在Windows中安装Hadoop
操作系统：Windows 10
Hadoop版本:hadoop-2.7.3
JDK版本：jdk-8u181-windows-x64.exe
配置Java环境变量
Hadoop底层实现语言是Java，所以我们在运行Hadoop时是需要Java运行环境的。
下载好jdk之后按照提示安装，这里就不演示了，安装完成之后在DOS命令窗(运行cmd)输入:
java -version看到如下版本信息说明安装成功：
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)安装完成之后手动配置一下Java环境变量：
变量名： JAVA_HOME
变量值：C:\Program Files\Java\jdk1.8.0_181
变量值为jdk的安装路径
变量名：CLASSPATH
变量值：.;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;
编辑Path变量，在里面新建：
%JAVA_HOME%\bin
%JAVA_HOME%\jre\bin
Hadoop配置
1、下载Hadoop安装包：hadoop-2.7.3
2、下载Windows配置文件
https://github.com/PengShuaixin/hadoop-2.7.3_windows.git
3、用GitHub下载的配置文件替换掉第一步在官方下载的安装包中的bin和etc文件夹
ps：这里我也上传了一份已经配置好的包，解压即可直接使用，不用进行[1-3]的配置。该资源虽然已经免积分下载，但是仍然需要csdn账号，没账号的自己按1-3配置一下，百度网盘下载资源速度太慢，这里就不贴链接了。
4、 打开Hadoop文件夹下的\etc\hadoop目录对配置文件进行修改，
hadoop-env.cmd
找到如下代码（26行），将路径修改为你自己的JAVA_HOME路径
set JAVA_HOME=C:\PROGRA~1\Java\jdk1.8.0_181
注意：这里带空格的文件夹名需要用软链代替，否则会报错。
在下面这篇博文中有对常见错误的处理方法，在安装完成后出现报错可参考解决：
在Windows中安装Hadoop常见错误解决方法
hdfs-site.xml
<configuration> <property> <name>dfs.replication</name> <value>1</value> </property> <property> <name>dfs.namenode.name.dir</name> <value>file:/D:/hadoopdata/namenode</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>file:/D:/hadoopdata/datanode</value> </property> </configuration>
namenode的文件路径：
D:/hadoopdata/namenode
datanode的文件路径：
D:/hadoopdata/datanode
可以根据自己的实际情况修改
core-site.xml
<configuration> <property> <name>fs.defaultFS</name> <value>hdfs://localhost:9000</value> </property> </configuration>
mapred-site.xml
<configuration> <property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> </configuration>
yarn-site.xml
<configuration> <property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle</value> </property> <property> <name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name> <value>org.apache.hadoop.mapred.ShuffleHandler</value> </property> </configuration>
5、将Hadoop文件夹\bin下的hadoop.dll复制到C:\Windows\System32
Hadoop环境变量配置
和上述JAVA环境变量配置方法一样
新建系统环境变量
变量名：HADOOP_HOME
变量值：D:\hadoop-2.7.3
（变量值根据自己实际安装目录填写）
编辑Path变量，新建：
%HADOOP_HOME%\bin
%HADOOP_HOME%\sbin
环境变量测试
C:\Users\Niclas>hadoop
Usage: hadoop [--config confdir] [--loglevel loglevel] COMMAND
where COMMAND is one of:
fs run a generic filesystem user client
version print the version
jar <jar> run a jar file
note: please use "yarn jar" to launch
YARN applications, not this command.
checknative [-a|-h] check native hadoop and compression libraries availability
distcp <srcurl> <desturl> copy file or directories recursively
archive -archiveName NAME -p <parent path> <src>* <dest> create a hadoop archive
classpath prints the class path needed to get the
Hadoop jar and the required libraries
credential interact with credential providers
key manage keys via the KeyProvider
daemonlog get/set the log level for each daemon
or
CLASSNAME run the class named CLASSNAME
Most commands print help when invoked w/o parameters.
