CentOS 7.3 + Server JRE 1.8 + Hadoop-2.8.0 

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CentOS 7.3 + Server JRE 1.8 + Hadoop-2.8.0@H_502_3@

2017-06-29景峯Netkiller

本文节选自《Netkiller Linux 手札》由于工作的关系最近几年没有使用hadoop，今天看了一下版本已经到了2.8， 跟数年前用的版本差异还是很大的。于是便想更新一下文档，顺便温故知新。

137.1.单机安装（CentOS 7 + Server JRE 1.8 + Hadoop-2.8.0）@H_502_3@

本章节介绍 CentOS 7 下安装Hadoop最新版本2.8.0。

创建一个 hadoop 用户，这个用户将用于hadoop的启动与管理

  1. [root@localhost ~]# adduser hadoop
  2. [root@localhost ~]# passwd hadoop
  3. Changing password for user hadoop.
  4. New password: 
  5. Retype new password: 
  6. passwd: all authentication tokens updated successfully.

创建HFDS存储目录,建议使用 btrfs 子卷功能，创建子卷然后挂载到 /opt/hadoop

  1. [root@localhost ~]# mkdir -p /opt/hadoop/volume/{namenode,datanode}
  2. [root@localhost ~]# chown -R hadoop:hadoop /opt/hadoop/

创建SSH秘钥

  1. [root@localhost ~]# su - hadoop
  2. Last login: Wed Jun 28 20:53:16 EDT 2017 on pts/0
  3. Last Failed login: Wed Jun 28 20:58:20 EDT 2017 from localhost on ssh:notty
  4. There were 10 Failed login attempts since the last successful login.
  5.  
  6. [hadoop@localhost ~]$ ssh-keygen 
  7. Generating public/private rsa key pair.
  8. Enter file in which to save the key (/home/hadoop/.ssh/id_rsa): 
  9. Enter passphrase (empty for no passphrase): 
  10. Enter same passphrase again: 
  11. Your identification has been saved in /home/hadoop/.ssh/id_rsa.
  12. Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
  13. The key fingerprint is:
  14. 87:d5:6f:4f:b5:ac:d0:35:76:77:6e:5e:98:ae:92:2a hadoop@localhost.localdomain
  15. The key's randomart image is:
  16. +--[ RSA 2048]----+
  17. |                 |
  18. |           .     |
  19. |          . .  +=|
  20. |         o  ..++B|
  21. |        S .. .=o=|
  22. |         .  .o.=.|
  23. |           . .. o|
  24. |      E   o  .   |
  25. |       ... ..    |
  26. +-----------------+
  27.  
  28. [hadoop@localhost ~]$ ssh-copy-id hadoop@localhost
  29. /bin/ssh-copy-id: INFO: attempting to log in with the new key(s),to filter out any that are already installed
  30. /bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
  31. hadoop@localhost's password: 
  32.  
  33. Number of key(s) added: 1
  34.  
  35. Now try logging into the machine,with:   "ssh 'hadoop@localhost'"
  36. and check to make sure that only the key(s) you wanted were added.

137.1.1.安装 Java 环境

这里你可以选择使用 OpenJDK 或者 Oracle 的 Server JRE

  1. [root@localhost ~]# yum install -y java-1.8.0-openjdk

JAVA环境变量配置

  1. [root@localhost ~]# cat >> /etc/profile.d/java.sh <<EOF
  2. ################################################
  3. ### Java environment by neo<netkiller@msn.com>
  4. ################################################
  5. export JAVA_HOME=/usr/java/default
  6. export PATH=$PATH:$JAVA_HOME/bin
  7. export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar
  8. export JAVA_OPTS="-Xms2048m -Xmx4096m"
  9. EOF

如果你使用的是Oracle Java 请到Oracle网站下载的Server JRE 并配置 java classpath

  1. # wget --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/server-jre-8u131-linux-x64.tar.gz
  2. 如果你的服务器上没有安装 wget 还可以使用 curl 命令下载
  3. # curl -LO -H "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/server-jre-8u131-linux-x64.tar.gz?AuthParam=1498632436_9d59c44e2a4f0ca5bd359423ac5b790b

