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一、安装jdk （各个节点均操作）
. |* f Q* `. ^ N2 z1、环境准备
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" ~+ u; p9 t5 T) U, c: A1) master.wyl.world (Master Node)
& [% G1 j4 d; ]$ ^" ~$ E% G2) node01.wyl.world (Slave Node)
* m2 Z V; y- d4 w3) node02.wyl.world (Slave Node) : B( ]1 M W% S5 W
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2、下载jdk包
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[root@master ~]# curl -LO -H "Cookie: oraclelicense=accept-securebackup-cookie" \
+ C, [' O; s) g. g" N# x" J) Hhttp://download.oracle.com/otn-pub/java/jdk/8u71-b15/jdk-8u71-linux-x64.rpm
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安装jdk: W! F/ O- F T# O
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[root@master ~]# rpm -Uvh jdk-8u71-linux-x64.rpm ( `1 X9 l" b- c( j
Preparing... ############################## [100%]+ |$ c* E2 |, [" \* c! N) A0 o; j
1:jdk1.8.0_71 ############################## [100%]
& F1 ]4 p/ u8 a9 y- G3 F; w/ D: A# \' iUnpacking JAR files...0 ]2 c% w9 g- _! J6 _5 U2 l. ?
rt.jar...
+ ^5 x( @. R/ p8 A; S7 x jsse.jar...# t! P3 i6 X s* m( i( l
charsets.jar.../ j" Y- E" V) \
tools.jar...
* P6 D* L" ], {3 c1 E! ] e1 V+ U0 m localedata.jar...# r+ _, W7 g. V: s2 \
jfxrt.jar...( L9 a/ Z% q# {
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3、更改环境变量3 d \2 j% b% k$ V7 Q- L
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5 U% S% u5 e: ^* [# b* r7 `1 U[root@master ~]# vi /etc/profile
& d9 K$ T, }! V7 [# 加在末尾: R& l2 C5 b) e& r0 m* d- h
export JAVA_HOME=/usr/java/default0 b% H# f+ ?0 f- b6 `- }
export PATH=$PATH:$JAVA_HOME/bin, O4 u* s; B8 @' o# n
export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar
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4、应用环境变量
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[root@master ~]# source /etc/profile1
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5、如果系统之前安装过其他版本的jdk，需要更改默认配置
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. x G: l" p& @7 Q[root@master ~]# alternatives --config java 2 P/ d7 q" [ T0 d/ S0 m
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There are 2 programs which provide 'java'.
# `0 x4 F3 D. |8 u8 d O2 b+ c/ M/ Y4 a2 B2 c5 d
Selection Command
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3 G# S: A' S9 r- ]; o, r% i6 l*+ 1 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64/jre/bin/java
! o& e5 [# }% y& ?. X& ] 2 /usr/java/jdk1.8.0_71/jre/bin/java# d. i2 X$ b) S5 l
9 m1 r% ~' ~# V- Z& `选择最新的7 m$ c$ r9 u. @; {6 z, q& U
Enter to keep the current selection[+], or type selection number: 2
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8 e# Z9 N7 Y3 B' j4 w6、写入一个测试程序
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0 v5 }% ?- B Z6 P[root@master ~]# vi day.java
% Q! G4 e2 Y- a! s import java.util.Calendar;
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class day {! o& v5 u& F' Y/ b. r# T/ X9 a
public static void main(String[] args) {
' d7 Q7 {5 j% D( l Calendar cal = Calendar.getInstance();
0 e" ^ @4 J* q4 Y" }) \ }6 j' h% l) O int year = cal.get(Calendar.YEAR);
2 {" K7 |0 ~8 O4 ]) D) l' [ int month = cal.get(Calendar.MONTH) + 1;
" u9 D8 N I5 I9 P9 q4 c* s int day = cal.get(Calendar.DATE);
/ h5 k9 V# q% z& B5 U2 l( J6 K int hour = cal.get(Calendar.HOUR_OF_DAY);. y. e' M+ f) ]3 G$ _5 t8 L
int minute = cal.get(Calendar.MINUTE);
* L0 b$ G* S3 G" y4 B- p: z; j9 b System.out.println(year + "/" + month + "/" + day + " " + hour + ":" + minute);
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7、编译
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[root@master ~]# javac day.java }/ E4 D" k3 E+ d
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8、执行
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[root@master ~]# java day
7 ~" x/ ^& C1 e2 Q2015/3/16 20:30
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二、安装hadoop
~: j) C: I! y# L% \+ w6 y1、在各个节点上创建用户，并设置密码7 v% C6 k- {9 f4 Y$ Z
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* I6 p! `1 i! c[root@master ~]# useradd -d /usr/hadoop hadoop 3 k7 N. o1 k/ p
[root@master ~]# chmod 755 /usr/hadoop
0 F& ~% D3 f8 \* ]: a[root@master ~]# passwd hadoop ) {$ v* x) P/ D( `# ]1 i3 Q
Changing password for user hadoop.- D- O" B8 Z7 Y% Q- R& F
New password:
, {/ X/ W8 V6 kRetype new password:1 {- k" P* @( t _
passwd: all authentication tokens updated successfully.2 @% [1 O" W9 S5 ?; m2 n
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2、通过hadoop用户登录到master节点上，生成秘钥，并拷贝到其他节点上
7 ~/ O- f1 j6 @/ B4 a生成秘钥
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* [8 S2 e1 b- x" |& o2 W[hadoop@master ~]$ ssh-keygen : {9 X5 Z# u$ w! D" E1 }$ [
Generating public/private rsa key pair.
