CentOS 7部署Hadoop（伪分布式）

Linux系统配置SSH免密登录(多主机互通)

修改配置文件

1、进入/usr/local//etc//目录，可以看到如下配置文件，如果需要修改的文件不存在，那就创建一个，vi命令可以直接创建

[hadoop@master100 ~]$ cd /usr/local/hadoop/etc/hadoop/[hadoop@master100 hadoop]$ ll
总用量 152
-rw-r--r--. 1 hadoop hadoop  4436 8月  18 2016 capacity-scheduler.xml
-rw-r--r--. 1 hadoop hadoop  1335 8月  18 2016 configuration.xsl
-rw-r--r--. 1 hadoop hadoop   318 8月  18 2016 container-executor.cfg
-rw-r--r--. 1 hadoop hadoop   774 8月  18 2016 core-site.xml
-rw-r--r--. 1 hadoop hadoop  3589 8月  18 2016 hadoop-env.cmd
-rw-r--r--. 1 hadoop hadoop  4224 8月  18 2016 hadoop-env.sh
-rw-r--r--. 1 hadoop hadoop  2598 8月  18 2016 hadoop-metrics2.properties
-rw-r--r--. 1 hadoop hadoop  2490 8月  18 2016 hadoop-metrics.properties
-rw-r--r--. 1 hadoop hadoop  9683 8月  18 2016 hadoop-policy.xml
-rw-r--r--. 1 hadoop hadoop   775 8月  18 2016 hdfs-site.xml
-rw-r--r--. 1 hadoop hadoop  1449 8月  18 2016 httpfs-env.sh
-rw-r--r--. 1 hadoop hadoop  1657 8月  18 2016 httpfs-log4j.properties
-rw-r--r--. 1 hadoop hadoop    21 8月  18 2016 httpfs-signature.secret
-rw-r--r--. 1 hadoop hadoop   620 8月  18 2016 httpfs-site.xml
-rw-r--r--. 1 hadoop hadoop  3518 8月  18 2016 kms-acls.xml
-rw-r--r--. 1 hadoop hadoop  1527 8月  18 2016 kms-env.sh
-rw-r--r--. 1 hadoop hadoop  1631 8月  18 2016 kms-log4j.properties
-rw-r--r--. 1 hadoop hadoop  5511 8月  18 2016 kms-site.xml
-rw-r--r--. 1 hadoop hadoop 11237 8月  18 2016 log4j.properties
-rw-r--r--. 1 hadoop hadoop   931 8月  18 2016 mapred-env.cmd
-rw-r--r--. 1 hadoop hadoop  1383 8月  18 2016 mapred-env.sh
-rw-r--r--. 1 hadoop hadoop  4113 8月  18 2016 mapred-queues.xml.template
-rw-r--r--. 1 hadoop hadoop   758 8月  18 2016 mapred-site.xml.template
-rw-r--r--. 1 hadoop hadoop    10 8月  18 2016 slaves
-rw-r--r--. 1 hadoop hadoop  2316 8月  18 2016 ssl-client.xml.example
-rw-r--r--. 1 hadoop hadoop  2268 8月  18 2016 ssl-server.xml.example
-rw-r--r--. 1 hadoop hadoop  2191 8月  18 2016 yarn-env.cmd
-rw-r--r--. 1 hadoop hadoop  4567 8月  18 2016 yarn-env.sh
-rw-r--r--. 1 hadoop hadoop   690 8月  18 2016 yarn-site.xml

2、修改core-site.xml文件

[hadoop@master100 hadoop]$ vi core-site.xml

配置文件如下：

hadoop.tmp.dirfile:/usr/local/hadoop/tmp指定hadoop运行时产生文件的存储路径fs.defaultFShdfs://localhost:9000hdfs namenode的通信地址,通信端口

3、修改hdfs-site.xml

vi hdfs-site.xml

配置文件如下：

dfs.replication1指定HDFS存储数据的副本数目，默认情况下是3份dfs.namenode.name.dirfile:/usr/local/hadoop/hadoopdata/namenodenamenode存放数据的目录dfs.datanode.data.dirfile:/usr/local/hadoop/hadoopdata/datanodedatanode存放block块的目录dfs.permissions.enabledfalse关闭权限验证

4、修改-site.xml

/usr/local//etc/文件夹中并没有-site.xml文件，但提供了模板-site.xml.，将其复制一份重命名为-site.xml 即可

[hadoop@master100 hadoop]$ cp mapred-site.xml.template mapred-site.xml[hadoop@master100 hadoop]$ vi mapred-site.xml

