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ubuntu中安装hadoop集群

蓝色雨全 转载 编程分享 2018-01-26

简介 z ; hadoop-2.6.5.tar.gz 3. 配置环境:3台虚拟机 master:192.16


hadoop是由java 语言编写的主从结构分布式计算存储架构

准备工作:

  1. 操作系统: Ubuntu16.04

  2. 软件安装包:jdk-8u171-linux-x64.tar.gz ; hadoop-2.6.5.tar.gz

  3. 配置环境:3台虚拟机

             master:192.168.122.10
             node1 :192.168.122.11
             node1 :192.168.122.12
    
  • 前提条件:三台虚拟机已经配置过SSH和主机名,如果没有,请自行百度配置。

第一步:安装jdk

因为hadoop是由java编写的,所以底层需要依赖java环境, jdk下载地址,可选择合适的版本 http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

在master上操作

1.下载jdk

用wget下载,如下

root@master:/opt/tarId wget http://download.oracle.com/otn-pub/java/jdk/8u171-b11/512cd62ec5174c3487ac17c61aaa89e8/jdk-8u171-linux-x64.tar.gz
root@master:/opt/tarId l
jdk-8u171-linux-x64.tar.gz

2.解压tar包

可以自己先创一个目录来解压方便以后管理,这次我就解压在opt目录下

root@master:/opt/tarId tar -zxvf jdk-8u171-linux-x64.tar.gz -C /opt/

root@master:/optId l
jdk1.8.0_171/

3.将jdk添加到环境变量中

root@master:/optId vim /etc/profile

在文件末尾添加

export JAVA_HOME=/opt/jdk1.8.0_171
export PATH=$PATH:$JAVA_HOME/bin

4.刷新环境变量文件

root@master:/optId echo $JAVA_HOME       Id没刷新前的结果为空

root@master:/optId source  /etc/profile  Id刷新
root@master:/optId echo $JAVA_HOME
/opt/jdk1.8.0_171
root@master:/optId java -version         Id看java版本
openjdk version "1.8.0_171"
OpenJDK Runtime Environment (build 1.8.0_171-8u171-b11-0ubuntu0.16.04.1-b11)
OpenJDK 64-Bit Server VM (build 25.171-b11, mixed mode)
  • 到这里master的上面的jdk就安装好了 接下来就是将从节点上也安装,这里就可以将master上解压好和修改好的/etc/profile文件直接拷贝到从节点上了,这样比较方便,不然还得重复配置。

  • 这里我还是将jdk放在从节点的/opt目录下

root@master:/optId scp -r jdk1.8.0_171/ node1:/opt       Id拷贝jdk到node1
root@master:/optId scp -r jdk1.8.0_171/ node2:/opt       Id拷贝jdk到node2

root@master:/optId scp -r /etc/profile node1:/etc/       Id拷贝环境变量文件到node1
root@master:/optId scp -r /etc/profile node2:/etc/       Id拷贝环境变量文件到node2

在node1和node2上执行

source  /etc/profile  Id刷新
  • 到这里三台虚拟机的JDK就全部安装好了!

第二步:安装hadoop

从网站 http://hadoop.apache.org/releases.html 找到合适的hadoop的二进制版本,本次我用的是2.6.5

1. 下载

root@master:/opt/tarId wget http://www-eu.apache.org/dist/hadoop/common/hadoop-2.6.5/hadoop-2.6.5.tar.gz

