{"id":952,"date":"2021-03-11T11:47:43","date_gmt":"2021-03-11T03:47:43","guid":{"rendered":"https:\/\/www.linuxdevops.cn\/?p=952"},"modified":"2021-03-16T11:45:34","modified_gmt":"2021-03-16T03:45:34","slug":"hadoop-set-up-a-single-node-cluster","status":"publish","type":"post","link":"https:\/\/www.linuxdevops.cn\/2021\/03\/hadoop-set-up-a-single-node-cluster\/","title":{"rendered":"Hadoop\uff1a\u8bbe\u7f6e\u5355\u8282\u70b9\u7fa4\u96c6\u3002"},"content":{"rendered":"<h1>Hadoop\uff1a\u8bbe\u7f6e\u5355\u8282\u70b9\u7fa4\u96c6\u3002<\/h1>\n<ul>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Purpose\">\u76ee\u7684<\/a><\/li>\n<li>\u5148\u51b3\u6761\u4ef6\n<ul>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Supported_Platforms\">\u652f\u6301\u5e73\u53f0<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Required_Software\">\u5fc5\u5907\u8f6f\u4ef6<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Installing_Software\">\u5b89\u88c5\u8f6f\u4ef6<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Download\">\u4e0b\u8f7d<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Prepare_to_Start_the_Hadoop_Cluster\">\u51c6\u5907\u542f\u52a8Hadoop\u96c6\u7fa4<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Standalone_Operation\">\u72ec\u7acb\u8fd0\u884c<\/a><\/li>\n<li>\u4f2a\u5206\u5e03\u5f0f\u64cd\u4f5c\n<ul>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Configuration\">\u914d\u7f6e<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Setup_passphraseless_ssh\">\u8bbe\u7f6e\u65e0\u5bc6\u7801SSH<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Execution\">\u6267\u884c<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#YARN_on_a_Single_Node\">\u5728\u5355\u4e2a\u8282\u70b9\u4e0a\u7684YARN<\/a><\/li>\n<\/ul>\n<\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Fully-Distributed_Operation\">\u5168\u5206\u5e03\u5f0f\u8fd0\u884c<\/a><\/li>\n<\/ul>\n<h2>\u76ee\u7684<\/h2>\n<p>\u672c\u6587\u6863\u4ecb\u7ecd\u4e86\u5982\u4f55\u8bbe\u7f6e\u548c\u914d\u7f6e\u5355\u8282\u70b9Hadoop\u5b89\u88c5\uff0c\u4ee5\u4fbf\u60a8\u53ef\u4ee5\u4f7f\u7528Hadoop MapReduce\u548cHadoop\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\uff08HDFS\uff09\u5feb\u901f\u6267\u884c\u7b80\u5355\u7684\u64cd\u4f5c\u3002<\/p>\n<h2>\u5148\u51b3\u6761\u4ef6<\/h2>\n<h3>\u652f\u6301\u5e73\u53f0<\/h3>\n<ul>\n<li>\u652f\u6301GNU \/ Linux\u4f5c\u4e3a\u5f00\u53d1\u548c\u751f\u4ea7\u5e73\u53f0\u3002Hadoop\u5df2\u5728\u5177\u67092000\u4e2a\u8282\u70b9\u7684GNU \/ Linux\u96c6\u7fa4\u4e0a\u8fdb\u884c\u4e86\u6f14\u793a\u3002<\/li>\n<li>Windows\u4e5f\u662f\u53d7\u652f\u6301\u7684\u5e73\u53f0\uff0c\u4f46\u662f\u4ee5\u4e0b\u6b65\u9aa4\u4ec5\u9002\u7528\u4e8eLinux\u3002\u8981\u5728Windows\u4e0a\u8bbe\u7f6eHadoop\uff0c\u8bf7\u53c2\u89c1<a