<\/h3>\n<\/p>\n
\u9a8c\u8bc1Hadoop\u6587\u4ef6\u7cfb\u7edf<\/strong><\/p>\n<\/p>\n
\u5728Hadoop\u9996\u6b21\u542f\u52a8\u524d\u4fdd\u8bc1HDFS\u662f\u683c\u5f0f\u5316\u7684\uff0c\u4f7f\u7528\u4e0b\u5217\u547d\u4ee4\u683c\u5f0f\u5316HDFS\uff1a<\/p>\n<\/p>\n
hdfs namenode -format<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u786e\u4fdd\u64cd\u4f5c\u65e0\u8bef\uff0c\u5e76\u4e14\u53ea\u5728\u9996\u6b21\u642d\u5efaHadoop\u7684\u65f6\u5019\u6267\u884c\uff0c\u5426\u5219\u4f1a\u4e22\u5931HDFS\u4e0a\u5b58\u50a8\u7684\u6240\u6709\u6570\u636e\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u7f51\u7edc\u914d\u7f6e\u68c0\u9a8c<\/h3>\n<\/p>\n
\u68c0\u67e5\/etc\/hosts<\/strong><\/p>\n<\/p>\n
\u786e\u4fdd\/etc\/hosts<\/code>\u6587\u4ef6\u4e2d\u6b63\u786e\u914d\u7f6e\u4e86\u672c\u673a\u7684\u4e3b\u673a\u540d\u4e0eIP\u5730\u5740\u3002<\/p>\n<\/p>\n
\u9632\u706b\u5899\u8bbe\u7f6e<\/strong><\/p>\n<\/p>\n
\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cLinux\u9632\u706b\u5899\u53ef\u80fd\u4f1a\u963b\u6b62Hadoop\u6b63\u5e38\u901a\u4fe1\uff0c\u68c0\u67e5\u9632\u706b\u5899\u8bbe\u7f6e\u6216\u8005\u4e34\u65f6\u5173\u95ed\u9632\u706b\u5899\u4e5f\u662f\u4e00\u4e2a\u6392\u9519\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
sudo service iptables stop<\/p>\n
\u6216\u8005<\/strong><\/h2>\n
sudo systemctl stop firewalld<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u516d\u3001\u65e5\u5fd7\u548c\u9519\u8bef\u68c0\u67e5<\/h3>\n<\/p>\n
\u67e5\u770bHadoop\u7684\u65e5\u5fd7\u6587\u4ef6\u53ef\u4ee5\u4e3a\u8bca\u65ad\u95ee\u9898\u63d0\u4f9b\u66f4\u591a\u4fe1\u606f\uff0c\u5e38\u89c1\u7684\u65e5\u5fd7\u6587\u4ef6\u5305\u62echadoop-$USER-namenode-$HOSTNAME.log<\/code>\u7b49\u3002\u68c0\u67e5\u8fd9\u4e9b\u65e5\u5fd7\u53ef\u4ee5\u627e\u51fa\u542f\u52a8\u5931\u8d25\u7684\u8be6\u7ec6\u539f\u56e0\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3\u4e0e\u989d\u5916\u5efa\u8bae<\/h3>\n<\/p>\n
\u603b\u4f53\u6765\u8bf4\uff0cHadoop\u542f\u52a8\u4e0d\u6210\u529f\u901a\u5e38\u4e0e\u73af\u5883\u914d\u7f6e\u4e0d\u5f53\u3001\u6743\u9650\u4e0d\u8db3\u3001\u6587\u4ef6\u7cfb\u7edf\u672a\u6b63\u786e\u521d\u59cb\u5316\u6216\u7f51\u7edc\u95ee\u9898\u6709\u5173<\/strong>\u3002\u7ec6\u81f4\u68c0\u67e5\u4e0a\u8ff0\u6bcf\u4e00\u9879\uff0c\u5e76\u6309\u7167Hadoop\u53caJava\u7684\u6587\u6863\u6b63\u786e\u8bbe\u7f6e\uff0c\u4e00\u822c\u80fd\u591f\u89e3\u51b3\u5927\u90e8\u5206\u542f\u52a8\u95ee\u9898\u3002<\/p>\n<\/p>\n
\u516b\u3001\u989d\u5916\u5efa\u8bae<\/h3>\n<\/p>\n
    \n
  • \u67e5\u770b\u5b98\u65b9\u6587\u6863<\/strong>\uff1aHadoop\u7684\u5b98\u65b9\u6587\u6863\u4e2d\u6709\u8be6\u7ec6\u7684\u5b89\u88c5\u548c\u914d\u7f6e\u6307\u5357\uff0c\u662f\u6700\u53ef\u9760\u7684\u4fe1\u606f\u6765\u6e90\u4e4b\u4e00\u3002<\/li>\n
  • \u793e\u533a\u652f\u6301<\/strong>\uff1a\u641c\u7d22\u76f8\u5173\u6280\u672f\u8bba\u575b\u6216\u793e\u533a\uff0c\u5176\u4ed6\u7528\u6237\u53ef\u80fd\u5df2\u906d\u9047\u5e76\u89e3\u51b3\u4e86\u7c7b\u4f3c\u95ee\u9898\u3002<\/li>\n