C:\Users\Niclas>hadoop -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)DOS命令输入hadoop和hadoop -version出现上述界面说明Hadoop环境变量配置成功
初始化HDFS
运行如下命令：
hdfs namenode -format
出现如下代码块：
18/10/01 11:20:24 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = DESKTOP-28UR3P0/192.168.17.1
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 2.7.3
STARTUP_MSG: classpath = D:\hadoop-2.7.3\etc\hadoop;D:\hadoop-2.7.3\share\hadoop\common\lib\activation-1.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\apacheds-i18n-2.0.0-M15.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\apacheds-kerberos-codec-2.0.0-M15.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\api-asn1-api-1.0.0-M20.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\api-util-1.0.0-M20.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\asm-3.2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\avro-1.7.4.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-beanutils-1.7.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-beanutils-core-1.8.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-cli-1.2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-codec-1.4.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-collections-3.2.2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-compress-1.4.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-configuration-1.6.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-digester-1.8.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-httpclient-3.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-io-2.4.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-lang-2.6.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-logging-1.1.3.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-math3-3.1.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\commons-net-3.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\curator-client-2.7.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\curator-framework-2.7.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\curator-recipes-2.7.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\gson-2.2.4.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\guava-11.0.2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\hadoop-annotations-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\hadoop-auth-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\hamcrest-core-1.3.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\htrace-core-3.1.0-incubating.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\httpclient-4.2.5.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\httpcore-4.2.5.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jackson-core-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jackson-jaxrs-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jackson-mapper-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jackson-xc-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\java-xmlbuilder-0.4.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jaxb-api-2.2.2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jaxb-impl-2.2.3-1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jersey-core-1.9.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jersey-json-1.9.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jersey-server-1.9.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jets3t-0.9.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jettison-1.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jetty-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jetty-util-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jsch-0.1.42.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jsp-api-2.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\jsr305-3.0.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\junit-4.11.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\log4j-1.2.17.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\mockito-all-1.8.5.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\netty-3.6.2.Final.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\paranamer-2.3.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\protobuf-java-2.5.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\servlet-api-2.5.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\slf4j-api-1.7.10.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\slf4j-log4j12-1.7.10.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\snappy-java-1.0.4.1.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\stax-api-1.0-2.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\xmlenc-0.52.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\xz-1.0.jar;D:\hadoop-2.7.3\share\hadoop\common\lib\zookeeper-3.4.6.jar;D:\hadoop-2.7.3\share\hadoop\common\hadoop-common-2.7.3-tests.jar;D:\hadoop-2.7.3\share\hadoop\common\hadoop-common-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\common\hadoop-nfs-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\hdfs;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\asm-3.2.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-cli-1.2.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-codec-1.4.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-daemon-1.0.13.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-io-2.4.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-lang-2.6.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\commons-logging-1.1.3.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\guava-11.0.2.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\htrace-core-3.1.0-incubating.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jackson-core-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jackson-mapper-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jersey-core-1.9.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jersey-server-1.9.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jetty-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jetty-util-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\jsr305-3.0.0.