{"id":2045,"date":"2023-06-27T13:54:15","date_gmt":"2023-06-27T05:54:15","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2045"},"modified":"2023-06-27T13:54:15","modified_gmt":"2023-06-27T05:54:15","slug":"hadoop-%e9%9b%86%e7%be%a4%e6%90%ad%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/uncategorized\/hadoop-%e9%9b%86%e7%be%a4%e6%90%ad%e5%bb%ba\/","title":{"rendered":"Hadoop \u96c6\u7fa4\u642d\u5efa"},"content":{"rendered":"
\n

\u7248\u672c\uff1a  CentOS7  Hadoop3.2.2 JDK1.8<\/p>\n

\u91c7\u75283\u53f0\u673a\u5668 \u8bbe\u7f6e ip\u548c\u673a\u5668\u540d<\/p>\n

\t<\/span>vi \/etc\/hosts<\/p>\n

\t<\/span>10.188.120.101 hadoop-1<\/p>\n

\t<\/span>10.188.120.102 hadoop-2<\/p>\n

\t<\/span>10.188.120.103 hadoop-3<\/p>\n

3\u53f0\u673a\u5668\u4e0a\u90fd\u6267\u884c\u5982\u4e0b\u547d\u4ee4<\/p>\n

```bash<\/p>\n

ssh-keygen -t rsa<\/p>\n

```<\/p>\n

\u6267\u884c\u547d\u4ee4\u540e\u4e00\u76f4Enter\u5373\u53ef\uff01<\/p>\n

 1.\u514d\u5bc6\u767b\u5f55<\/p>\n

`\u56e0\u4e3a\u6211\u73b0\u5728\u7528\u7684\u662froot\u8d26\u6237\uff0c\u6240\u4ee5\u79d8\u94a5\u6587\u4ef6\u4fdd\u5b58\u5230\u4e86\/root\/.ssh\/\u76ee\u5f55\u5185\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u67e5\u770b\uff0c\u547d\u4ee4\u662f<\/section>\n

ls \/root\/.ssh\/<\/p>\n

\u6ce8\u610f\uff1aauthorized_keys \u8fd9\u6587\u4ef6\u662f\u540e\u7eed\u521b\u5efa\u7684\uff0c\u5355\u7eaf\u7684\u751f\u6210\u79d8\u94a5\u6ca1\u6709\u8fd9\u4e2a\u6587\u4ef6\u3002\u4f7f\u7528\u540c\u6837\u7684\u65b9\u6cd5\u4e3ahadoop-2\u548chadoop-3\u751f\u6210\u79d8\u94a5(\u547d\u4ee4\u5b8c\u5168\u76f8\u540c\uff0c\u4e0d\u7528\u505a\u4efb\u4f55\u4fee\u6539)\u3002
<\/p>\n

2.\u5728hadoop-1\u4e0a\u521b\u5efaauthorized_keys\u6587\u4ef6<\/p>\n

\u63a5\u4e0b\u6765\u8981\u505a\u7684\u4e8b\u60c5\u662f\u57283\u53f0\u673a\u5668\u7684\/root\/.ssh\/\u76ee\u5f55\u4e0b\u90fd\u5b58\u5165\u4e00\u4e2a\u5185\u5bb9\u76f8\u540c\u7684\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u79f0\u53ebauthorized_keys\uff0c\u6587\u4ef6\u5185\u5bb9\u662f\u6211\u4eec\u521a\u624d\u4e3a3\u53f0\u673a\u5668\u751f\u6210\u7684\u516c\u94a5\u3002\u4e3a\u4e86\u65b9\u4fbf\uff0c\u6211\u4e0b\u9762\u7684\u6b65\u9aa4\u662f\u5148\u5728hadoop-1\u4e0a\u751f\u6210authorized_keys\u6587\u4ef6\uff0c\u7136\u540e\u628a3\u53f0\u673a\u5668\u521a\u624d\u751f\u6210\u7684\u516c\u94a5\u52a0\u5165\u5230\u8fd9\u4e2ahadoop-1\u7684authorized_keys\u6587\u4ef6\u91cc\uff0c\u7136\u540e\u518d\u5c06\u8fd9\u4e2aauthorized_keys\u6587\u4ef6\u590d\u5236\u5230hadoop-2\u548chadoop-3\u4e0a\u9762\u3002<\/p>\n

 