href=\"http:\/\/wiki.apache.org\/hadoop\/Hadoop2OnWindows\">wiki\u9875\u9762<\/a>\u3002<\/li>\n<\/ul>\n<h3>\u5fc5\u5907\u8f6f\u4ef6<\/h3>\n<p>Linux\u6240\u9700\u7684\u8f6f\u4ef6\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u5fc5\u987b\u5b89\u88c5Java\u2122\u3002<a href=\"https:\/\/cwiki.apache.org\/confluence\/display\/HADOOP\/Hadoop+Java+Versions\">HadoopJavaVersions<\/a>\u4e2d\u63cf\u8ff0\u4e86\u63a8\u8350\u7684Java\u7248\u672c\u3002<\/li>\n<li>\u5982\u679c\u8981\u4f7f\u7528\u53ef\u9009\u7684\u542f\u52a8\u548c\u505c\u6b62\u811a\u672c\uff0c\u5219\u5fc5\u987b\u5b89\u88c5ssh\u5e76\u4e14\u5fc5\u987b\u8fd0\u884csshd\u624d\u80fd\u4f7f\u7528\u7ba1\u7406\u8fdc\u7a0bHadoop\u5b88\u62a4\u7a0b\u5e8f\u7684Hadoop\u811a\u672c\u3002\u53e6\u5916\uff0c\u5efa\u8bae\u4e5f\u5b89\u88c5pdsh\u4ee5\u4fbf\u66f4\u597d\u5730\u8fdb\u884cssh\u8d44\u6e90\u7ba1\u7406\u3002<\/li>\n<\/ol>\n<h3>\u5b89\u88c5\u8f6f\u4ef6<\/h3>\n<p>\u5982\u679c\u60a8\u7684\u7fa4\u96c6\u6ca1\u6709\u5fc5\u9700\u7684\u8f6f\u4ef6\uff0c\u5219\u9700\u8981\u5b89\u88c5\u5b83\u3002<\/p>\n<p>\u4f8b\u5982\u5728Ubuntu Linux\u4e0a\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ sudo apt-get install ssh\n  $ sudo apt-get install pdsh<\/code><\/pre>\n<h2>\u4e0b\u8f7d<\/h2>\n<p>\u8981\u83b7\u5f97Hadoop\u53d1\u884c\u7248\uff0c\u8bf7\u4ece\u5176\u4e2d\u4e00\u4e2a<a href=\"http:\/\/www.apache.org\/dyn\/closer.cgi\/hadoop\/common\/\">Apache Download Mirrors<\/a>\u4e0b\u8f7d\u6700\u65b0\u7684\u7a33\u5b9a\u7248\u672c\u3002<\/p>\n<pre><code class=\"language-bash\">wget https:\/\/mirrors.tuna.tsinghua.edu.cn\/apache\/hadoop\/common\/hadoop-3.3.0\/hadoop-3.3.0.tar.gz<\/code><\/pre>\n<h2>\u51c6\u5907\u542f\u52a8Hadoop\u96c6\u7fa4<\/h2>\n<p>\u89e3\u538b\u7f29\u4e0b\u8f7d\u7684Hadoop\u53d1\u884c\u7248\u3002\u5728\u53d1\u884c\u7248\u4e2d\uff0c\u7f16\u8f91\u6587\u4ef6<code>etc\/hadoop\/hadoop-env.sh<\/code>\u6765\u5b9a\u4e49\u4e00\u4e9b\u53c2\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre><code class=\"language-bash\">tar -zxvf  hadoop-3.3.0.tar.gz<\/code><\/pre>\n<pre><code class=\"language-bash\">  #\u8bbe\u7f6e\u4e3aJava\u5b89\u88c5\u7684\u6839\u76ee\u5f55\n  export JAVA_HOME=\/usr\/lib\/jdk1.8.0_212<\/code><\/pre>\n<p>\u5c1d\u8bd5\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hadoop<\/code><\/pre>\n<p>\u8fd9\u5c06\u663e\u793ahadoop\u811a\u672c\u7684\u7528\u6cd5\u6587\u6863\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4ee5\u4e09\u79cd\u53d7\u652f\u6301\u7684\u6a21\u5f0f\u4e4b\u4e00\u542f\u52a8Hadoop\u96c6\u7fa4\uff1a<\/p>\n<ul>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Standalone_Operation\">\u672c\u5730\uff08\u72ec\u7acb\uff09\u6a21\u5f0f<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Pseudo-Distributed_Operation\">\u4f2a\u5206\u5e03\u5f0f\u6a21\u5f0f<\/a><\/li>\n<li><a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Fully-Distributed_Operation\">\u5168\u5206\u5e03\u