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\leveldbjni-all-1.8.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\log4j-1.2.17.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\netty-3.6.2.Final.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\netty-all-4.0.23.Final.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\protobuf-java-2.5.0.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\servlet-api-2.5.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\xercesImpl-2.9.1.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\xml-apis-1.3.04.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\lib\xmlenc-0.52.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\hadoop-hdfs-2.7.3-tests.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\hadoop-hdfs-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\hdfs\hadoop-hdfs-nfs-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\activation-1.1.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\aopalliance-1.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\asm-3.2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-cli-1.2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-codec-1.4.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-collections-3.2.2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-compress-1.4.1.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-io-2.4.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-lang-2.6.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\commons-logging-1.1.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\guava-11.0.2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\guice-3.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\guice-servlet-3.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jackson-core-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jackson-jaxrs-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jackson-mapper-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jackson-xc-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\javax.inject-1.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jaxb-api-2.2.2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jaxb-impl-2.2.3-1.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jersey-client-1.9.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jersey-core-1.9.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jersey-guice-1.9.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jersey-json-1.9.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jersey-server-1.9.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jettison-1.1.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jetty-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jetty-util-6.1.26.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\jsr305-3.0.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\leveldbjni-all-1.8.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\log4j-1.2.17.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\netty-3.6.2.Final.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\protobuf-java-2.5.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\servlet-api-2.5.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\stax-api-1.0-2.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\xz-1.0.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\zookeeper-3.4.6-tests.jar;D:\hadoop-2.7.3\share\hadoop\yarn\lib\zookeeper-3.4.6.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-api-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-applications-distributedshell-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-applications-unmanaged-am-launcher-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-client-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-common-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-registry-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-applicationhistoryservice-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-common-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-nodemanager-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-resourcemanager-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-sharedcachemanager-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-tests-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\yarn\hadoop-yarn-server-web-proxy-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\aopalliance-1.0.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\asm-3.2.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\avro-1.7.4.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\commons-compress-1.4.1.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\commons-io-2.4.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\guice-3.0.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\guice-servlet-3.0.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\hadoop-annotations-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\hamcrest-core-1.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\jackson-core-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\jackson-mapper-asl-1.9.13.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\javax.inject-1.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\jersey-core-1.9.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\jersey-guice-1.9.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\jersey-server-1.9.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\junit-4.11.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\leveldbjni-all-1.8.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\log4j-1.2.17.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\netty-3.6.2.Final.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\paranamer-2.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\protobuf-java-2.5.0.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\snappy-java-1.0.4.1.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\lib\xz-1.0.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-app-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-common-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-core-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-hs-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-hs-plugins-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-jobclient-2.7.3-tests.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-jobclient-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-client-shuffle-2.7.3.jar;D:\hadoop-2.7.3\share\hadoop\mapreduce\hadoop-mapreduce-examples-2.7.3.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