\u7136\u540e\u5c06hadoop-1\u4e0a\u7684\/root\/.ssh\/id_rsa.pub\u6587\u4ef6\u5185\u5bb9\uff0chadoop-2\u4e0a\u7684\/root\/.ssh\/id_rsa.pub\u6587\u4ef6\u5185\u5bb9\uff0chadoop-3\u4e0a\u7684\/root\/.ssh\/id_rsa.pub\u6587\u4ef6\u5185\u5bb9\u590d\u5236\u5230\u8fd9\u4e2aauthorized_keys\u6587\u4ef6\u4e2d\uff0c\u590d\u5236\u7684\u65b9\u6cd5\u5f88\u591a\u4e86\uff0c\u53ef\u4ee5\u7528cat\u547d\u4ee4\u548cvim\u547d\u4ee4\u7ed3\u5408\u6765\u5f04\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u628a\u8fd93\u53f0\u673a\u5668\u4e0a\u7684\/root\/.ssh\/id_rsa.pub\u6587\u4ef6\u4e0b\u8f7d\u5230\u672c\u5730\uff0c\u5728\u672c\u5730\u5c06authorized_keys\u6587\u4ef6\u7f16\u8f91\u597d\u5728\u4e0a\u8f7d\u5230\u8fd93\u53f0\u673a\u5668\u4e0a\u3002<\/p>\n

3. \u5b89\u88c5hadoop<\/p>\n

 \u6ce8\u610f\uff1a\u4e0d\u9700\u8981\u57283\u53f0\u673a\u5668\u4e0a\u91cd\u590d\u4e0b\u9762\u6240\u8bb2\u7684\u6b65\u9aa4\u3002\u53ea\u9700\u8981\u5728hadoop-1\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u597d\u540e\u4f7f\u7528scp\u547d\u4ee4\u590d\u5236\u5230\u5176\u4f59\u4e24\u53f0\u670d\u52a1\u5668\u5373\u53ef<\/p>\n

\u89e3\u538b\u5b89\u88c5 tar -xvf hadoop-3.2.2.tar.gz<\/p>\n

\u521b\u5efa\u51e0\u4e2a\u6587\u4ef6\u76ee\u5f55\uff0c\u6211\u662f\u5728\u5b89\u88c5hadoop \u7684\u76ee\u5f55\u4e0b\u65b0\u5efa\u4e86 flhadoop<\/p>\n

\u7136\u540e\u5728\u8fd9\u4e2a\u76ee\u5f55\u4e0b \u65b0\u5efa tmp \u3001dfs \u3001var<\/p>\n

\u5728 dfs \u76ee\u5f55\u4e0b \u65b0\u5efa\u4e86 name \u3001data<\/p>\n

4.\u4fee\u6539etc\/hadoop\u4e2d\u7684\u4e00\u7cfb\u5217\u914d\u7f6e\u6587\u4ef6 <\/p>\n

1.  \u4fee\u6539core-site.xml<\/p>\n

 \u6267\u884c vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/core-site.xml \u547d\u4ee4<\/p>\n

<property><\/p>\n

        <name>hadoop.tmp.dir<\/name><\/p>\n

        <value>\/usr\/local\/work\/hadoop\/flhadoop\/tmp<\/value><\/p>\n

        <description>Abase for other temporary directories.<\/description><\/p>\n

   <\/property><\/p>\n

   <property><\/p>\n

        <name>fs.default.name<\/name><\/p>\n

        <value>hdfs:\/\/hadoop-1:9000<\/value><\/p>\n

   <\/property><\/p>\n

2.\u4fee\u6539hadoop-env.sh <\/p>\n

\u6267\u884c vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/hadoop-env.sh <\/p>\n

export JAVA_HOME=\/usr\/local\/java\/jdk1.8.0_291<\/p>\n

3. \u4fee\u6539hdfs-site.xml<\/p>\n

          \u6267\u884c vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/hdfs-site.xml \u6587\u4ef6<\/p>\n

<property><\/p>\n

   <name>dfs.name.dir<\/name><\/p>\n

   <value>\/usr\/local\/work\/hadoop\/flhadoop\/dfs\/name<\/value><\/p>\n

   <description>Path on the local filesystem where theNameNode stores the namespace and transactions logs persistently.<\/p>\n

   <\/description><\/p>\n

<\/property><\/p>\n

 <\/p>\n

<property><\/p>\n

   <name>dfs.data.dir<\/name><\/p>\n

   <value>\/usr\/local\/work\/hadoop\/flhadoop\/dfs\/data<\/value><\/p>\n

   <description>Comma separated list of paths on the localfilesystem of a DataNode where it should store its blocks.<\/p>\n