配置文件如下：

mapreduce.framework.nameyarn指定mapreduce运行在yarn上

5、修改yarn-site.xml

[hadoop@master100 hadoop]$ vi yarn-site.xml

yarn.nodemanager.aux-servicesmapreduce_shufflemapreduce执行shuffle时获取数据的方式

6、为了防止运行时报错，修改一下-env.sh文件

[hadoop@master100 hadoop]$ vi hadoop-env.sh

找到 =${}，在前面加个#注释掉，将用路径代替，如下：

#export JAVA_HOME=${JAVA_HOME}
export JAVA_HOME=/usr/java/jdk1.8.0_181-amd64

上述配置文件我已经上传至：

可以直接下载下来，通过上传到Linux直接覆盖原来文件的方式进行配置

关闭防火墙

7使用的是作为防火墙，与 6 有所不同

查看防火墙状态：

systemctl status firewalld

如下状态说明正在运行：

[hadoop@master100 hadoop]$ systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemonLoaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)Active: active (running) since 三 2018-10-03 19:35:22 CST; 1h 49min agoDocs: man:firewalld(1)Main PID: 724 (firewalld)CGroup: /system.slice/firewalld.service└─724 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

关闭防火墙：

systemctl stop firewalld

关闭之后状态如下：

[hadoop@master100 hadoop]$ systemctl stop firewalld
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to manage system services or units.
Authenticating as: root
Password: #这里需要输入root账户密码
==== AUTHENTICATION COMPLETE ===
[hadoop@master100 hadoop]$ systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemonLoaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)Active: inactive (dead) since 三 2018-10-03 21:27:34 CST; 40s agoDocs: man:firewalld(1)Process: 724 ExecStart=/usr/sbin/firewalld --nofork --nopid $FIREWALLD_ARGS (code=exited, status=0/SUCCESS)Main PID: 724 (code=exited, status=0/SUCCESS)

关闭防火墙开机自动启动：

systemctl disable firewalld

执行过程如下：

[hadoop@master100 hadoop]$ systemctl disable firewalld==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-unit-files ===
Authentication is required to manage system service or unit files.
Authenticating as: root
Password: #输入root用户密码
==== AUTHENTICATION COMPLETE ===
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
==== AUTHENTICATING FOR org.freedesktop.systemd1.reload-daemon ===
Authentication is required to reload the systemd state.
Authenticating as: root
Password: #输入root用户密码
==== AUTHENTICATION COMPLETE ===#查看开机启动状态，确认关闭成功
[hadoop@master100 hadoop]$ systemctl is-enabled firewalld.service
disabled