************************************************************/
18/10/01 11:20:24 INFO namenode.NameNode: createNameNode [-format]
Formatting using clusterid: CID-3518aff7-1d9d-48a2-87f5-451ff0b750a5
18/10/01 11:20:25 INFO namenode.FSNamesystem: No KeyProvider found.
18/10/01 11:20:25 INFO namenode.FSNamesystem: fsLock is fair:true
18/10/01 11:20:25 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
18/10/01 11:20:25 INFO blockmanagement.DatanodeManager: dfs.namenode.datanode.registration.ip-hostname-check=true
18/10/01 11:20:25 INFO blockmanagement.BlockManager: dfs.namenode.startup.delay.block.deletion.sec is set to 000:00:00:00.000
18/10/01 11:20:25 INFO blockmanagement.BlockManager: The block deletion will start around 2018 十月 01 11:20:25
18/10/01 11:20:25 INFO util.GSet: Computing capacity for map BlocksMap
18/10/01 11:20:25 INFO util.GSet: VM type = 64-bit
18/10/01 11:20:25 INFO util.GSet: 2.0% max memory 889 MB = 17.8 MB
18/10/01 11:20:25 INFO util.GSet: capacity = 2^21 = 2097152 entries
18/10/01 11:20:25 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
18/10/01 11:20:25 INFO blockmanagement.BlockManager: defaultReplication = 1
18/10/01 11:20:25 INFO blockmanagement.BlockManager: maxReplication = 512
18/10/01 11:20:25 INFO blockmanagement.BlockManager: minReplication = 1
18/10/01 11:20:25 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
18/10/01 11:20:25 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
18/10/01 11:20:25 INFO blockmanagement.BlockManager: encryptDataTransfer = false
18/10/01 11:20:25 INFO blockmanagement.BlockManager: maxNumBlocksToLog = 1000
18/10/01 11:20:25 INFO namenode.FSNamesystem: fsOwner = Niclas (auth:SIMPLE)
18/10/01 11:20:25 INFO namenode.FSNamesystem: supergroup = supergroup
18/10/01 11:20:25 INFO namenode.FSNamesystem: isPermissionEnabled = true
18/10/01 11:20:25 INFO namenode.FSNamesystem: HA Enabled: false
18/10/01 11:20:25 INFO namenode.FSNamesystem: Append Enabled: true
18/10/01 11:20:26 INFO util.GSet: Computing capacity for map INodeMap
18/10/01 11:20:26 INFO util.GSet: VM type = 64-bit
18/10/01 11:20:26 INFO util.GSet: 1.0% max memory 889 MB = 8.9 MB
18/10/01 11:20:26 INFO util.GSet: capacity = 2^20 = 1048576 entries
18/10/01 11:20:26 INFO namenode.FSDirectory: ACLs enabled? false
18/10/01 11:20:26 INFO namenode.FSDirectory: XAttrs enabled? true
18/10/01 11:20:26 INFO namenode.FSDirectory: Maximum size of an xattr: 16384
18/10/01 11:20:26 INFO namenode.NameNode: Caching file names occuring more than 10 times
18/10/01 11:20:26 INFO util.GSet: Computing capacity for map cachedBlocks
18/10/01 11:20:26 INFO util.GSet: VM type = 64-bit
18/10/01 11:20:26 INFO util.GSet: 0.25% max memory 889 MB = 2.2 MB
18/10/01 11:20:26 INFO util.GSet: capacity = 2^18 = 262144 entries
18/10/01 11:20:26 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
18/10/01 11:20:26 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
18/10/01 11:20:26 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000
18/10/01 11:20:26 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.window.num.buckets = 10
18/10/01 11:20:26 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.num.users = 10
18/10/01 11:20:26 INFO metrics.TopMetrics: NNTop conf: dfs.namenode.top.windows.minutes = 1,5,25
18/10/01 11:20:26 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
18/10/01 11:20:26 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time is 600000 millis
18/10/01 11:20:26 INFO util.GSet: Computing capacity for map NameNodeRetryCache
18/10/01 11:20:26 INFO util.GSet: VM type = 64-bit
18/10/01 11:20:26 INFO util.GSet: 0.029999999329447746% max memory 889 MB = 273.1 KB
18/10/01 11:20:26 INFO util.GSet: capacity = 2^15 = 32768 entries
18/10/01 11:20:26 INFO namenode.FSImage: Allocated new BlockPoolId: BP-301588983-192.168.17.1-1538364026657
18/10/01 11:20:26 INFO common.Storage: Storage directory D:\hadoopdata\namenode has been successfully formatted.
18/10/01 11:20:26 INFO namenode.FSImageFormatProtobuf: Saving image file D:\hadoopdata\namenode\current\fsimage.ckpt_0000000000000000000 using no compression
18/10/01 11:20:26 INFO namenode.FSImageFormatProtobuf: Image file D:\hadoopdata\namenode\current\fsimage.ckpt_0000000000000000000 of size 353 bytes saved in 0 seconds.
18/10/01 11:20:27 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
18/10/01 11:20:27 INFO util.ExitUtil: Exiting with status 0
18/10/01 11:20:27 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at DESKTOP-28UR3P0/192.168.17.1
************************************************************/
看到下面这句说明初始化成功：
18/10/01 11:20:26 INFO common.Storage: Storage directory D:\hadoopdata\namenode has been successfully formatted.启动Hadoop
启动Hadoop
start-all出现如下四个黑框说明成功启动进程：
namenode
datanode
resourcemanager
nodemanager
使用＂jps＂命令可以看到进程信息，如下：
C:\Users\Niclas>jps
9392 DataNode
30148 NameNode
35156 Jps
5284 ResourceManager
31324 NodeManager进入网页查看：
localhost:50070
localhost:8088
关闭Hadoop
stop-allC:\Users\Niclas>stop-all
This script is Deprecated. Instead use stop-dfs.cmd and stop-yarn.cmd
成功: 给进程发送了终止信号，进程的 PID 为 15300。
成功: 给进程发送了终止信号，进程的 PID 为 31276。
stopping yarn daemons
成功: 给进程发送了终止信号，进程的 PID 为 7032。
成功: 给进程发送了终止信号，进程的 PID 为 32596。
信息: 没有运行的带有指定标准的任务。常见错误解决方法
在Windows中安装Hadoop常见错误解决方法
本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