   <\/description><\/p>\n

<\/property><\/p>\n

 <\/p>\n

<property><\/p>\n

   <name>dfs.replication<\/name><\/p>\n

   <value>2<\/value><\/p>\n

<\/property><\/p>\n

 <\/p>\n

<property><\/p>\n

   <name>dfs.permissions<\/name><\/p>\n

   <value>false<\/value><\/p>\n

   <description>need not permissions<\/description><\/p>\n

<\/property><\/p>\n

PS\uff1adfs.permissions\u914d\u7f6e\u4e3afalse\u540e\uff0c\u53ef\u4ee5\u5141\u8bb8\u4e0d\u8981\u68c0\u67e5\u6743\u9650\u5c31\u751f\u6210dfs\u4e0a\u7684\u6587\u4ef6\uff0c\u65b9\u4fbf\u5012\u662f\u65b9\u4fbf\u4e86\uff0c\u4f46\u662f\u4f60\u9700\u8981\u9632\u6b62\u8bef\u5220\u9664\uff0c\u8bf7\u5c06\u5b83\u8bbe\u7f6e\u4e3atrue\uff0c\u6216\u8005\u76f4\u63a5\u5c06\u8be5property\u8282\u70b9\u5220\u9664\uff0c\u56e0\u4e3a\u9ed8\u8ba4\u5c31\u662ftrue\u3002<\/p>\n

4.\u65b0\u5efa\u5e76\u4e14\u4fee\u6539mapred-site.xml<\/p>\n

\u6267\u884c vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/mapred-site.xml \u547d\u4ee4<\/p>\n

<!-- \u914d\u7f6emapReduce\u5728Yarn\u4e0a\u8fd0\u884c(\u9ed8\u8ba4\u672c\u5730\u8fd0\u884c) --><\/p>\n

<property><\/p>\n

   <name>mapreduce.framework.name<\/name><\/p>\n

   <value>yarn<\/value><\/p>\n

<\/property><\/p>\n

5.\u4fee\u6539workers\u6587\u4ef6<\/p>\n

\u6267\u884c\u547d\u4ee4 vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/workers <\/p>\n

\u5c06\u91cc\u9762\u7684localhost\u5220\u9664<\/p>\n

hadoop-1<\/p>\n

hadoop-2<\/p>\n

hadoop-3<\/p>\n

6. \u4fee\u6539yarn-site.xml\u6587\u4ef6<\/p>\n

\u6267\u884c vi \/opt\/hadoop\/hadoop-3.2.2\/etc\/hadoop\/yarn-site.xml \u547d\u4ee4\uff0c<\/p>\n

\u5728<configuration>\u8282\u70b9\u5185\u52a0\u5165\u914d\u7f6e(\u6ce8\u610f\u4e86\uff0c\u5185\u5b58\u6839\u636e\u673a\u5668\u914d\u7f6e\u8d8a\u5927\u8d8a\u597d\uff0c\u6211\u8fd9\u91cc\u53ea\u914d2\u4e2aG\u662f\u56e0\u4e3a\u673a\u5668\u4e0d\u884c):<\/p>\n

   <property><\/p>\n

        <description>\u6307\u5b9aYARN\u7684\u8001\u5927\uff08ResourceManager\uff09\u7684\u5730\u5740<\/description><\/p>\n

        <name>yarn.resourcemanager.hostname<\/name><\/p>\n

        <value>hadoop-1<\/value><\/p>\n

   <\/property><\/p>\n

 <\/p>\n

<!-- NodeManager\u4e0a\u8fd0\u884c\u7684\u9644\u5c5e\u670d\u52a1\u3002\u9700\u8981\u914d\u7f6e\u6210mapreduce_shfffle,\u624d\u53ef\u8fd0\u884cMapReduce\u7a0b\u5e8f\u9ed8\u8ba4\u503c --><\/p>\n

   <property><\/p>\n

        <name>yarn.nodemanager.aux-services<\/name><\/p>\n

        <value>mapreduce_shuffle<\/value><\/p>\n

   <\/property><\/p>\n

 <\/p>\n

   <property><\/p>\n

        <discription>\u6bcf\u4e2a\u8282\u70b9\u53ef\u7528\u5185\u5b58,\u5355\u4f4dMB,\u9ed8\u8ba48182MB<\/discription><\/p>\n

        <name>yarn.scheduler.maximum-allocation-mb<\/name><\/p>\n

        <value>2048<\/value><\/p>\n

   <\/property><\/p>\n

 <\/p>\n

   <property><\/p>\n

        <name>yarn.nodemanager.vmem-check-enabled<\/name><\/p>\n

        <value>false<\/value><\/p>\n

   <\/property><\/p>\n

  \u8bf4\u660e\uff1ayarn.nodemanager.vmem-check-enabled\u8fd9\u4e2a\u7684\u610f\u601d\u662f\u5ffd\u7565\u865a\u62df\u5185\u5b58\u7684\u68c0\u67e5\uff0c\u5982\u679c\u4f60\u662f\u5b89\u88c5\u5728\u865a\u62df\u673a\u4e0a\uff0c\u8fd9\u4e2a\u914d\u7f6e\u5f88\u6709\u7528\uff0c\u914d\u4e0a\u53bb\u4e4b\u540e\u540e\u7eed\u64cd\u4f5c\u4e0d\u5bb9\u6613\u51fa\u95ee\u9898\u3002\u5982\u679c\u662f\u5b9e\u4f53\u673a\u4e0a\uff0c\u5e76\u4e14\u5185\u5b58\u591f\u591a\uff0c\u53ef\u4ee5\u5c06\u8fd9\u4e2a\u914d\u7f6e\u53bb\u6389\u3002<\/p>\n