如果你不需要编译，仅仅用于服务器环境，那么无需下载JDK，Server JRE就可以了

137.1.2.安装 Hadoop

  1. [root@localhost ~]# cd /usr/local/src
  2. [root@localhost src]# wget http://mirrors.tuna.tsinghua.edu.cn/apache/hadoop/common/hadoop-2.8.0/hadoop-2.8.0.tar.gz
  3. [root@localhost src]# tar zxf hadoop-2.8.0.tar.gz
  4. [root@localhost src]# mv hadoop-2.8.0 /srv/
  5. [root@localhost src]# ln -s /srv/hadoop-2.8.0 /srv/hadoop
  6. [root@localhost src]# chown -R hadoop:hadoop /srv/hadoop*
  7. [root@localhost src]# su - hadoop
  8. [hadoop@localhost hadoop]$ cd /srv/hadoop

默认 Hadoop 使用 JAVA_HOME 设置，如果你想使用的JRE来运行Hadoop可以配置

  1. [hadoop@localhost hadoop]$ cp /srv/hadoop/etc/hadoop/hadoop-env.sh{,.original}
  2. [hadoop@localhost hadoop]$ sed -i "25s:\${JAVA_HOME}:/srv/java:" hadoop-env.sh

编辑 etc/hadoop/core-site.xml 配置文件，配置HDFS地址

  1. [hadoop@localhost hadoop]$ cp /srv/hadoop/etc/hadoop/core-site.xml{,.original}
  2. 			
  3. [hadoop@localhost hadoop]$ cat > /srv/hadoop/etc/hadoop/core-site.xml <<EOF
  4. <?xml version="1.0" encoding="UTF-8"?>
  5. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  6. <configuration>
  7. 	<property>
  8. 		<name>fs.defaultFS</name>
  9. 		<value>hdfs://localhost:9000/</value>
  10. 	</property>	
  11. </configuration>
  12. EOF

编辑 /srv/hadoop/etc/hadoop/hdfs-site.xml 配置文件，配置HDFS卷目录

  1. [hadoop@localhost hadoop]$ cp /srv/hadoop/etc/hadoop/hdfs-site.xml{,.original}
  2.  
  3. [hadoop@localhost hadoop]$ cat > /srv/hadoop/etc/hadoop/hdfs-site.xml <<EOF
  4. <?xml version="1.0" encoding="UTF-8"?>
  5. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  6. <configuration>
  7. 	<property>
  8. 		<name>dfs.data.dir</name>
  9. 		<value>file:///opt/hadoop/volume/datanode</value>
  10. 	</property>
  11. 	<property>
  12. 		<name>dfs.name.dir</name>
  13. 		<value>file:///opt/hadoop/volume/namenode</value>
  14. 	</property>
  15. </configuration>
  16. EOF

编辑 /srv/hadoop/etc/hadoop/mapred-site.xml 配置文件

  1. [hadoop@localhost hadoop]$ cp /srv/hadoop/etc/hadoop/mapred-site.xml{,.original}
  2.  
  3. [hadoop@localhost hadoop]$ cat > /srv/hadoop/etc/hadoop/mapred-site.xml <<"EOF"
  4. <?xml version="1.0" encoding="UTF-8"?>
  5. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  6. <configuration>
  7. 	<property>
  8. 		<name>mapreduce.framework.name</name>
  9. 		<value>yarn</value>
  10. 	</property>
  11. </configuration>
  12. EOF

编辑 /srv/hadoop/etc/hadoop/yarn-site.xml 配置文件

  1. [hadoop@localhost hadoop]$ cp /srv/hadoop/etc/hadoop/yarn-site.xml{,.original}
  2.  
  3. [hadoop@localhost hadoop]$ cat > /srv/hadoop/etc/hadoop/yarn-site.xml <<"EOF"
  4. <?xml version="1.0" encoding="UTF-8"?>
  5. <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  6. <configuration>
  7. 	<property>
  8. 		<name>yarn.nodemanager.aux-services</name>
  9. 		<value>mapreduce_shuffle</value>
  10. 	</property>
  11. </configuration>
  12. EOF

