基于Hadoop2.5.0的集群搭建
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本文档以word附件保存在CSDN中，格式更方便查看： http://download.csdn.net/download/yameing/8011891
一、 规划
1. 准备安装包
JDK:http://download.oracle.com/otn-pub/java/jdk/7u67-b01/jdk-7u67-linux-x64.tar.gz
Hadoop:http://mirrors.cnnic.cn/apache/hadoop/common/hadoop-2.5.0/hadoop-2.5.0.tar.gz
Hive:http://apache.fayea.com/apache-mirror/hive/hive-0.13.1/apache-hive-0.13.1-bin.tar.gz
ZK:http://mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz
HBase:http://apache.fayea.com/apache-mirror/hbase/hbase-0.98.5/hbase-0.98.5-hadoop2-bin.tar.gz
MysqlConnector:http://ftp.nchu.edu.tw/Unix/Database/MySQL/Downloads/Connector-J/mysql-connector-java-5.1.25.zip
Sqoop：complete based on sqoop-1.4.5 and current hadoop version
http://mirror.bit.edu.cn/apache/sqoop/1.4.5/sqoop-1.4.5.tar.gz
2. 环境规划
|
类型 |
名称 |
配置 |
IP |
安装内容 |
|
Hadoop集群主节点 |
mycluster1 |
16核*32G*2T |
192.168.2.92 |
Hadoop |
|
mycluster2 |
16核*32G*6T |
192.168.2.88 |
||
|
Hadoop集群从节点 |
mycluster3 |
4核*8G*250G |
192.168.1.84 |
|
|
mycluster4 |
4核*8G*250G |
192.168.1.85 |
||
|
mycluster5 |
4核*8G*250G |
192.168.1.86 |
||
|
mycluster6 |
4核*8G*250G |
192.168.1.87 |
||
|
mycluster7 |
4核*8G*250G |
192.168.1.88 |
||
|
mycluster8 |
4核*8G*250G |
192.168.1.89 |
||
|
mycluster9 |
4核*8G*250G |
192.168.1.90 |
||
|
mycluster10 |
4核*8G*250G |
192.168.1.91 |
||
|
分布式应用 |
mycluster11 |
4核*8G*250G |
192.168.1.92 |
Hive Sqoop MySQL |
二、 安装
1. 环境配置
a) 基本配置
1. 配置各机器的机器名
|
vi /etc/sysconfig/network vi /etc/hosts hostname mycluster* |
2. 所有节点关闭防火墙
|
service iptables stop |
3. 将所有机器名配置到各机器中
|
vi /etc/hosts |
|
#127.0.0.1 localhost localhost.localdomain mycluster5 #::1 localhost localhost.localdomain mycluster5 # 这里注释掉关于localhost的配置，详情查看遇到的问题 # 因为zookeeper要求配置localhost，所以这里关于本地地址的配置改为如下： 127.0.0.1 localhost localhost.localdomain ::1 localhost localhost.localdomain
192.168.2.92 mycluster1 192.168.2.88 mycluster2 192.168.1.84 mycluster3 192.168.1.85 mycluster4 192.168.1.86 mycluster5 192.168.1.87 mycluster6 192.168.1.88 mycluster7 192.168.1.89 mycluster8 192.168.1.90 mycluster9 192.168.1.91 mycluster10 192.168.1.92 mycluster11 |
4. 保证各机器间时间差不超过2分钟
|
date date -s "2014-09-05 23:38:00" ntpdate time.windows.com clock -w |
查看 修改 若连通互联网，可同步微软 写入BIOS |
b) 打通SSH
1. 在各机器创建mycluster用户。以后的命令都在mycluster下执行。
|
groupadd mycluster useradd -g mycluster -G root -d /home/mycluster mycluster passwd qcpass@lh |
2. 在各Slave创建ssh目录。
|
mkdir /home/mycluster/.ssh chmod 700 /home/mycluster/.ssh |