  • Hadoop\u7248\u672c\u66f4\u65b0<\/strong>\uff1a\u8003\u8651\u662f\u5426Hadoop\u7684\u7248\u672c\u8fc7\u65e7\uff0c\u65b0\u7248\u672c\u53ef\u80fd\u4fee\u6b63\u4e86\u65e7\u7248\u672c\u5b58\u5728\u7684\u95ee\u9898\u3002<\/li>\n
  • \u517c\u5bb9\u6027\u68c0\u67e5<\/strong>\uff1aHadoop\u4e0eJava\u7248\u672c\u4e4b\u95f4\u7684\u517c\u5bb9\u6027\u4e5f\u53ef\u80fd\u5bfc\u81f4\u542f\u52a8\u5931\u8d25\uff0c\u786e\u4fdd\u8fd9\u4e24\u8005\u7248\u672c\u5339\u914d\u3002<\/li>\n
  • \u95ee\u9898\u518d\u73b0<\/strong>\uff1a\u5728\u53e6\u4e00\u53f0\u673a\u5668\u5c1d\u8bd5\u5b89\u88c5\u548c\u914d\u7f6eHadoop\uff0c\u770b\u662f\u5426\u80fd\u591f\u6210\u529f\u542f\u52a8\uff0c\u4ece\u800c\u6392\u9664\u786c\u4ef6\u76f8\u5173\u95ee\u9898\u3002<\/li>\n<\/ul>\n
    \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
    \u4e3a\u4ec0\u4e48\u6211\u7684hadoop\u542f\u52a8\u4e0d\u6210\u529f\uff0c\u800cjps\u663e\u793a\u672a\u627e\u5230\u547d\u4ee4\uff1f<\/strong><\/p>\n
      \n
    1. JPS\uff08Java\u8fdb\u7a0b\u72b6\u6001\u5de5\u5177\uff09\u672a\u8bbe\u7f6e\u73af\u5883\u53d8\u91cf<\/strong>\uff1a\u786e\u4fdd\u4f60\u7684\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u4e2d\u5df2\u7ecf\u6dfb\u52a0\u4e86JPS\u7684\u8def\u5f84\u3002\u4f60\u53ef\u4ee5\u68c0\u67e5\u5e76\u6dfb\u52a0JAVA_HOME\u548cPATH\u53d8\u91cf\u3002<\/li>\n
    2. Hadoop\u5b89\u88c5\u76ee\u5f55\u672a\u6dfb\u52a0\u5230PATH<\/strong>\uff1a\u5982\u679c\u4f60\u7684Hadoop\u5b89\u88c5\u76ee\u5f55\u6ca1\u6709\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684PATH\u53d8\u91cf\u4e2d\uff0c\u4f60\u53ef\u80fd\u65e0\u6cd5\u5728\u547d\u4ee4\u884c\u4e2d\u627e\u5230hadoop\u6216jps\u547d\u4ee4\u3002\u8bf7\u786e\u4fdd\u5c06Hadoop\u5b89\u88c5\u76ee\u5f55\u6dfb\u52a0\u5230PATH\u4e2d\uff0c\u4ee5\u4fbf\u7cfb\u7edf\u53ef\u4ee5\u627e\u5230\u5b83\u4eec\u3002<\/li>\n
    3. \u672a\u6b63\u786e\u8fd0\u884cHadoop\u7684\u542f\u52a8\u811a\u672c<\/strong>\uff1aHadoop\u63d0\u4f9b\u4e86\u4e00\u4e2a\u542f\u52a8\u811a\u672c\uff08start-all.sh\uff09\uff0c\u53ef\u4ee5\u7528\u6765\u542f\u52a8Hadoop\u7684\u5404\u4e2a\u7ec4\u4ef6\u3002\u786e\u4fdd\u4f60\u6b63\u5728\u6b63\u786e\u5730\u8fd0\u884c\u542f\u52a8\u811a\u672c\uff0c\u5e76\u4e14\u811a\u672c\u6ca1\u6709\u4efb\u4f55\u62a5\u9519\u4fe1\u606f\u3002<\/li>\n
    4. Hadoop\u914d\u7f6e\u6587\u4ef6\u672a\u6b63\u786e\u8bbe\u7f6e<\/strong>\uff1aHadoop\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u5305\u542b\u4e86\u8bb8\u591a\u5fc5\u8981\u7684\u53c2\u6570\uff0c\u4f8b\u5982Hadoop\u5b89\u88c5\u76ee\u5f55\u3001Java\u8def\u5f84\u3001HDFS\u548cYARN\u7684\u914d\u7f6e\u7b49\u3002\u8bf7\u68c0\u67e5\u4f60\u7684Hadoop\u914d\u7f6e\u6587\u4ef6\uff08\u4f8b\u5982hadoop-env.sh\u3001core-site.xml\u3001hdfs-site.xml\u7b49\uff09\uff0c\u786e\u4fdd\u914d\u7f6e\u6b63\u786e\u65e0\u8bef\u3002<\/li>\n