2.解压

root@master:/opt/tarId tar -zxvf hadoop-2.6.5.tar.gz -C /opt/

root@master:/optId l
hadoop-2.6.5/ jdk1.8.0_171/

3.修改配置文件

进入/opt/hadoop-2.6.5/etc/hadoop目录下,这里面都是配置文件

root@master:/opt/hadoop-2.6.5/etc/hadoopId l
capacity-scheduler.xml  hadoop-env.sh               httpfs-env.sh            kms-env.sh            mapred-env.sh               ssl-server.xml.example
configuration.xsl       hadoop-metrics2.properties  httpfs-log4j.properties  kms-log4j.properties  mapred-queues.xml.template  yarn-env.cmd
container-executor.cfg  hadoop-metrics.properties   httpfs-signature.secret  kms-site.xml          mapred-site.xml.template    yarn-env.sh
core-site.xml           hadoop-policy.xml           httpfs-site.xml          log4j.properties      slaves                      yarn-site.xml
hadoop-env.cmd          hdfs-site.xml               kms-acls.xml             mapred-env.cmd        ssl-client.xml.example

1.修改hadoop-env.sh

里面是启动的脚本文件,将jdk导入

root@master:/opt/hadoop-2.6.5/etc/hadoopId echo $JAVA_HOME   Id获取jdk据对路径
/opt/jdk1.8.0_171
root@master:/opt/hadoop-2.6.5/etc/hadoopId vim hadoop-env.sh

写入export JAVA_HOME=/opt/jdk1.8.0_171保存退出

2.修改core-site.xml

核心配置文件

root@master:/opt/hadoop-2.6.5/etc/hadoopId vim core-site.xml

写入

<configuration>
<!--NameNode的地址-->
<property>
  <name>fs.defaultFS</name>
  <value>hdfs://master:9000</value>
</property>
<!--HDFS保存数据块、元信息和日志的目录-->
<property>
  <name>hadoop.tmp.dir</name>
  <value>file:/opt/hadoop-2.6.5/hadooptmp</value>
</property>
</configuration>

里面内容以key-value形式书写,规定hadoop的默认文件系统为hdfs以对应的路径和端口(9000)。hadoop产生的临时文件存放地址(/opt/hadoop-2.6.5/hadooptmp)

3.hdfs-site.xml

这个文件不配置也行,就会用默认值,配置了就根据配置的内容来

root@master:/opt/hadoop-2.6.5/etc/hadoopId vim hdfs-site.xml
<configuration>
<!--namenode产生的临时文件保存地址-->
<property>
    <name>dfs.namenode.name.dir</name>
    <value>file:/opt/hadoop-2.6.5/hadooptmp</value>
</property>
<!--datanode产生的临时文件保存地址-->
<property>
    <name>dfs.datanode.data.dir</name>
    <value>file:/opt/hadoop-2.6.5/haooptmp</value>
</property>
<!--数据块的冗余度(副本),默认:3-->
<property>
    <name>dfs.replication</name>
    <value>1</value>
</property>
</configuration>

在这里面我配置了hdfs文件的副本数,默认为3份,但因为我的虚拟机空间不足,这里就配置了1份。大家也可以根据实际要求进行配置。

4.mapred-site.xml

这个文件是没有的,只提供一个tmp文件

root@master:/opt/hadoop-2.6.5/etc/hadoopId cp mapred-site.xml.template mapred-site.xml
root@master:/opt/hadoop-2.6.5/etc/hadoopId vim mapred-site.xml
<configuration>
<!--MapReduce运行的框架-->
<property>
  <name>mapreduce.framework.name</name>
  <value>yarn</value>
</property>
</configuration>

mapreduce平行平台的名称(这里指定为yarn)

5.yarn-site.xml

root@master:/opt/hadoop-2.6.5/etc/hadoopId vim yarn-site.xml
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<!--ResourceManager的地址-->
  <name>yarn.resourcemanager.hostname</name>
  <value>master</value>
</property>
<!--MapReduce运行的方式是:shuffle-->
<property>
  <name>yarn.nodemanager.aux-services</name>
  <value>mapreduce_shuffle</value>
</property>
</configuration>