目录权限必须是700，否则无法ssh登录 |
3. 登录Master，生成SSH公钥、私钥，复制公钥到各Slave。
|
ssh-keygen -t rsa cd /home/mycluster/.ssh
cp id_rsa.pub authorized_keys scp authorized_keys mycluster@mycluster*:/home/mycluster/.ssh |
c) 安装JDK1.7
1. 登录root用户安装JDK到/usr/java目录下。
|
tar -zxvf jdk-7u67-linux-x64.gz ln -s jdk1.7.0_67 jdk |
2. 配置环境变量。
|
vi /etc/profile vi .bashrc |
所有用户可见的方式 当前用户可见的方式 |
|
|
export JAVA_HOME=/home/mycluster/jdk export CLASSPATH=. export PATH=$JAVA_HOME/bin:$PATH |
||
|
source /etc/profile env | grep JAVA_HOME |
生效 验证 |
|
2. Hadoop2.5.0 安装
a) 安装与配置
|
tar zxvf hadoop-2.5.0.tar.gz cd hadoop-2.5.0/etc/hadoop/ vi hadoop-env.sh |
|
export JAVA_HOME=/home/mycluster/jdk |
|
vi core-site.xml |
|
<property> <name>fs.defaultFS</name> <value>hdfs://192.168.2.92:9100</value> </property> <property> <name>fs.trash.interval</name> <value>14400</value> </property> |
|
vi hdfs-site.xml |
|
<property> <name>dfs.namenode.name.dir</name> <value>/home/mycluster/data/dfs_namenode_name_dir</value> </property> <property> <name>dfs.datanode.data.dir</name> <value>/home/mycluster/data/dfs_datanode_data_dir</value> </property> <property> <name>dfs.replication</name> <value>2</value> </property> |
|
vi mapred-site.xml (yarn必须小写) |
|
<property> <name>mapreduce.framework.name</name> <value>yarn</value> </property> |
|
vi yarn-site.xml |
|
<property> <name>yarn.resourcemanager.hostname</name> <value>mycluster1</value> </property> <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> |
|
vi slaves |
|
mycluster3 mycluster4 mycluster5 mycluster6 mycluster7 mycluster8 mycluster9 mycluster10 |
3. 从Master复制Hadoop目录到各Slave。
|
scp -r /home/mycluster/hadoop-2.5.0 mycluster@mycluster3:/home/mycluster |
b) 启动与测试
1. 登录Master，配置Hadoop环境变量。
|
vi /home/mycluster/.bash_profile |
|
export HADOOP_HOME=/home/mycluster/hadoop-2.5.0 export PATH=$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH |
|
source /home/mycluster/.bash_profile env | grep HADOOP_HOME |
2. 格式化HDFS，启动Hadoop，测试。
|
hadoop namenode -format start-dfs.sh start-yarn.sh jps hadoop jar hadoop-2.5.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0.jar pi 2 10000 |
3. 编写自定义MR程序测试。
|
(暂不提供) |
3. 安装MySQL
a) 安装与配置
这里安装的是MySQL绿色版，好处是全过程可控，当然图方便可以安装RPM。
1. 安装tar.gz
|
tar zxvf mysql-5.6.12-linux-glibc2.5-i686.tar.gz mv mysql-5.6.12-linux-glibc2.5-i686 /usr/local/mysql |
2. 创建组、用户，授权
|