单机配置不需要不需要处理slaves保持默认即可

  1. [hadoop@localhost hadoop]$ cat /srv/hadoop/etc/hadoop/slaves 
  2. localhost

至此 Hadoop 配置已经完成

137.1.3.启动 Hadoop

初始化 HDFS

  1. [hadoop@localhost hadoop]$ bin/hdfs namenode -format
  2. 17/06/28 06:16:58 INFO namenode.NameNode: STARTUP_MSG: 
  3. /************************************************************
  4. STARTUP_MSG: Starting NameNode
  5. STARTUP_MSG:   user = hadoop
  6. STARTUP_MSG:   host = localhost/127.0.0.1
  7. STARTUP_MSG:   args = [-format]
  8. STARTUP_MSG:   version = 2.8.0
  9. STARTUP_MSG:   classpath = /srv/hadoop-2.8.0/etc/hadoop:/srv/hadoop-2.8.0/share/hadoop/common/lib/activation-1.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/asm-3.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/avro-1.7.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-cli-1.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-codec-1.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-collections-3.2.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-compress-1.4.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-configuration-1.6.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-digester-1.8.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-io-2.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-lang-2.6.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-logging-1.1.3.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-math3-3.1.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/commons-net-3.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/curator-client-2.7.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/curator-framework-2.7.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/gson-2.2.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/guava-11.0.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/hadoop-annotations-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/hadoop-auth-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/hamcrest-core-1.3.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/htrace-core4-4.0.1-incubating.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/httpclient-4.5.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/httpcore-4.4.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jcip-annotations-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jersey-core-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jersey-json-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jersey-server-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jets3t-0.9.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jettison-1.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jetty-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jetty-sslengine-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jetty-util-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jsch-0.1.51.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/json-smart-1.1.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jsp-api-2.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/jsr305-3.0.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/junit-4.11.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/log4j-1.2.17.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/mockito-all-1.8.5.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/netty-3.6.2.Final.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/nimbus-jose-jwt-3.9.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/paranamer-2.3.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/servlet-api-2.5.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/stax-api-1.0-2.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/xmlenc-0.52.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/xz-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/lib/zookeeper-3.4.6.jar:/srv/hadoop-2.8.0/share/hadoop/common/hadoop-common-2.8.0-tests.jar:/srv/hadoop-2.8.0/share/hadoop/common/hadoop-common-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/common/hadoop-nfs-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/asm-3.2.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-io-2.4.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/guava-11.0.2.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/hadoop-hdfs-client-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/htrace-core4-4.0.1-incubating.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/okhttp-2.4.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/okio-1.4.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-2.8.0-tests.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-client-2.8.0-tests.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-client-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-native-client-2.8.0-tests.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-native-client-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/hdfs/hadoop-hdfs-nfs-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/activation-1.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/aopalliance-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/asm-3.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-cli-1.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-codec-1.4.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-io-2.4.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-lang-2.6.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/commons-math-2.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/curator-client-2.7.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/curator-test-2.7.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/fst-2.24.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/guava-11.0.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/guice-3.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/javassist-3.18.1-GA.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/javax.inject-1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jersey-client-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jersey-core-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jersey-json-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jersey-server-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jettison-1.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jetty-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/log4j-1.2.17.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/objenesis-2.1.