5f0f\u6a21\u5f0f<\/a><\/li>\n<\/ul>\n<h2>\u72ec\u7acb\u8fd0\u884c<\/h2>\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cHadoop\u88ab\u914d\u7f6e\u4e3a\u4ee5\u975e\u5206\u5e03\u5f0f\u6a21\u5f0f\u4f5c\u4e3a\u5355\u4e2aJava\u8fdb\u7a0b\u8fd0\u884c\u3002\u8fd9\u5bf9\u4e8e\u8c03\u8bd5\u5f88\u6709\u7528\u3002<\/p>\n<p>\u4e0b\u9762\u7684\u793a\u4f8b\u590d\u5236\u89e3\u538b\u7f29\u7684conf\u76ee\u5f55\u4ee5\u7528\u4f5c\u8f93\u5165\uff0c\u7136\u540e\u67e5\u627e\u5e76\u663e\u793a\u7ed9\u5b9a\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u6bcf\u4e2a\u5339\u914d\u9879\u3002\u8f93\u51fa\u88ab\u5199\u5165\u7ed9\u5b9a\u7684\u8f93\u51fa\u76ee\u5f55\u3002<\/p>\n<pre><code class=\"language-bash\">  $ mkdir input\n  $ cp etc\/hadoop\/*.xml input\n  $ bin\/hadoop jar share\/hadoop\/mapreduce\/hadoop-mapreduce-examples-3.2.2.jar grep input output &#039;dfs[a-z.]+&#039;\n  $ cat output\/*<\/code><\/pre>\n<h2>\u4f2a\u5206\u5e03\u5f0f\u64cd\u4f5c<\/h2>\n<p>Hadoop\u4e5f\u53ef\u4ee5\u4ee5\u4f2a\u5206\u5e03\u5f0f\u6a21\u5f0f\u5728\u5355\u8282\u70b9\u4e0a\u8fd0\u884c\uff0c\u5176\u4e2d\u6bcf\u4e2aHadoop\u5b88\u62a4\u7a0b\u5e8f\u90fd\u5728\u5355\u72ec\u7684Java\u8fdb\u7a0b\u4e2d\u8fd0\u884c\u3002<\/p>\n<h3>\u914d\u7f6e<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<p>etc\/hadoop\/core-site.xml:<\/p>\n<pre><code class=\"language-xml\">&lt;configuration&gt;\n    &lt;property&gt;\n        &lt;name&gt;fs.defaultFS&lt;\/name&gt;\n        &lt;value&gt;hdfs:\/\/localhost:9000&lt;\/value&gt;\n    &lt;\/property&gt;\n&lt;\/configuration&gt;<\/code><\/pre>\n<p>etc\/hadoop\/hdfs-site.xml:<\/p>\n<pre><code class=\"language-xml\">&lt;configuration&gt;\n    &lt;property&gt;\n        &lt;name&gt;dfs.replication&lt;\/name&gt;\n        &lt;value&gt;1&lt;\/value&gt;\n    &lt;\/property&gt;\n&lt;\/configuration&gt;<\/code><\/pre>\n<h3>\u8bbe\u7f6e\u65e0\u5bc6\u7801SSH<\/h3>\n<p>\u73b0\u5728\u68c0\u67e5\u60a8\u662f\u5426\u53ef\u4ee5\u5728\u4e0d\u4f7f\u7528\u5bc6\u7801\u7684\u60c5\u51b5\u4e0bSSH\u5230\u672c\u5730\u4e3b\u673a\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ ssh localhost<\/code><\/pre>\n<p>\u5982\u679c\u6ca1\u6709\u5bc6\u7801\u5c31\u65e0\u6cd5SSH\u5230\u672c\u5730\u4e3b\u673a\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ ssh-keygen -t rsa -P &#039;&#039; -f ~\/.ssh\/id_rsa\n  $ cat ~\/.ssh\/id_rsa.pub &gt;&gt; ~\/.ssh\/authorized_keys\n  $ chmod 0600 ~\/.ssh\/authorized_keys<\/code><\/pre>\n<h3>\u6267\u884c<\/h3>\n<p>\u4ee5\u4e0b\u8bf4\u660e\u662f\u5728\u672c\u5730\u8fd0\u884cMapReduce\u4f5c\u4e1a\u3002\u5982\u679c\u8981\u5728YARN\u4e0a\u6267\u884c\u4f5c\u4e1a\uff0c\u8bf7\u53c2\u9605<a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#YARN_on_Single_Node\">YARN\u5728\u5355\u8282\u70b9\u4e0a<\/a>\u3002<\/p>\n<ol>\n<li>\n<p>\u683c\u5f0f\u5316\u6587\u4ef6\u7cfb\u7edf\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hdfs