groupadd mycluster useradd -g mycluster -G root -d /home/mycluster mycluster passwd qcpass@lh cd /usr/local/mysql chown -R mycluster . chgrp -R mycluster . scripts/mysql_install_db --user=mycluster chown -R root . chown -R mycluster data chmod u+x data/ibdata1 mv mycluster 11.err mycluster 11.err_ |
3. 配置文件
|
mv /etc/my.cnf /etc/my.cnf_ cp support-files/my-default.cnf /etc/my.cnf vi /etc/my.cnf |
避免以前安装过MySQL |
|
[mysqld] basedir=/usr/local/mysql datadir=/usr/local/mysql/data character-set-server=utf8 lower_case_table_names=1 sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES |
|
b) 启动与测试
1. 启动
|
mv /etc/init.d/mysql /etc/init.d/mysql_ cp support-files/mysql.server /etc/init.d/mysql service mysql start chkconfig --add mysql |
避免以前安装过MySQL
立即启动 开机启动 |
2. 修改密码
|
vi /mycluster/.bash_profile |
|
|
export PATH=/usr/local/mysql/bin:$PATH |
|
|
source /mycluster/.bash_profile mysql -u root -p mysql> set password = password(‘root‘); |
root密码为空 修改密码为root |
4. 安装Hive
a) 安装与配置
1. 解压。
|
tar zxvf apache-hive-0.13.1-bin.tar.gz echo ‘export HIVE_HOME=/home/mycluster/apache-hive-0.13.1-bin‘ >> /home/mycluster/.bashrc echo ‘export PATH=$HIVE_HOME/bin:$PATH‘ >> /home/mycluster/.bashrc |
2. 在HDFS中创建Hive目录。
|
hadoop fs -mkdir /tmp hadoop fs -mkdir /user/hive/warehouse hadoop fs -chmod g+w /tmp hadoop fs -chmod g+w /user/hive/warehouse |
3. 创建MySQL数据库。
|
create database hive character set latin1; |
4. 配置文件。
|
cd apache-hive-0.13.1-bin/conf cp hive-default.xml.template hive-site.xml vi hive-site.xml |
|
<configuration> <property> <name>javax.jdo.option.ConnectionURL</name> <value>jdbc:mysql://localhost:3306/hive</value> </property> <property> <name>javax.jdo.option.ConnectionDriverName</name> <value>com.mysql.jdbc.Driver</value> </property> <property> <name>javax.jdo.option.ConnectionUserName</name> <value>root</value> </property> <property> <name>javax.jdo.option.ConnectionPassword</name> <value>root</value> </property> </configuration> |
|
cp mysql-connector-java-5.1.25-bin.jar /home/mycluster/apache-hive-0.13.1-bin/lib/ |
5. 配置环境变量。
|
vi /home/hadoop/.bash_profile |
|
export HIVE_HOME=/home/hadoop/hive-0.9.0 export PATH=$HIVE_HOME/bin:$PATH |
|
source /home/hadoop/.bash_profile |
b) 启动与测试
(几种启动方式，暂缺)
5. 安装Sqoop
a) 安装与配置
1. 安装tar.gz
|
tar -xvf sqoop-1.4.5.bin__hadoop-2.5.0.tar.gz ln -s sqoop-1.4.5.bin__hadoop-2.5.0 sqoop
export SQOOP_HOME=/home/mycluster/sqoop export PATH=$SQOOP_HOME/bin:$PATH |
2. 添加jar
根据需要，添加mysql connector、oracle connector
|
scp mysql-connector-java-5.1.25-bin.jar mycluster@mycluster11:/home/mycluster/sqoop/lib scp ojdbc14.jar mycluster@mycluster11:/home/mycluster/sqoop/lib |