/ U" J1 }! x1 B$ c* L }$ XEnter file in which to save the key (/usr/hadoop/.ssh/id_rsa):
. v% O' h% |# J* Y- ?2 rCreated directory '/usr/hadoop/.ssh'.0 r- {4 ^2 |" K
Enter passphrase (empty for no passphrase):( b" G* z3 O }9 [2 ^) i
Enter same passphrase again:/ ~/ O1 P6 O+ ]
Your identification has been saved in /usr/hadoop/.ssh/id_rsa.& E; {5 q) O ~) _- A7 O" |$ t& F
Your public key has been saved in /usr/hadoop/.ssh/id_rsa.pub.
6 J; \5 R) e8 a0 d. C2 n+ F- vThe key fingerprint is:
) s8 @7 N, s* l" L( H& fxx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx hadoop@master.wyl.world% p; q) L; g! q) x, V
The key's randomart image is:
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3、发送到本机
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[hadoop@master ~]$ ssh-copy-id localhost
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4、分别拷贝到node节点
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3 _7 C& { ?- W& Y[hadoop@master ~]$ ssh-copy-id node01.wyl.world
! J; ] {- m$ \# X- U5 I[hadoop@master ~]$ ssh-copy-id node02.wyl.world
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* G" X+ r+ ]# i6 O1 x6 Q! c7 Q5、通过hadoop用户在各个节点上安装hadoop 6 R4 D5 M& b |( s3 s6 n6 S! x
可以通过下面路径下载最新的安装代码2 a9 }7 ~" u6 @/ m5 I
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https://hadoop.apache.org/releases.html
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下载安装包
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[hadoop@master ~]$ curl -O http://ftp.jaist.ac.jp/pub/apach ... hadoop-2.7.3.tar.gz
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9 A& n+ c4 n4 X( R M2 V" J9 s解压安装包
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[hadoop@master ~]$ tar zxvf hadoop-2.7.3.tar.gz -C /usr/hadoop --strip-components 1
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: ~& a+ I) P2 j: M: \写入系统变量# H& V) @5 C# c
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. o4 ?8 [9 I- c) K8 w: Z[hadoop@master ~]$ vi ~/.bash_profile1 w$ v7 e2 y$ \2 I- O6 n7 b& a
# 加在末尾
, i" F+ K; H0 i0 D5 Iexport HADOOP_HOME=/usr/hadoop# C( R: t# [" K& M) }* W
export HADOOP_COMMON_HOME=$HADOOP_HOME( p8 i7 u& L$ J- m* D; z# `
export HADOOP_HDFS_HOME=$HADOOP_HOME3 _: |' R% O- W3 e. n
export HADOOP_MAPRED_HOME=$HADOOP_HOME
3 O. A, G0 {# j( z$ `$ A. H5 Wexport HADOOP_YARN_HOME=$HADOOP_HOME
( ]! p( i8 k+ s( N4 U1 S, dexport HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/native"9 D- l. ^0 r* U) {( R, G
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
. k' O0 j7 ^: I" t" P$ i" c0 Q& Rexport PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin, d' w. a9 d" O) f9 {) O
, `* I c' h+ w. N应用系统变量0 Y! l0 u3 B" D' ^% C
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- w; x: A0 z# {; m. E: {[hadoop@master ~]$ source ~/.bash_profile 8 {4 w; r, f- Y+ V; h- F! O
& K# ^3 t* n$ F4 |/ w6、通过hadoop用户在master节点上配置hadoop
1 W9 w9 c3 K0 h) \7 B& l创建目录$ ^9 T7 o5 p" H6 G$ ^