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/servlet-api-2.5.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/xz-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-api-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-client-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-common-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-registry-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-common-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-tests-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-timeline-pluginstorage-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/asm-3.2.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/guice-3.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/hadoop-annotations-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/javax.inject-1.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/junit-4.11.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/lib/xz-1.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.8.0-tests.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.8.0.jar:/srv/hadoop-2.8.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.8.0.jar:/contrib/capacity-scheduler/*.jar
  10. STARTUP_MSG:   build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r 91f2b7a13d1e97be65db92ddabc627cc29ac0009; compiled by 'jdu' on 2017-03-17T04:12Z
  11. STARTUP_MSG:   java = 1.8.0_131
  12. ************************************************************/
  13. 17/06/28 06:16:58 INFO namenode.NameNode: registered UNIX signal handlers for [TERM,HUP,INT]
  14. 17/06/28 06:16:58 INFO namenode.NameNode: createNameNode [-format]
  15. Formatting using clusterid: CID-1c208cbf-7b56-41d5-9736-4e9a1f02aadb
  16. 17/06/28 06:16:58 INFO namenode.FSEditLog: Edit logging is async:false
  17. 17/06/28 06:16:58 INFO namenode.FSNamesystem: KeyProvider: null
  18. 17/06/28 06:16:58 INFO namenode.FSNamesystem: fsLock is fair: true
  19. 17/06/28 06:16:58 INFO namenode.FSNamesystem: Detailed lock hold time metrics enabled: false
  20. 17/06/28 06:16:58 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
  21. 17/06/28 06:16:58 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
  22. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
  23. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: The block deletion will start around 2017 Jun 28 06:16:58
  24. 17/06/28 06:16:58 INFO util.GSet: Computing capacity for map BlocksMap
  25. 17/06/28 06:16:58 INFO util.GSet: VM type       = 64-bit
  26. 17/06/28 06:16:58 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB
  27. 17/06/28 06:16:58 INFO util.GSet: capacity      = 2^21 = 2097152 entries
  28. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
  29. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: defaultReplication         = 3
  30. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: maxReplication             = 512
  31. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: minReplication             = 1
  32. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
  33. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
  34. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
  35. 17/06/28 06:16:58 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
  36. 17/06/28 06:16:58 INFO namenode.FSNamesystem: fsOwner             = hadoop (auth:SIMPLE)
  37. 17/06/28 06:16:58 INFO namenode.FSNamesystem: supergroup          = supergroup
  38. 17/06/28 06:16:58 INFO namenode.FSNamesystem: isPermissionEnabled = true
  39. 17/06/28 06:16:58 INFO namenode.FSNamesystem: HA Enabled: false
  40. 17/06/28 06:16:58 INFO namenode.FSNamesystem: Append Enabled: true
  41. 17/06/28 06:16:59 INFO util.GSet: Computing capacity for map INodeMap
  42. 17/06/28 06:16:59 INFO util.GSet: VM type       = 64-bit
  43. 17/06/28 06:16:59 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
  44. 17/06/28 06:16:59 INFO util.GSet: capacity      = 2^20 = 1048576 entries
  45. 17/06/28 06:16:59 INFO namenode.FSDirectory: ACLs enabled? false
  46. 17/06/28 06:16:59 INFO namenode.FSDirectory: XAttrs enabled? true
  47. 17/06/28 06:16:59 INFO namenode.NameNode: Caching file names occurring more than 10 times
  48. 17/06/28 06:16:59 INFO util.GSet: Computing capacity for map cachedBlocks
  49. 17/06/28 06:16:59 INFO util.GSet: VM type       = 64-bit
  50. 17/06/28 06:16:59 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
  51. 17/06/28 06:16:59 INFO util.GSet: capacity      = 2^18 = 262144 entries
  52. 17/06/28 06:16:59 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
  53. 17/06/28 06:16:59 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
  54. 17/06/28 06:16:59 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
  55. 17/06/28 06:16:59 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
  56. 17/06/28 06:16:59 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
  57. 17/06/28 06:16:59 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
  58. 17/06/28 06:16:59 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
  59. 17/06/28 06:16:59 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
  60. 17/06/28 06:16:59 INFO util.GSet: Computing capacity for map NameNodeRetryCache
  61. 17/06/28 06:16:59 INFO util.GSet: VM type       = 64-bit
  62. 17/06/28 06:16:59 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
  63. 17/06/28 06:16:59 INFO util.GSet: capacity      = 2^15 = 32768 entries
  64. 17/06/28 06:16:59 INFO namenode.FSImage: Allocated new BlockPoolId: BP-577822066-127.0.0.1-1498645019088
  65. 17/06/28 06:16:59 INFO common.Storage: Storage directory /opt/hadoop/volume/namenode has been successfully formatted.
  66. 17/06/28 06:16:59 INFO namenode.FSImageFormatProtobuf: Saving image file /opt/hadoop/volume/namenode/current/fsimage.ckpt_0000000000000000000 using no compression
  67. 17/06/28 06:16:59 INFO namenode.FSImageFormatProtobuf: Image file /opt/hadoop/volume/namenode/current/fsimage.ckpt_0000000000000000000 of size 323 bytes saved in 0 seconds.
  68. 17/06/28 06:16:59 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
  69. 17/06/28 06:16:59 INFO util.ExitUtil: Exiting with status 0
  70. 17/06/28 06:16:59 INFO namenode.NameNode: SHUTDOWN_MSG: 
  71. /************************************************************
  72. SHUTDOWN_MSG: Shutting down NameNode at localhost/127.0.0.1
  73. ************************************************************/

