Hadoop 2.7.7 完全分布式部署
组件版本**
| 组件 | 版本 | 下载地址 |
|---|---|---|
| Hadoop | 2.7.7 | https://archive.apache.org/dist/hadoop/common/hadoop-2.7.7/hadoop-2.7.7.tar.gz |
| JDK | 1.8 | https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html |
**机器环境 **
| IP | 主机名 | 密码 |
|---|---|---|
| 192.168.222.201 | master | password |
| 192.168.222.202 | slave1 | password |
| 192.169.222.203 | slave2 | password |
1、机器基础环境
参考地址:https://blog.csdn.net/su_mingyang/article/details/118070573
- 关闭防火墙，设置开机不自启（三台虚拟机都要做该操作）
- 配置hosts文件（三天能够互相通信）
- 配置SSH
- 时间同步配置NTP或使用date手动调整
2、安装java(三台机器都要安装)
参考地址:https://blog.csdn.net/su_mingyang/article/details/120872313
3、部署hadoop完全分布式
3.1 解压hadoop文件
[root@master ~]#
命令：
tar -xzf /chinaskills/hadoop-2.7.7.tar.gz -C /usr/local/src/
3.2 重命名为hadoop
[root@master ~]#
命令：
mv /usr/local/src/hadoop-2.7.7 /usr/local/src/hadoop
3.3 配置hadoop环境变量(仅当前用户生效)
[root@master ~]#
命令：
vi /root/.bash_profile
配置内容:
export HADOOP_HOME=/usr/local/src/hadoop
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
3.4 加载环境变量
[root@master ~]#
命令：
source /root/.bash_profile
3.5 查看hadoop的版本信息
[root@master ~]#
命令：
hadoop version
输出信息：
Hadoop 2.7.7
Subversion Unknown -r c1aad84bd27cd79c3d1a7dd58202a8c3ee1ed3ac
Compiled by stevel on 2018-07-18T22:47Z
Compiled with protoc 2.5.0
From source with checksum 792e15d20b12c74bd6f19a1fb886490
This command was run using /usr/local/src/hadoop/share/hadoop/common/hadoop-common-2.7.7.jar
3.6 配置hadoop-env.sh
[root@master ~]#
命令：
vi /usr/local/src/hadoop/etc/hadoop/hadoop-env.sh
配置内容:
export JAVA_HOME=/usr/local/src/java
3.7 配置core-site.xml
[root@master ~]#
命令：
vi /usr/local/src/hadoop/etc/hadoop/core-site.xml
配置内容:
<property>
<name>fs.defaultFSname>
<value>hdfs://master:9000value>
property>
<property>
<name>hadoop.tmp.dirname>
<value>/usr/local/src/hadoop/dfs/tmpvalue>
property>
3.8 配置hdfs-site.xml
[root@master ~]#
命令：
vi /usr/local/src/hadoop/etc/hadoop/hdfs-site.xml
配置内容:
<property>
<name>dfs.replicationname>
<value>3value>
property>
<property>
<name>dfs.namenode.name.dirname>
<value>/usr/local/src/hadoop/dfs/namevalue>
property>
<property>
<name>dfs.datanode.data.dirname>
<value>/usr/local/src/hadoop/dfs/datavalue>
property>
3.9 配置mapred-site.xml
[root@master ~]#
命令：
cp /usr/local/src/hadoop/etc/hadoop/mapred-site.xml.template /usr/local/src/hadoop/etc/hadoop/mapred-site.xml
vi /usr/local/src/hadoop/etc/hadoop/mapred-site.xml
配置内容:
<property>
<name>mapreduce.framework.namename>
<value>yarnvalue>
property>
3.10 配置yarn-site.xml
[root@master ~]#
命令：
vi /usr/local/src/hadoop/etc/hadoop/yarn-site.xml
配置内容:
<property>
<name>yarn.nodemanager.aux-servicesname>
<value>mapreduce_shufflevalue>
property>
<property>
<name>yarn.resourcemanager.addressname>
<value>master:8032value>
property>
<property>
<name>yarn.resourcemanager.scheduler.addressname>
<value>master:8030value>
property>
<property>
<name>yarn.resourcemanager.resource-tracker.addressname>
<value>master:8031value>
property>
<property>
<name>yarn.nodemanager.vmem-check-enabledname>
<value>falsevalue>
property>
3.11 配置slaves
[root@master ~]#
命令：
vi /usr/local/src/hadoop/etc/hadoop/slaves
配置内容:
master
slave1
slave2
3.12 将文件分发给slave1和slave2
[root@master ~]#
命令：
scp -r /usr/local/src/hadoop slave1:/usr/local/src/
scp -r /usr/local/src/hadoop slave2:/usr/local/src/
scp /root/.bash_profile slave1:/root/
scp /root/.bash_profile slave2:/root/
3.13 对namenode进行格式化
[root@master ~]#
命令：
hdfs namenode -format
最后十行输出信息:
21/10/19 01:18:21 INFO namenode.FSImage: Allocated new BlockPoolId: BP-1164747633-192.168.222.201-1634577501149
21/10/19 01:18:21 INFO common.Storage: Storage directory /usr/local/src/hadoop/dfs/name has been successfully formatted.
21/10/19 01:18:21 INFO namenode.FSImageFormatProtobuf: Saving image file /usr/local/src/hadoop/dfs/name/current/fsimage.ckpt_0000000000000000000 using no compression
21/10/19 01:18:21 INFO namenode.FSImageFormatProtobuf: Image file /usr/local/src/hadoop/dfs/name/current/fsimage.ckpt_0000000000000000000 of size 320 bytes saved in 0 seconds.