3. 配置文件
|
cd /home/mycluster/sqoop/conf cp sqoop-env-template.sh sqoop-env.sh
vi sqoop-env.sh |
|
export HADOOP_COMMON_HOME=/home/mycluster/hadoop-2.5.0 export HADOOP_MAPRED_HOME=/home/mycluster/hadoop-2.5.0/share/hadoop/mapreduce export HIVE_HOME=/home/mycluster/apache-hive-0.13.1-bin |
b) 启动与测试
|
sqoop list-databases --connect jdbc:mysql://localhost:3306/ --username root --password root |
6. 安装ZooKeeper3.4.6
a) 安装与配置
1. 安装与配置
|
tar -zxvf zookeeper-3.4.6.tar.gz mkdir /home/mycluster/zookeeper-3.4.6/zookeeperdir/logs cp zookeeper-3.4.6/conf/zoo_sample.cfg zookeeper-3.4.6/conf/zoo.cfg vi zookeeper-3.4.6/conf/zoo.cfg |
|
tickTime=2000 initLimit=10 syncLimit=5 dataDir=/home/mycluster/zookeeper-3.4.6/zookeeperdir/zookeeper-data dataLogDir=/home/mycluster/zookeeper-3.4.6/zookeeperdir/logs clientPort=2181 server.1=mycluster1:2888:3888 server.2=mycluster3:2888:3888 server.3=mycluster4:2888:3888 |
|
vi .bashrc |
|
export ZOOKEEPER_HOME=/home/mycluster/zookeeper-3.4.6 export PATH=$ZOOKEEPER_HOME/bin:$PATH |
2. 复制ZK目录到各主机。
|
scp -r /home/mycluster/zookeeper-3.4.6 mycluster@mycluster3:/home/mycluster scp -r /home/mycluster/zookeeper-3.4.6 mycluster@mycluster4:/home/mycluster |
3. 设置myid
|
[mycluster@mycluster1 ~]$ echo "1" > /home/mycluster/zookeeper-3.4.6/zookeeperdir/zookeeper-data/myid [mycluster@mycluster3 ~]$ echo "2" > /home/mycluster/zookeeper-3.4.6/zookeeperdir/zookeeper-data/myid [mycluster@mycluster4 ~]$ echo "3" > /home/mycluster/zookeeper-3.4.6/zookeeperdir/zookeeper-data/myid |
b) 启动与测试
1. 登录各机器启动ZK。
|
[mycluster@mycluster1 ~]$ zkServer.sh start [mycluster@mycluster3 ~]$ zkServer.sh start [mycluster@mycluster4 ~]$ zkServer.sh start |
2. 查看启动状态。
由于ZooKeeper集群启动的时候，每个结点都试图去连接集群中的其它结点，先启动的肯定连不上后面还没启动的，所以日志前面部分的连接异常是可以忽略的。通过后面部分可以看到，集群在选出一个Leader后，最后稳定了。
|
[mycluster@mycluster1 ~]$ zkServer.sh status JMX enabled by default Using config: /home/mycluster/zookeeper-3.4.6/bin/../conf/zoo.cfg Mode: follower
[mycluster@mycluster3 ~]$ zkServer.sh status JMX enabled by default Using config: /home/mycluster/zookeeper-3.4.6/bin/../conf/zoo.cfg Mode: leader
[mycluster@mycluster4 ~]$ zkServer.sh status JMX enabled by default Using config: /home/mycluster/zookeeper-3.4.6/bin/../conf/zoo.cfg Mode: follower |
3. 客户端测试。
|
[mycluster@mycluster1 ~]$ zkCli.sh -server mycluster1:2181 [zk: mycluster1:2181(CONNECTED) 0] ls / [zookeeper] |
7. 安装HBase(未实现)
三、 调优(进行中... ...)