    5. \u53ef\u80fd\u5b58\u5728\u5176\u4ed6\u51b2\u7a81\u7684Java\u5b89\u88c5<\/strong>\uff1a\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u4e0a\u5df2\u7ecf\u5b89\u88c5\u4e86\u591a\u4e2aJava\u7248\u672c\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u6df7\u6dc6\u5bfc\u81f4jps\u547d\u4ee4\u65e0\u6cd5\u627e\u5230\u3002\u8bf7\u786e\u4fdd\u4f60\u6b63\u5728\u4f7f\u7528\u4e0eHadoop\u517c\u5bb9\u7684Java\u7248\u672c\uff0c\u4e14\u6ca1\u6709\u5176\u4ed6Java\u7248\u672c\u4e0e\u4e4b\u51b2\u7a81\u3002<\/li>\n<\/ol>\n
      \u5982\u4f55\u89e3\u51b3hadoop\u542f\u52a8\u5931\u8d25\uff0cjps\u663e\u793a\u672a\u627e\u5230\u547d\u4ee4\u7684\u95ee\u9898\uff1f<\/strong><\/p>\n
        \n
      1. \u68c0\u67e5JPS\u7684\u73af\u5883\u53d8\u91cf\u8bbe\u7f6e<\/strong>\uff1a\u786e\u4fdd\u4f60\u5df2\u7ecf\u6b63\u786e\u8bbe\u7f6e\u4e86JAVA_HOME\u548cPATH\u73af\u5883\u53d8\u91cf\uff0c\u4ee5\u4fbf\u7cfb\u7edf\u53ef\u4ee5\u627e\u5230JPS\u547d\u4ee4\u3002<\/li>\n
      2. \u6dfb\u52a0Hadoop\u5b89\u88c5\u76ee\u5f55\u5230PATH<\/strong>\uff1a\u5c06Hadoop\u7684\u5b89\u88c5\u76ee\u5f55\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684PATH\u53d8\u91cf\u4e2d\uff0c\u8fd9\u6837\u7cfb\u7edf\u5c31\u80fd\u591f\u627e\u5230hadoop\u548cjps\u547d\u4ee4\u3002<\/li>\n
      3. \u68c0\u67e5\u542f\u52a8\u811a\u672c\u7684\u8fd0\u884c\u60c5\u51b5<\/strong>\uff1a\u786e\u4fdd\u4f60\u6b63\u5e38\u6267\u884c\u4e86Hadoop\u7684\u542f\u52a8\u811a\u672c\uff08start-all.sh\uff09\uff0c\u5e76\u4e14\u6ca1\u6709\u62a5\u9519\u4fe1\u606f\u3002\u5982\u679c\u6709\u62a5\u9519\uff0c\u8bf7\u6839\u636e\u62a5\u9519\u4fe1\u606f\u8fdb\u884c\u76f8\u5e94\u7684\u5904\u7406\u3002<\/li>\n
      4. \u786e\u8ba4Hadoop\u914d\u7f6e\u6587\u4ef6\u6b63\u786e\u8bbe\u7f6e<\/strong>\uff1a\u4ed4\u7ec6\u68c0\u67e5Hadoop\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684\u53c2\u6570\u8bbe\u7f6e\uff0c\u786e\u4fddHadoop\u5b89\u88c5\u76ee\u5f55\u3001Java\u8def\u5f84\u3001HDFS\u548cYARN\u7684\u914d\u7f6e\u7b49\u90fd\u6b63\u786e\u65e0\u8bef\u3002<\/li>\n
      5. \u89e3\u51b3Java\u7248\u672c\u51b2\u7a81<\/strong>\uff1a\u5982\u679c\u4f60\u7684\u7cfb\u7edf\u4e0a\u5b89\u88c5\u4e86\u591a\u4e2aJava\u7248\u672c\uff0c\u8bf7\u68c0\u67e5\u5e76\u89e3\u51b3\u53ef\u80fd\u5b58\u5728\u7684\u51b2\u7a81\u3002\u786e\u4fdd\u4f60\u4f7f\u7528\u7684Java\u7248\u672c\u4e0eHadoop\u517c\u5bb9\uff0c\u5e76\u4e14\u6ca1\u6709\u5176\u4ed6Java\u7248\u672c\u4e0e\u4e4b\u51b2\u7a81\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"Hadoop\u542f\u52a8\u4e0d\u6210\u529f\u7684\u539f\u56e0\u5f52\u7ed3\u4e3a\u73af\u5883\u914d\u7f6e\u95ee\u9898\u3001\u6743\u9650\u8bbe\u7f6e\u95ee\u9898\u3001\u4ee5\u53caJava\u8def\u5f84\u8bbe\u7f6e\u4e0d\u5f53\u3002\u5728Hadoop\u542f\u52a8\u6d41\u7a0b […]","protected":false},"author":3,"featured_media":306015,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/305980"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=305980"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/305980\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/306015"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=305980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=305980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=305980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}