7.\u914d\u7f6ehadoop-3.2.0\/sbin\/\u76ee\u5f55\u4e0bstart-dfs.sh\u3001start-yarn.sh\u3001stop-dfs.sh\u3001stop-yarn.sh\u6587\u4ef6<\/p>\n

\u5728start-dfs.sh\u3001stop-dfs.sh\u5f00\u59cb\u7b2c\u4e00\u884c\u52a0\u4e0a<\/p>\n

HDFS_DATANODE_USER=root<\/p>\n

HADOOP_SECURE_DN_USER=hdfs<\/p>\n

HDFS_NAMENODE_USER=root<\/p>\n

HDFS_SECONDARYNAMENODE_USER=root<\/p>\n

\u5728start-yarn.sh\u3001stop-yarn.sh\u5f00\u59cb\u7b2c\u4e00\u884c\u52a0\u4e0a <\/p>\n

YARN_RESOURCEMANAGER_USER=root<\/p>\n

HADOOP_SECURE_DN_USER=yarn<\/p>\n

YARN_NODEMANAGER_USER=root<\/p>\n

8.\u914d\u7f6e\u597d\u540e\uff0c\u5c06 hadoop-1\u4e0a\u7684 \/usr\/local\/work\/hadoop\/hadoop-3.2.0 \u6587\u4ef6\u5939\u590d\u5236\u5230\u5404\u4e2a\u8282\u70b9\u4e0a<\/p>\n

# \u8fd9\u91cc\u6211hadoop\u76ee\u5f55\u4e0b\u8fd8\u6709\u6570\u636e\u5b58\u50a8<\/p>\n

scp -r \/usr\/local\/work\/hadoop\/ root@hadoop-2:\/opt\/usr\/local\/work\/hadoop<\/p>\n

scp -r \/usr\/local\/work\/hadoop\/ root@hadoop-3:\/opt\/usr\/local\/work\/hadoop<\/p>\n

 <\/p>\n

scp \/etc\/profile root@hadoop-2:\/etc\/    #copy\u914d\u7f6e\u6587\u4ef6\u5230\u5404\u4e2a\u8282\u70b9<\/p>\n

scp \/etc\/profile root@hadoop-3:\/etc\/<\/p>\n

5.\u542f\u52a8Hadoop<\/p>\n

\u8fdb\u5165\u5230hadoop-1\u8fd9\u53f0\u673a\u5668\u7684\/opt\/hadoop\/hadoop-3.2.2\/bin\u76ee\u5f55\uff0c\u4e5f\u5c31\u662f\u6267\u884c\u547d\u4ee4\uff1a<\/p>\n

\u6267\u884c\u521d\u59cb\u5316\u811a\u672c\uff0c\u4e5f\u5c31\u662f\u6267\u884c\u547d\u4ee4\uff1a
<\/p>\n

.\/hadoop namenode -format<\/p>\n

\u5728namenode\u4e0a\u6267\u884c\u542f\u52a8\u547d\u4ee4<\/p>\n


<\/p>\n

\u56e0\u4e3ahadoop-1\u662fnamenode\uff0chadoop-2\u548chadoop-3\u90fd\u662fdatanode\uff0c\u6240\u4ee5\u53ea\u9700\u8981\u518dhadoop-1\u4e0a\u6267\u884c\u542f\u52a8\u547d\u4ee4\u5373\u53ef\u3002<\/p>\n

\u8fdb\u5165\u5230hadoop-1\u8fd9\u53f0\u673a\u5668\u7684\/opt\/hadoop\/hadoop-3.2.0\/sbin\u76ee\u5f55\uff0c\u4e5f\u5c31\u662f\u6267\u884c\u547d\u4ee4
<\/p>\n

 .\/start-all.sh<\/p>\n

hadoop-1\u662f\u6211\u4eec\u7684namenode\uff0c\u8be5\u673a\u5668\u7684IP\u662f10.188.120.201\uff0c\u5728\u672c\u5730\u7535\u8111\u8bbf\u95ee\u5982\u4e0b\u5730\u5740:<\/p>\n

  http:\/\/10.188.120.201:9870\/<\/p>\n

\u8bbf\u95ee\u96c6\u7fa4\u9875\u9762url<\/p>\n

http:\/\/192.168.217.128:8088\/<\/p>\n


<\/p>\n

<\/mp-style-type><\/p>\n

\n

\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7: \u5c0f\u51af\u5927\u6570\u636e\u6210\u957f\u4e4b\u8def <\/p>\n<\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"

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