namenode -format<\/code><\/pre>\n<\/li>\n<li>\n<p>\u542f\u52a8NameNode\u5b88\u62a4\u7a0b\u5e8f\u548cDataNode\u5b88\u62a4\u7a0b\u5e8f\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ sbin\/start-dfs.sh<\/code><\/pre>\n<p>hadoop\u5b88\u62a4\u7a0b\u5e8f\u65e5\u5fd7\u8f93\u51fa\u5c06\u5199\u5165<code>$ HADOOP_LOG_DIR<\/code>\u76ee\u5f55\uff08\u9ed8\u8ba4\u4e3a<code>$ HADOOP_HOME\/logs<\/code>\uff09\u3002<\/p>\n<\/li>\n<li>\n<p>\u6d4f\u89c8Web\u754c\u9762\u4ee5\u67e5\u627eNameNode\uff1b\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u5728\u4ee5\u4e0b\u4f4d\u7f6e\u53ef\u7528\uff1a<\/p>\n<ul>\n<li>NameNode- <a href=\"http:\/\/localhost:9870\/\">http:\/\/localhost:9870\/<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8bbe\u7f6e\u6267\u884cMapReduce\u4f5c\u4e1a\u6240\u9700\u7684HDFS\u76ee\u5f55\uff1a<\/p>\n<pre><code class=\"language-bash\"> $ bin\/hdfs dfs -mkdir \/user\n $ bin\/hdfs dfs -mkdir \/user\/<username><\/code><\/pre>\n<\/li>\n<li>\n<p>\u5c06\u8f93\u5165\u6587\u4ef6\u590d\u5236\u5230\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u4e2d\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hdfs dfs -mkdir input\n  $ bin\/hdfs dfs -put etc\/hadoop\/*.xml input<\/code><\/pre>\n<\/li>\n<li>\n<p>\u8fd0\u884c\u63d0\u4f9b\u7684\u4e00\u4e9b\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hadoop jar share\/hadoop\/mapreduce\/hadoop-mapreduce-examples-3.2.2.jar grep input output 'dfs[a-z.]+'<\/code><\/pre>\n<\/li>\n<li>\n<p>\u68c0\u67e5\u8f93\u51fa\u6587\u4ef6\uff1a\u5c06\u8f93\u51fa\u6587\u4ef6\u4ece\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u590d\u5236\u5230\u672c\u5730\u6587\u4ef6\u7cfb\u7edf\u5e76\u68c0\u67e5\u5b83\u4eec\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hdfs dfs -get output output\n  $ cat output\/*<\/code><\/pre>\n<p>\u6216\u8005<\/p>\n<p>\u67e5\u770b\u5206\u5e03\u5f0f\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u8f93\u51fa\u6587\u4ef6\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ bin\/hdfs dfs -cat output\/*<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5b8c\u6210\u540e\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u505c\u6b62\u5b88\u62a4\u8fdb\u7a0b\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ sbin\/stop-dfs.sh<\/code><\/pre>\n<\/li>\n<\/ol>\n<h3>\u5728\u5355\u4e2a\u8282\u70b9\u4e0a\u7684YARN<\/h3>\n<p>\u60a8\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u4e00\u4e9b\u53c2\u6570\u5e76\u53e6\u5916\u8fd0\u884cResourceManager\u5b88\u62a4\u7a0b\u5e8f\u548cNodeManager\u5b88\u62a4\u7a0b\u5e8f\uff0c\u4ee5\u4f2a\u5206\u5e03\u5f0f\u6a21\u5f0f\u5728YARN\u4e0a\u8fd0\u884cMapReduce\u4f5c\u4e1a\u3002<\/p>\n<p>\u4ee5\u4e0b\u6307\u4ee4\u5047\u5b9a<a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/SingleCluster.html#Execution\">\u4e0a\u8ff0\u6307\u4ee4<\/a>\u76841.