这里面配置yarn的resourcemanager在哪个节点上运行(这里我I设置为master),和yarn需要的shuffle服务。

  • 到这里master上的hadoop就配置好了,接下来就这这个hadoop文件复制到从节点上
root@master:/optId scp -r hadoop-2.6.5/ node1:/opt/
root@master:/optId scp -r hadoop-2.6.5/ node2:/opt/

2. 为Hadoop添加环境变量

输入命令:vim /etc/profile

添加如下内容: export HADOOP_HOME=/opt/hadoop-2.6.5 export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin

刷新

source  /etc/profile  Id刷新
  • 将这些内容也写到从节点的文件下,或者通过scp传过去 从节点刷新。

3. 配置slaves

root@master:/opt/hadoop-2.6.5/etc/hadoopId vim slaves

  • 如图所示配置意味着master节点此时既充当主节点也充当从节点(这样可以少开一个虚拟机,节省资源,服务器性能好可以不这样做)

4. 格式化文件系统

输入命令:hdfs namenode -format 看到高亮语句证明格式化成功! Storage directory /root/training/hadoop-2.6.5/hadooptmp has been successfully formatted.

安装成功!

测试

启动namenode

root@master:/opt/hadoop-2.6.5/sbinId hadoop-daemon.sh start namenode
starting namenode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-namenode-master.out
root@master:/opt/hadoop-2.6.5/sbinId jps
2420 NameNode
3406 Jps

成功!其中hadoop-daemon.sh是一个启动脚本

关闭namenode

root@master:/opt/hadoop-2.6.5/sbinId hadoop-daemon.sh stop namenode
stopping namenode
root@master:/opt/hadoop-2.6.5/sbinId jps
11754 Jps

一键启动所有节点(集群) namenode+datanode

主节点

root@master:/opt/hadoop-2.6.5/etc/hadoopId start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [master]
master: starting namenode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-namenode-master.out
node1: starting datanode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-datanode-node1.out
node2: starting datanode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-datanode-node2.out
localhost: starting datanode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-datanode-master.out
Starting secondary namenodes [0.0.0.0]
0.0.0.0: starting secondarynamenode, logging to /opt/hadoop-2.6.5/logs/hadoop-root-secondarynamenode-master.out
starting yarn daemons
starting resourcemanager, logging to /opt/hadoop-2.6.5/logs/yarn-root-resourcemanager-master.out
node1: starting nodemanager, logging to /opt/hadoop-2.6.5/logs/yarn-root-nodemanager-node1.out
node2: starting nodemanager, logging to /opt/hadoop-2.6.5/logs/yarn-root-nodemanager-node2.out
localhost: starting nodemanager, logging to /opt/hadoop-2.6.5/logs/yarn-root-nodemanager-master.out


root@master:/opt/hadoop-2.6.5/etc/hadoopId jps
14961 ResourceManager
15204 NodeManager
13125 NameNode
16188 Jps

从节点查

root@node1:/optId jps
20656 NodeManager
19927 DataNode
21660 Jps
root@node2:~Id jps
17553 DataNode
19514 Jps
18314 NodeManager

成功!

在hdfs中创建一个目录firstTestDir

root@master:/opt/hadoop-2.6.5/hadooptmpId hadoop dfs -ls /            Id查看原始状态下的目录(没有)
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

root@master:/opt/hadoop-2.6.5/hadooptmpId hadoop dfs -mkdir /firstTestDir        Id创建目录
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

root@master:/opt/hadoop-2.6.5/hadooptmpId hadoop dfs -ls /        Id查看目录,已经存在
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

Found 1 items
drwxr-xr-x   - root supergroup          0 2018-05-13 21:13 /firstTestDir

向这个目录下上传文件

这里我将root下的a.txt文件上传为例

root@master:~Id l
a.txt 
root@master:~Id hadoop dfs -put ./a.txt /firstTestDir            Id上传文件a.txt
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

root@master:~Id hadoop dfs -ls /firstTestDir        Id查看是否成功,ok!
DEPRECATED: Use of this script to execute hdfs command is deprecated.
Instead use the hdfs command for it.