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. | t0 N5 O! F% p- v( w$ o[hadoop@master ~]$ mkdir ~/datanode
, R4 a% V9 S0 d' s' m+ i: z[hadoop@master ~]$ ssh node01.wyl.world "mkdir ~/datanode" # H, b: @! M/ Z) ]8 `1 o
[hadoop@master ~]$ ssh node02.wyl.world "mkdir ~/datanode"
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7、修改~/etc/hadoop/hdfs-site.xml
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在 <configuration> - </configuration> 之间加入如下内容/ V. K% l% q+ E) y0 I# @4 ^! C
<configuration>
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<name>dfs.replication</name>8 n' d7 B- c( h
<value>2</value>, [9 D& }; \% f8 {- \; u
</property>
9 P/ a9 n5 @4 I$ n6 ]) [9 x <property>" u4 h# @9 n! x/ y7 F
<name>dfs.datanode.data.dir</name>
! F1 O# K5 e. U2 _0 W" d& t4 R <value>file:///usr/hadoop/datanode</value>" f8 ^0 ^9 V; [+ F7 z
</property># R% b \, B6 h2 e5 _7 H9 w
</configuration>
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) `8 i7 H& _1 B! r Q8、拷贝到其他节点上 r7 H; [3 s# v% w8 z
% ^- L6 X! H; H' L4 X L" j) N3 Y% ?' \
8 ~# u. j7 _1 x, _2 s! i+ a[hadoop@master ~]$ scp ~/etc/hadoop/hdfs-site.xml node01.wyl.world:~/etc/hadoop/
' p- V6 D! K- b, C0 L @[hadoop@master ~]$ scp ~/etc/hadoop/hdfs-site.xml node02.wyl.world:~/etc/hadoop/
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9、修改~/etc/hadoop/core-site.xml1 e2 u, e! m- i( B" |+ A, Y
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5 l' x6 O; `; z% |在 <configuration> - </configuration> 之间加入如下内容
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2 G1 `4 o/ H$ u- w: A" A1 _6 T <property>+ a! }2 D! P# I. E: H+ l
<name>fs.defaultFS</name>
* M+ d' u( _- `( S. R% {+ G <value>hdfs://master.wyl.world:9000/</value>- c# G1 h% h& H$ J5 W/ s
</property>
5 ?3 O/ z* t5 h</configuration>
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10、拷贝到其他节点上0 {, |0 R8 H- U f4 _, V) M9 {8 d
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0 n" e4 g0 i3 L0 F- [: `# }[hadoop@master ~]$ scp ~/etc/hadoop/core-site.xml node01.wyl.world:~/etc/hadoop/ , Q7 _' [4 e- i, e: a7 X2 d
[hadoop@master ~]$ scp ~/etc/hadoop/core-site.xml node02.wyl.world:~/etc/hadoop/
+ C4 d' r% D D, `" r5 V[hadoop@master ~]$ sed -i -e 's/\${JAVA_HOME}/\/usr\/java\/default/' ~/etc/hadoop/hadoop-env.sh / q: `8 X w* Q, A3 N
[hadoop@master ~]$ scp ~/etc/hadoop/hadoop-env.sh node01.wyl.world:~/etc/hadoop/ $ z6 j2 S/ ^1 r6 M- E- i/ F
[hadoop@master ~]$ scp ~/etc/hadoop/hadoop-env.sh node02.wyl.world:~/etc/hadoop/$ p- }3 O! w4 @
[hadoop@master ~]$ mkdir ~/namenode , V5 m! Z5 D* @9 d4 R
/ y! L0 R8 B( Y, T1 o& b11、修改~/etc/hadoop/hdfs-site.xml
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. x# @9 Q! ^* c, _, _- Y在 <configuration> - </configuration> 之间加入如下内容
- b8 L+ Q" g6 C( ]$ \3 c) z<configuration>
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# {5 O' m0 Z8 Y2 o- W <name>dfs.namenode.name.dir</name>
- S5 \: \) N2 ?. Q' r <value>file:///usr/hadoop/namenode</value>' |: b) W% @ N/ Z* g4 ?