21/10/19 01:18:21 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
21/10/19 01:18:21 INFO util.ExitUtil: Exiting with status 0
21/10/19 01:18:21 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at master/192.168.222.201
************************************************************/
3.14 启动集群
[root@master ~]#
命令：
start-all.sh
输出信息:
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [master]
master: starting namenode, logging to /usr/local/src/hadoop/logs/hadoop-root-namenode-master.out
slave2: starting datanode, logging to /usr/local/src/hadoop/logs/hadoop-root-datanode-slave2.out
slave1: starting datanode, logging to /usr/local/src/hadoop/logs/hadoop-root-datanode-slave1.out
master: starting datanode, logging to /usr/local/src/hadoop/logs/hadoop-root-datanode-master.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 d3:a9:ba:a4:63:70:24:88:37:25:a2:60:2e:e1:e9:31.
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/src/hadoop/logs/hadoop-root-secondarynamenode-master.out
starting yarn daemons
starting resourcemanager, logging to /usr/local/src/hadoop/logs/yarn-root-resourcemanager-master.out
slave2: starting nodemanager, logging to /usr/local/src/hadoop/logs/yarn-root-nodemanager-slave2.out
slave1: starting nodemanager, logging to /usr/local/src/hadoop/logs/yarn-root-nodemanager-slave1.out
master: starting nodemanager, logging to /usr/local/src/hadoop/logs/yarn-root-nodemanager-master.out
3.15 查看节点信息
[root@master ~]# jps
4448 DataNode
4325 NameNode
4853 NodeManager
4599 SecondaryNameNode
4744 ResourceManager
5128 Jps
[root@slave1 ~]# jps
3474 DataNode
3570 NodeManager
3682 Jps
[root@slave2 ~]# jps
3418 DataNode
3514 NodeManager
3626 Jps
3.16 运行pi程序测试
[root@master ~]#
命令：
hadoop jar /usr/local/src/hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.7.jar pi 10 10
输出结果:
Number of Maps = 10
Samples per Map = 10
Wrote input for Map #0
Wrote input for Map #1
Wrote input for Map #2
Wrote input for Map #3
Wrote input for Map #4
Wrote input for Map #5
Wrote input for Map #6
Wrote input for Map #7
Wrote input for Map #8
Wrote input for Map #9
Starting Job
21/10/19 01:22:10 INFO client.RMProxy: Connecting to ResourceManager at master/192.168.222.201:8032
21/10/19 01:22:11 INFO input.FileInputFormat: Total input paths to process : 10
21/10/19 01:22:11 INFO mapreduce.JobSubmitter: number of splits:10
21/10/19 01:22:11 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1634577560934_0001
21/10/19 01:22:11 INFO impl.YarnClientImpl: Submitted application application_1634577560934_0001
21/10/19 01:22:11 INFO mapreduce.Job: The url to track the job: http://master:8088/proxy/application_1634577560934_0001/
21/10/19 01:22:11 INFO mapreduce.Job: Running job: job_1634577560934_0001
21/10/19 01:22:20 INFO mapreduce.Job: Job job_1634577560934_0001 running in uber mode : false
21/10/19 01:22:20 INFO mapreduce.Job: map 0% reduce 0%
21/10/19 01:22:31 INFO mapreduce.Job: map 20% reduce 0%
21/10/19 01:22:41 INFO mapreduce.Job: map 20% reduce 7%
21/10/19 01:22:50 INFO mapreduce.Job: map 40% reduce 7%
21/10/19 01:22:51 INFO mapreduce.Job: map 100% reduce 7%
21/10/19 01:22:52 INFO mapreduce.Job: map 100% reduce 100%
21/10/19 01:22:52 INFO mapreduce.Job: Job job_1634577560934_0001 completed successfully
21/10/19 01:22:52 INFO mapreduce.Job: Counters: 49
File System Counters
FILE: Number of bytes read=226
FILE: Number of bytes written=1352945
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=2600
HDFS: Number of bytes written=215
HDFS: Number of read operations=43
HDFS: Number of large read operations=0
HDFS: Number of write operations=3
Job Counters
Launched map tasks=10
Launched reduce tasks=1
Data-local map tasks=10
Total time spent by all maps in occupied slots (ms)=242528
Total time spent by all reduces in occupied slots (ms)=19189
Total time spent by all map tasks (ms)=242528
Total time spent by all reduce tasks (ms)=19189
Total vcore-milliseconds taken by all map tasks=242528
Total vcore-milliseconds taken by all reduce tasks=19189
Total megabyte-milliseconds taken by all map tasks=248348672
Total megabyte-milliseconds taken by all reduce tasks=19649536
Map-Reduce Framework
Map input records=10
Map output records=20
Map output bytes=180
Map output materialized bytes=280
Input split bytes=1420
Combine input records=0
Combine output records=0
Reduce input groups=2
Reduce shuffle bytes=280
Reduce input records=20
Reduce output records=0
Spilled Records=40
Shuffled Maps =10
Failed Shuffles=0
Merged Map outputs=10
GC time elapsed (ms)=3019
CPU time spent (ms)=5370
Physical memory (bytes) snapshot=2012909568
Virtual memory (bytes) snapshot=22836789248
Total committed heap usage (bytes)=1383833600
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
File Input Format Counters
Bytes Read=1180
File Output Format Counters
Bytes Written=97
Job Finished in 41.825 seconds
Estimated value of Pi is 3.20000000000000000000
3.17 查看web界面
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