更多防火墙操作请参考：

使用打开关闭防火墙与端口

HDFS初始化

配置完后，格式化

[hadoop@master100 hadoop]$ hdfs namenode -format

出现如下信息说明格式化成功：

[hadoop@master100 hadoop]$ hdfs namenode -format
18/10/03 21:05:52 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = master100/192.168.33.100
STARTUP_MSG:   args = [-format]
STARTUP_MSG:   version = 2.7.3
STARTUP_MSG:   classpath = /usr/local/hadoop/etc/hadoop:/usr/local/hadoop/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/stax-api-1.0-2.jar:/usr/local/hadoop/share/hadoop/common/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/common/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/common/lib/jets3t-0.9.0.jar:/usr/local/hadoop/share/hadoop/common/lib/httpclient-4.2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/httpcore-4.2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-configuration-1.6.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-digester-1.8.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-api-1.7.10.jar:/usr/local/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar:/usr/local/hadoop/share/hadoop/common/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/common/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/common/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/common/lib/gson-2.2.4.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-auth-2.7.3.jar:/usr/local/hadoop/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/usr/local/hadoop/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/usr/local/hadoop/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/usr/local/hadoop/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/usr/local/hadoop/share/hadoop/common/lib/zookeeper-3.4.6.jar:/usr/local/hadoop/share/hadoop/common/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-framework-2.7.1.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-client-2.7.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jsch-0.1.42.jar:/usr/local/hadoop/share/hadoop/common/lib/curator-recipes-2.7.1.jar:/usr/local/hadoop/share/hadoop/common/lib/htrace-core-3.1.0-incubating.jar:/usr/local/hadoop/share/hadoop/common/lib/junit-4.11.jar:/usr/local/hadoop/share/hadoop/common/lib/hamcrest-core-1.3.jar:/usr/local/hadoop/share/hadoop/common/lib/mockito-all-1.8.5.jar:/usr/local/hadoop/share/hadoop/common/lib/hadoop-annotations-2.7.3.jar:/usr/local/hadoop/share/hadoop/common/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/common/lib/jsr305-3.0.0.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-math3-3.1.1.jar:/usr/local/hadoop/share/hadoop/common/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-httpclient-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-net-3.1.jar:/usr/local/hadoop/share/hadoop/common/lib/commons-collections-3.2.2.jar:/usr/local/hadoop/share/hadoop/common/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/common/lib/jsp-api-2.1.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/common/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.7.3.jar:/usr/local/hadoop/share/hadoop/common/hadoop-common-2.7.3-tests.jar:/usr/local/hadoop/share/hadoop/common/hadoop-nfs-2.7.3.jar:/usr/local/hadoop/share/hadoop/hdfs:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jsr305-3.0.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/htrace-core-3.1.0-incubating.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/netty-all-4.0.23.Final.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/usr/local/hadoop/share/hadoop/hdfs/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.7.3.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-2.7.3-tests.jar:/usr/local/hadoop/share/hadoop/hdfs/hadoop-hdfs-nfs-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6-tests.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-lang-2.6.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guava-11.0.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jsr305-3.0.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/usr/local/hadoop/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-cli-1.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/activation-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/servlet-api-2.5.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-codec-1.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-client-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-json-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jettison-1.1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/usr/local/hadoop/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/usr/local/hadoop/share/hadoop/yarn/lib/jetty-6.1.26.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-api-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-common-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-common-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-tests-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-client-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-server-sharedcachemanager-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.7.3.jar:/usr/local/hadoop/share/hadoop/yarn/hadoop-yarn-registry-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/xz-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hadoop-annotations-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/asm-3.2.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/javax.inject-1.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/junit-4.11.jar:/usr/local/hadoop/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar:/usr/local/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.7.3-tests.jar:/usr/local/hadoop/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = https://git-wip-us.apache.org/repos/asf/hadoop.git -r baa91f7c6bc9cb92be5982de4719c1c8af91ccff; compiled by 'root' on 2016-08-18T01:41Z
STARTUP_MSG:   java = 1.8.0_181
************************************************************/
18/10/03 21:05:52 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
18/10/03 21:05:52 INFO namenode.NameNode: createNameNode [-format]
Formatting using clusterid: CID-54d602ae-8c60-49f4-bcb9-8a687ba97501
18/10/03 21:05:52 INFO namenode.FSNamesystem: No KeyProvider found.
18/10/03 21:05:52 INFO namenode.FSNamesystem: fsLock is fair:true
18/10/03 21:05:52 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
18/10/03 21:05:52 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
18/10/03 21:05:52 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
18/10/03 21:05:52 INFO blockmanagement.BlockManager: The block deletion will start around 2018 十月 03 21:05:52
18/10/03 21:05:52 INFO util.GSet: Computing capacity for map BlocksMap
18/10/03 21:05:52 INFO util.GSet: VM type       = 64-bit
18/10/03 21:05:52 INFO util.GSet: 2.0% max memory 966.7 MB = 19.3 MB
18/10/03 21:05:52 INFO util.GSet: capacity      = 2^21 = 2097152 entries
18/10/03 21:05:52 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
18/10/03 21:05:52 INFO blockmanagement.BlockManager: defaultReplication         = 1
18/10/03 21:05:52 INFO blockmanagement.BlockManager: maxReplication             = 512
18/10/03 21:05:52 INFO blockmanagement.BlockManager: minReplication             = 1
18/10/03 21:05:52 INFO blockmanagement.BlockManager: maxReplicationStreams      = 2
18/10/03 21:05:52 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
18/10/03 21:05:52 INFO blockmanagement.BlockManager: encryptDataTransfer        = false
18/10/03 21:05:52 INFO blockmanagement.BlockManager: maxNumBlocksToLog          = 1000
18/10/03 21:05:52 INFO namenode.FSNamesystem: fsOwner             = hadoop (auth:SIMPLE)
18/10/03 21:05:52 INFO namenode.FSNamesystem: supergroup          = supergroup
18/10/03 21:05:52 INFO namenode.FSNamesystem: isPermissionEnabled = true
18/10/03 21:05:52 INFO namenode.FSNamesystem: HA Enabled: false
18/10/03 21:05:52 INFO namenode.FSNamesystem: Append Enabled: true
18/10/03 21:05:52 INFO util.GSet: Computing capacity for map INodeMap
18/10/03 21:05:52 INFO util.GSet: VM type       = 64-bit
18/10/03 21:05:52 INFO util.GSet: 1.0% max memory 966.7 MB = 9.7 MB
18/10/03 21:05:52 INFO util.GSet: capacity      = 2^20 = 1048576 entries
18/10/03 21:05:52 INFO namenode.FSDirectory: ACLs enabled? false
18/10/03 21:05:52 INFO namenode.FSDirectory: XAttrs enabled? true
18/10/03 21:05:52 INFO namenode.FSDirectory: Maximum size of an xattr: 16384
18/10/03 21:05:52 INFO namenode.NameNode: Caching file names occuring more than 10 times
18/10/03 21:05:53 INFO util.GSet: Computing capacity for map cachedBlocks
18/10/03 21:05:53 INFO util.GSet: VM type       = 64-bit
18/10/03 21:05:53 INFO util.GSet: 0.25% max memory 966.7 MB = 2.4 MB
18/10/03 21:05:53 INFO util.GSet: capacity      = 2^18 = 262144 entries
18/10/03 21:05:53 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
18/10/03 21:05:53 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
18/10/03 21:05:53 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension     = 30000
18/10/03 21:05:53 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
18/10/03 21:05:53 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
18/10/03 21:05:53 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
18/10/03 21:05:53 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
18/10/03 21:05:53 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
18/10/03 21:05:53 INFO util.GSet: Computing capacity for map NameNodeRetryCache
18/10/03 21:05:53 INFO util.GSet: VM type       = 64-bit
18/10/03 21:05:53 INFO util.GSet: 0.029999999329447746% max memory 966.7 MB = 297.0 KB
18/10/03 21:05:53 INFO util.GSet: capacity      = 2^15 = 32768 entries
18/10/03 21:05:53 INFO namenode.FSImage: Allocated new BlockPoolId: BP-938082284-192.168.33.100-1538571953311
18/10/03 21:05:53 INFO common.Storage: Storage directory /usr/local/hadoop/hadoopdata/namenode has been successfully formatted.
18/10/03 21:05:53 INFO namenode.FSImageFormatProtobuf: Saving image file /usr/local/hadoop/hadoopdata/namenode/current/fsimage.ckpt_0000000000000000000 using no compression
18/10/03 21:05:53 INFO namenode.FSImageFormatProtobuf: Image file /usr/local/hadoop/hadoopdata/namenode/current/fsimage.ckpt_0000000000000000000 of size 353 bytes saved in 0 seconds.
18/10/03 21:05:53 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
18/10/03 21:05:53 INFO util.ExitUtil: Exiting with status 0
18/10/03 21:05:53 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master100/192.168.33.100
************************************************************/