</property>
! }+ Q: a3 M: C</configuration>
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12、创建~/etc/hadoop/hdfs-site.xml并写入
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# create new
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<property> s5 E$ ^: C, C+ u3 V
<name>mapreduce.framework.name</name>
0 a9 F6 f+ A) W- m <value>yarn</value>% n4 z% `" m* {' e& o" z ] M( C0 ^2 F
</property>
1 f' Y6 a* O( Z# ?$ |</configuration>' M1 K, h; Y% q
5 v0 a% ]5 J/ a/ J3 L2 R' k13、配置~/etc/hadoop/yarn-site.xml4 J; L* ]0 Q* g: s+ C/ b
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在 <configuration> - </configuration> 之间新增如下内容7 b6 R, P" `2 c! d
<configuration>7 F2 H, b, l# Z2 v
<property>% d* L( i( i4 |- p/ S- Y; |
<name>yarn.resourcemanager.hostname</name>
7 V& n- C% i4 Z( ^2 j K <value>master.wyl.world</value>
% ^, ?. | M; c5 h. ^ </property>- n, X- J9 F# A1 G* ~* u
<property>$ _$ H) r" l3 T. O( \
<name>yarn.nodemanager.hostname</name>
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</property>% Z7 n1 Y4 l/ G) i2 S# U
<property># a% H$ J, Z* ]
<name>yarn.nodemanager.aux-services</name>
* H3 s' G' g( q <value>mapreduce_shuffle</value>
0 p0 n7 E6 g( V: k: v4 v {' ] </property>
) d3 |. m, W t( k+ F4 ~$ \# O( M+ x/ H</configuration>
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14、在~/etc/hadoop/slaves写入各个节点信息
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7 y+ U4 u% J P, N3 A3 v#添加所有节点信息，并删除localhost
2 }+ P' R1 c3 c+ `& C A9 N- smaster.wyl.world
8 [5 E' ^5 N1 v% D1 @7 k* Snode01.wyl.world
4 M# V/ R3 g& K8 B( nnode02.wyl.world
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15、格式化namenode并启动hadoop服务 : g: Y F7 R" _, c
格式化节点
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[hadoop@master ~]$ hdfs namenode -format , _! Q% r4 E: u
15/07/28 19:58:14 INFO namenode.NameNode: STARTUP_MSG:
1 {+ H% b/ s$ ^- O0 Q5 I2 E; l/************************************************************
8 l6 o7 d# D$ \; \STARTUP_MSG: Starting NameNode
3 N4 \, S# M7 b# k) d H0 h1 bSTARTUP_MSG: host = master.wyl.world/10.0.0.307 |8 d5 L6 W. A( b6 T
STARTUP_MSG: args = [-format]1 M% U- f4 r* N( [ h" i" z0 P. f b$ @- L0 {
STARTUP_MSG: version = 2.7.3
( D2 [# T9 y# p5 u4 l1 y c.....
( q% y6 x% {- G. [. I4 S6 o.....
) L+ J$ y$ q; o6 m0 N) D# j15/07/28 19:58:17 INFO namenode.NameNode: SHUTDOWN_MSG:
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SHUTDOWN_MSG: Shutting down NameNode at master.wyl.world/10.0.0.30
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# a* q6 j- m! m启动dfs7 `) s1 |1 w+ T. X3 Q5 { a- S5 x
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[hadoop@master ~]$ start-dfs.sh 7 ]( }& d! `3 H% D
Starting namenodes on [master.wyl.world]
, g6 d( i V _! K( a" Umaster.wyl.world: starting namenode, logging to /usr/hadoop/logs/hadoop-hadoop-namenode-master.wyl.world.out |0 s6 R9 k8 q- @$ D8 B6 j3 @. U' _
master.wyl.world: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-master.wyl.world.out0 W2 C* x" M6 I+ z2 p$ \: s
node02.wyl.world: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-node02.wyl.world.out3 Z- g: ^ L4 {' C# I; R! j$ w
node01.wyl.world: starting datanode, logging to /usr/hadoop/logs/hadoop-hadoop-datanode-node01.wyl.world.out6 a& V( m7 ^, L" {
Starting secondary namenodes [0.0.0.0]9 L( A: D3 U1 _( v" H- ?