Found 1 items
-rw-r--r--   1 root supergroup      22002 2018-05-13 21:14 /firstTestDir/a.txt

运行wordcount

详情见这里

UI查询

访问 HDFS的Web Console:http://master:50070

访问 Yarn的Web Console:http://master:8088

关闭所有组件

root@master:/opt/hadoop-2.6.5/etc/hadoopId stop-all.sh

可能遇到的问题:

1.格式化时出现问题

root@master:/opt/hadoop-2.6.5/etc/hadoopId hdfs namenode –format
18/05/12 20:50:16 INFO namenode.NameNode: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG:   host = localhost/127.0.0.1
STARTUP_MSG:   args = [–format]
STARTUP_MSG:   version = 2.6.5
STARTUP_MSG:   classpath = /opt/hadoop-2.6.5/etc/hadoop:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-httpclient-3.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/stax-api-1.0-2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/avro-1.7.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jackson-jaxrs-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/snappy-java-1.0.4.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/httpclient-4.2.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/httpcore-4.2.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/slf4j-api-1.7.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/zookeeper-3.4.6.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/guava-11.0.2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jackson-mapper-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/mockito-all-1.8.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jersey-core-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-compress-1.4.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jetty-util-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-cli-1.2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jasper-runtime-5.5.23.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/hadoop-auth-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/activation-1.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/xz-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/curator-recipes-2.6.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jaxb-impl-2.2.3-1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-logging-1.1.3.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jetty-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-collections-3.2.2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/paranamer-2.3.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/servlet-api-2.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jaxb-api-2.2.2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jersey-server-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jettison-1.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-beanutils-1.7.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jersey-json-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/protobuf-java-2.5.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/log4j-1.2.17.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/slf4j-log4j12-1.7.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/api-asn1-api-1.0.0-M20.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jets3t-0.9.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-beanutils-core-1.8.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/junit-4.11.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/htrace-core-3.0.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/asm-3.2.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jsr305-1.3.9.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/java-xmlbuilder-0.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jasper-compiler-5.5.23.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-codec-1.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/curator-framework-2.6.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/apacheds-i18n-2.0.0-M15.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-configuration-1.6.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/api-util-1.0.0-M20.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-lang-2.6.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-math3-3.1.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jsch-0.1.42.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-el-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/netty-3.6.2.Final.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/curator-client-2.6.0.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jsp-api-2.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jackson-xc-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/jackson-core-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-io-2.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/hadoop-annotations-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/gson-2.2.4.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-digester-1.8.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/xmlenc-0.52.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/hamcrest-core-1.3.jar:/opt/hadoop-2.6.5/share/hadoop/common/lib/commons-net-3.1.jar:/opt/hadoop-2.6.5/share/hadoop/common/hadoop-nfs-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/hadoop-common-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/common/hadoop-common-2.6.5-tests.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/guava-11.0.2.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jackson-mapper-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jersey-core-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jetty-util-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-cli-1.2.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jasper-runtime-5.5.23.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-logging-1.1.3.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jetty-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-daemon-1.0.13.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/xml-apis-1.3.04.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/servlet-api-2.5.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jersey-server-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/protobuf-java-2.5.0.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/log4j-1.2.17.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/htrace-core-3.0.4.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/asm-3.2.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jsr305-1.3.9.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/xercesImpl-2.9.1.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-codec-1.4.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-lang-2.6.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-el-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/netty-3.6.2.Final.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jsp-api-2.1.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/jackson-core-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/commons-io-2.4.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/lib/xmlenc-0.52.