启动

执行命令：

start-all.sh#或者是使用如下两条命令启动hadoop,第一条命令实际上操作的就是下面两条命令
start-dfs.sh
start-yarn.sh

出现如下信息：

[hadoop@master100 hadoop]$ start-all.sh#执行上述命令会出现如下信息
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [localhost]
localhost: starting namenode, logging to /usr/local/hadoop/logs/hadoop-hadoop-namenode-master100.out
localhost: starting datanode, logging to /usr/local/hadoop/logs/hadoop-hadoop-datanode-master100.out
Starting secondary namenodes [0.0.0.0]
The authenticity of host '0.0.0.0 (0.0.0.0)' can't be established.
ECDSA key fingerprint is SHA256:smnjN2nAXE9l/kx1fQ2r3KBQt14TMjgaVlh+65clSrA.
ECDSA key fingerprint is MD5:75:f5:c8:d0:06:c2:c8:0d:25:8b:b9:d5:47:8c:3a:f5.#到这里时注意输入yes后回车
Are you sure you want to continue connecting (yes/no)? yes
0.0.0.0: Warning: Permanently added '0.0.0.0' (ECDSA) to the list of known hosts.
0.0.0.0: starting secondarynamenode, logging to /usr/local/hadoop/logs/hadoop-hadoop-secondarynamenode-master100.out
starting yarn daemons
starting resourcemanager, logging to /usr/local/hadoop/logs/yarn-hadoop-resourcemanager-master100.out
localhost: starting nodemanager, logging to /usr/local/hadoop/logs/yarn-hadoop-nodemanager-master100.out

查看启动的进程：

jps

出现如下进程说明安装并启动成功

[hadoop@master100 hadoop]$ jps
6566 NameNode
7399 Jps
6664 DataNode
7016 ResourceManager
7114 NodeManager
6862 SecondaryNameNode

可以进入如下网页查看与

192.168.33.100:50070

192.168.33.100:8088

关闭

[hadoop@master100 sbin]$ stop-all.shThis script is Deprecated. Instead use stop-dfs.sh and stop-yarn.sh
Stopping namenodes on [localhost]
localhost: stopping namenode
localhost: stopping datanode
Stopping secondary namenodes [0.0.0.0]
0.0.0.0: stopping secondarynamenode
stopping yarn daemons
stopping resourcemanager
localhost: stopping nodemanager
no proxyserver to stop