如果一切正常，运行完毕后可以看到初始化创建的目录

  1. [hadoop@localhost hadoop]$ find /opt/hadoop/volume/
  2. /opt/hadoop/volume/
  3. /opt/hadoop/volume/namenode
  4. /opt/hadoop/volume/namenode/current
  5. /opt/hadoop/volume/namenode/current/VERSION
  6. /opt/hadoop/volume/namenode/current/seen_txid
  7. /opt/hadoop/volume/namenode/current/fsimage_0000000000000000000.md5
  8. /opt/hadoop/volume/namenode/current/fsimage_0000000000000000000
  9. /opt/hadoop/volume/datanode

137.1.4.启动与停止 hadoop

启动与停止 hadoop


启动/关闭所有服务start-all.sh/stop-all.sh

你也可以根据自己的需要手工启动

启动/关闭HDFS: start-dfs.sh/stop-dfs.sh

  1. [hadoop@localhost ~]$ /srv/hadoop/sbin/start-dfs.sh 
  2. Starting namenodes on [localhost]
  3. localhost: starting namenode,logging to /srv/hadoop-2.8.0/logs/hadoop-hadoop-namenode-localhost.localdomain.out
  4. localhost: starting datanode,logging to /srv/hadoop-2.8.0/logs/hadoop-hadoop-datanode-localhost.localdomain.out
  5. Starting secondary namenodes [0.0.0.0]
  6. The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
  7. ECDSA key fingerprint is f4:b8:65:48:55:4f:a5:a7:0f:16:ad:66:ef:98:f3:1f.
  8. Are you sure you want to continue connecting (yes/no)? yes
  9. 0.0.0.0: Warning: Permanently added '0.0.0.0' (ECDSA) to the list of known hosts.
  10. 0.0.0.0: starting secondarynamenode,logging to /srv/hadoop-2.8.0/logs/hadoop-hadoop-secondarynamenode-localhost.localdomain.out

启动/关闭 yarn: start-yarn.sh/stop-yarn.sh

  1. [hadoop@localhost ~]$ /srv/hadoop/sbin/start-yarn.sh 
  2. starting yarn daemons
  3. starting resourcemanager,logging to /srv/hadoop-2.8.0/logs/yarn-hadoop-resourcemanager-localhost.localdomain.out
  4. localhost: starting nodemanager,logging to /srv/hadoop-2.8.0/logs/yarn-hadoop-nodemanager-localhost.localdomain.out

检查 Hadoop 线程

  1. [hadoop@localhost ~]$ jps
  2. 25294 NodeManager
  3. 25189 ResourceManager
  4. 24770 Datanode
  5. 25665 Jps
  6. 24942 SecondaryNameNode
  7. 24634 NameNode

检查端口


[hadoop@localhost~]$ss-lnt|egrep"(9000|50070|8088|8042)"
LISTEN0128127.0.0.1:9000*:*
LISTEN0128*:50070*:*
LISTEN0128:::8042:::*
LISTEN0128:::8088:::*

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