0.0.0.0: starting secondarynamenode, logging to /usr/hadoop/logs/hadoop-hadoop-secondarynamenode-master.wyl.world.out
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" E- c5 M9 z. _; Z启动yarn: e- s- Y( ^6 k+ u
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3 f# \% L" g% a: S; n+ q9 v[hadoop@master ~]$ start-yarn.sh
8 d' e" V& V* M# g+ Rstarting yarn daemons
5 @4 ~3 p Q. X0 X" Q! ustarting resourcemanager, logging to /usr/hadoop/logs/yarn-hadoop-resourcemanager-master.wyl.world.out5 E/ o7 `& {8 w1 i9 e, h2 I: x
master.wyl.world: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-master.wyl.world.out
I# s& ]9 d2 G4 Anode02.wyl.world: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-node02.wyl.world.out
& F! `+ B9 o2 V1 d* u9 c0 Tnode01.wyl.world: starting nodemanager, logging to /usr/hadoop/logs/yarn-hadoop-nodemanager-node01.wyl.world.out6 r/ ]* ~7 T$ c1 s: q0 D
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16、查看服务状态，正常如下，如异常，请返回检查配置
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[hadoop@master ~]$ jps $ P0 J# B. y% j( L3 ]
2130 NameNode+ |* P1 h( n% d: z: d; X
2437 SecondaryNameNode& p- @( A8 t, t0 O" s7 W& f( [
2598 ResourceManager. M" m; k d/ F/ T- X; n2 Z/ O& h
2710 NodeManager
) F' \) W6 t8 n8 w- m/ k6 S3001 Jps1 k, r" P" x. l+ ~; X' p
2267 DataNode Q- R2 K- ^7 G0 M
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17、创建目录
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! b9 A' P/ R- R[hadoop@master ~]$ hdfs dfs -mkdir /test
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18、拷贝一个文件到/test
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: W+ y$ y* t$ Q& R9 ^8 `0 K M x[hadoop@master ~]$ hdfs dfs -copyFromLocal ~/NOTICE.txt /test
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19、展示文件内容6 Y- J9 j1 z6 ~- ~
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[hadoop@master ~]$ hdfs dfs -cat /test/NOTICE.txt / W: W( g2 |" W8 D5 y: c* [
This product includes software developed by The Apache Software- X( [. C: i$ q; E1 c. C
Foundation (http://www.apache.org/).
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. o$ @# p7 y4 m20、执行程序) o3 k! C8 U" }/ G
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5 v3 T T! `- l2 }( i3 t% \[hadoop@master ~]$ hadoop jar ~/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.3.jar wordcount /test/NOTICE.txt /output01
5 P4 Q' K9 l" Y: r15/07/28 19:28:47 INFO client.RMProxy: Connecting to ResourceManager at master.wyl.world/10.0.0.30:80327 I O; }. |+ I" j n# U
15/07/28 19:28:48 INFO input.FileInputFormat: Total input paths to process : 1. F% g" _4 z: ~7 o
15/07/28 19:28:48 INFO mapreduce.JobSubmitter: number of splits:1' O' r2 Q) ]& D* ?
.....* Q: V' |6 m$ a) q0 ~/ `% Z
.....
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21、查看结果. N) |3 S$ |% D9 X4 F& S
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[hadoop@master ~]$ hdfs dfs -ls /output01
% }1 h, V2 J1 W0 n; O( N8 EFound 2 items, f- m9 X" v: _: R+ f2 H
-rw-r--r-- 2 hadoop supergroup 0 2015-07-29 14:29 /output01/_SUCCESS
3 n, ^ _+ {! E5 F, [* m* T& I# f1 H-rw-r--r-- 2 hadoop supergroup 123 2015-07-29 14:29 /output01/part-r-000007 z( d2 ] P6 M; f' U
$ y, A5 ~4 f1 D$ k5 b+ ^1 g1 x22、显示文件结果
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[hadoop@master ~]$ hdfs dfs -cat /output01/part-r-00000
) b, H% p* c: a(http://www.apache.org/). 1
& a$ z& d' U+ ^6 A* ]Apache 1
3 v6 n, s+ R% Y0 x8 K2 x9 hFoundation 1
/ K- V4 I) I- tSoftware 1
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This 1
2 v" i) Q, f) t+ kby 1% j# o9 h% L! D- U: m
developed 1
% T! G) r# Y) k$ }, P& y5 R7 uincludes 1
( J1 } C% x4 e* a9 [1 w2 z$ zproduct 1, Z; q s9 J E1 C. r2 n: x9 @
software 1
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查看集群概要
# k) v% P- i# k. M' fhttp://(server’s hostname or IP address):50070 ( @/ [$ _! q$ O7 ^5 C
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集群详细信息
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F2 [$ S: C- ]) @http://(server’s hostname or IP address):8088/ # Y9 o& D0 t* f# h5 D* t0 _1 _
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发表于 2018-9-26 10:27:20