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-2.6.5-tests.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/hdfs/hadoop-hdfs-nfs-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-httpclient-3.1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/stax-api-1.0-2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-jaxrs-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/zookeeper-3.4.6.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/guava-11.0.2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-mapper-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-core-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-compress-1.4.1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jetty-util-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-cli-1.2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/activation-1.1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/xz-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jaxb-impl-2.2.3-1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-logging-1.1.3.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jetty-6.1.26.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-collections-3.2.2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/servlet-api-2.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jaxb-api-2.2.2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-server-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jettison-1.1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-json-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jline-0.9.94.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/protobuf-java-2.5.0.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/log4j-1.2.17.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/guice-3.0.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/asm-3.2.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-guice-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jsr305-1.3.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/leveldbjni-all-1.8.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jersey-client-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-codec-1.4.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/guice-servlet-3.0.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-lang-2.6.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/netty-3.6.2.Final.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/aopalliance-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-xc-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/jackson-core-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/commons-io-2.4.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/lib/javax.inject-1.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-resourcemanager-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-web-proxy-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-api-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-applications-distributedshell-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-applicationhistoryservice-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-common-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-applications-unmanaged-am-launcher-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-client-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-common-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-tests-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-server-nodemanager-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/yarn/hadoop-yarn-registry-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/avro-1.7.4.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/snappy-java-1.0.4.1.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/jackson-mapper-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-core-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/commons-compress-1.4.1.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/xz-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/paranamer-2.3.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-server-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/protobuf-java-2.5.0.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/log4j-1.2.17.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/guice-3.0.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/junit-4.11.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/asm-3.2.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/jersey-guice-1.9.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/leveldbjni-all-1.8.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/guice-servlet-3.0.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/netty-3.6.2.Final.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/aopalliance-1.0.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/jackson-core-asl-1.9.13.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/commons-io-2.4.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/hadoop-annotations-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/hamcrest-core-1.3.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/lib/javax.inject-1.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-2.6.5-tests.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-common-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-app-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-plugins-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-shuffle-2.6.5.jar:/opt/hadoop-2.6.5/share/hadoop/mapreduce/hadoop-mapreduce-client-hs-2.6.5.jar:/opt/hadoop-2.6.5/contrib/capacity-scheduler/*.jar
STARTUP_MSG:   build = https://github.com/apache/hadoop.git -r e8c9fe0b4c252caf2ebf1464220599650f119997; compiled by 'sjlee' on 2016-10-02T23:43Z
STARTUP_MSG:   java = 1.8.0_171
************************************************************/
18/05/12 20:50:16 INFO namenode.NameNode: registered UNIX signal handlers for [TERM, HUP, INT]
18/05/12 20:50:16 INFO namenode.NameNode: createNameNode [–format]
Usage: java NameNode [-backup] | 
	[-checkpoint] | 
	[-format [-clusterid cid ] [-force] [-nonInteractive] ] | 
	[-upgrade [-clusterid cid] [-renameReserved<k-v pairs>] ] | 
	[-upgradeOnly [-clusterid cid] [-renameReserved<k-v pairs>] ] | 
	[-rollback] | 
	[-rollingUpgrade <rollback|downgrade|started> ] | 
	[-finalize] | 
	[-importCheckpoint] | 
	[-initializeSharedEdits] | 
	[-bootstrapStandby] | 
	[-recover [ -force] ] | 
	[-metadataVersion ]  ]

18/05/12 20:50:16 INFO namenode.NameNode: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at localhost/127.0.0.1
************************************************************/

原因 hdfs namenode –format "-format"中的-是中文横线,改成英文就好了

2. 通过hadoop dfsadmin -report命令查看到的全是0值,或者上传文件时提示失败,报错是没有可用的datanode。

解决方法,

  • 1.可能是/etc/hosts文件里的主机名和ip对应有问题,可删除没用的对应或易混淆的。
  • 2.防火墙没关
  • 3.ssh没配成功
  • 4.可能多次格式化后namenode和datanode上的clusterID不一致,删除主从节点上的tmp文件,重新格式化。
  • 5.节点的内存。
原地址:https://my.oschina.net/blueyuquan/blog/1811442

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