\u301c4.\u6b65\u9aa4\u5df2\u6267\u884c\u3002<\/p>\n<ol>\n<li>\n<p>\u914d\u7f6e\u53c2\u6570\u5982\u4e0b\uff1a<\/p>\n<p><code>etc\/hadoop\/mapred-site.xml<\/code>:<\/p>\n<pre><code class=\"language-xml\"><configuration>\n    <property>\n        <name>mapreduce.framework.name<\/name>\n        <value>yarn<\/value>\n    <\/property>\n    <property>\n        <name>mapreduce.application.classpath<\/name>\n        <value>$HADOOP_MAPRED_HOME\/share\/hadoop\/mapreduce\/*:$HADOOP_MAPRED_HOME\/share\/hadoop\/mapreduce\/lib\/*<\/value>\n    <\/property>\n<\/configuration><\/code><\/pre>\n<p><code>etc\/hadoop\/yarn-site.xml<\/code>:<\/p>\n<pre><code class=\"language-xml\"><configuration>\n    <property>\n        <name>yarn.nodemanager.aux-services<\/name>\n        <value>mapreduce_shuffle<\/value>\n    <\/property>\n    <property>\n        <name>yarn.nodemanager.env-whitelist<\/name>\n        <value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_MAPRED_HOME<\/value>\n    <\/property>\n<\/configuration><\/code><\/pre>\n<p>\u542f\u52a8ResourceManager\u5b88\u62a4\u7a0b\u5e8f\u548cNodeManager\u5b88\u62a4\u7a0b\u5e8f\uff1a<\/p>\n<pre><code class=\"language-bash\">  $ sbin\/start-yarn.sh<\/code><\/pre>\n<\/li>\n<li>\n<p>\u6d4f\u89c8Web\u754c\u9762\u4ee5\u627e\u5230ResourceManager\uff1b\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5b83\u5728\u4ee5\u4e0b\u4f4d\u7f6e\u53ef\u7528\uff1a<\/p>\n<ul>\n<li>ResourceManager- <a href=\"http:\/\/localhost:8088\/\">http:\/\/localhost:8088\/<\/a><\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8fd0\u884cMapReduce\u4f5c\u4e1a\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b8c\u6210\u540e\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u505c\u6b62\u5b88\u62a4\u8fdb\u7a0b\uff1a<\/p>\n<pre><code class=\"language-bash\"> $ sbin\/stop-yarn.sh<\/code><\/pre>\n<\/li>\n<\/ol>\n<h2>\u5168\u5206\u5e03\u5f0f\u8fd0\u884c<\/h2>\n<p>\u6709\u5173\u8bbe\u7f6e\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u975e\u91cd\u8981\u7fa4\u96c6\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u201c<a href=\"https:\/\/hadoop.apache.org\/docs\/stable\/hadoop-project-dist\/hadoop-common\/ClusterSetup.html\">\u7fa4\u96c6\u8bbe\u7f6e\u201d<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hadoop\uff1a\u8bbe\u7f6e\u5355\u8282\u70b9\u7fa4\u96c6\u3002 \u76ee\u7684 \u5148\u51b3\u6761\u4ef6 \u652f\u6301\u5e73\u53f0 \u5fc5\u5907\u8f6f\u4ef6 \u5b89\u88c5\u8f6f\u4ef6 \u4e0b\u8f7d \u51c6\u5907\u542f\u52a8Hadoop\u96c6\u7fa4 <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,18,74],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hadoop\uff1a\u8bbe\u7f6e\u5355\u8282\u70b9\u7fa4\u96c6\u3002 - Linux\u81ea\u52a8\u5316\u8fd0\u7ef4<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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