1. Hadoop调优
a) HA & Federation
·HA：解决单点故障
·Federation：扩大集群容量和提高集群性能
本集群暂不考虑Federation，因为集群暂时不会达到非常大的规模。
HA配置：
|
vi hdfs-site.xml |
|
<!-- HA config --> <property> <name>dfs.nameservices</name> <value>mycluster</value> <description>提供服务的NS逻辑名称，与core-site.xml里的对应</description> </property> <property> <name>dfs.ha.namenodes.mycluster</name> <value>namenode1,redhat22688</value> <description>列出该逻辑名称下的NameNode逻辑名称</description> </property> <property> <name>dfs.namenode.rpc-address.mycluster.namenode1</name> <value>mycluster1:9000</value> <description>指定NameNode的RPC位置</description> </property> <property> <name>dfs.namenode.http-address.mycluster.namenode1</name> <value>mycluster1:50070</value> <description>指定NameNode的Web Server位置</description> </property> <property> <name>dfs.namenode.rpc-address.mycluster.redhat22688</name> <value>redhat22688:9000</value> <description>指定NameNode的RPC位置</description> </property> <property> <name>dfs.namenode.http-address.mycluster.redhat22688</name> <value>redhat22688:50070</value> <description>指定NameNode的Web Server位置</description> </property> <!-- HA，NameNode --> <property> <name>dfs.namenode.shared.edits.dir</name> <value>qjournal://mycluster3:8485;mycluster4:8485;mycluster5:8485/mycluster</value> </property> <property> <name>dfs.journalnode.edits.dir</name> <value>/home/mycluster/data/haqjm/dfs_journalnode_edits_dir</value> </property> <property> <name>dfs.ha.fencing.methods</name> <value>sshfence</value> <description>指定HA做隔离的方法，缺省是ssh，可设为shell，稍后详述</description> </property> <property> <name>dfs.ha.fencing.ssh.private-key-files</name> <value>/home/mycluster/.ssh/id_rsa</value> </property> <!-- HA，客户端 --> <property> <name>dfs.client.failover.proxy.provider.mycluster</name> <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value> </property> |
|
vi core-site.xml |
|
<property> <name>fs.defaultFS</name> <value>hdfs://mycluster</value> </property> |
|
# 启动对应机器上的JN（hdfs-site中配置的） [mycluster@mycluster3 ~]$ hadoop-2.5.0/sbin/hadoop-daemon.sh start journalnode [mycluster@mycluster4 ~]$ hadoop-2.5.0/sbin/hadoop-daemon.sh start journalnode [mycluster@mycluster5 ~]$ hadoop-2.5.0/sbin/hadoop-daemon.sh start journalnode |
|
# 格式化一个NN，并启动 [mycluster@mycluster1 ~]$ hadoop namenode -format [mycluster@mycluster1 ~]$ hadoop-daemon.sh start namenode |
|
# 格式化另一个NN，并启动 [mycluster@mycluster1 ~]$ scp -r data mycluster@redhat22688:/home/mycluster/ [mycluster@redhat22688 ~]$ hadoop namenode -bootstrapStandby [mycluster@redhat22688 ~]$ hadoop-daemon.sh start namenode |
|
# 这时候，使用浏览器访问http://116.228.171.104:50070/ 和 http://116.228.171.119:50070/ 。 # 如果能够看到两个页面，证明NameNode启动成功了。这时，两个NameNode的状态都是standby。 # 或者使用以下命令 [mycluster@mycluster1 ~]$ hdfs haadmin -getServiceState namenode1 |
|
# 转化active [mycluster@mycluster1 ~]$ hdfs haadmin -transitionToActive namenode1 |
|
# 启动所有DN [mycluster@mycluster1 ~]$ hadoop-daemons.sh start datanode |
启用故障自动恢复：
|
vi hdfs-site.xml |
|
<property> <name>dfs.ha.automatic-failover.enabled</name> <value>true</value> <description>或者false</description> </property> |
|
vi core-site.xml |
|
<property> <name>ha.zookeeper.quorum</name> <value>mycluster1:2181,mycluster3:2181,mycluster4:2181</value> <description>指定用于HA的ZooKeeper集群机器列表</description> </property> <property> <name>ha.zookeeper.session-timeout.ms</name> <value>5000</value> <description>指定ZooKeeper超时间隔，单位毫秒</description> </property> |
|
# 在其中一个NN上执行： [mycluster@mycluster1 ~]$ hdfs zkfc -formatZK |
四、 遇到的问题
1、参考文档
Hadoop : http://hadoop.apache.org/docs/r2.5.1/
Hive : http://hive.apache.org/
ZK : http://zookeeper.apache.org/
Sqoop : http://sqoop.apache.org/docs/1.4.5/index.html
2、Hadoop及各组件版本
3、SSH端口不是默认端口22
如果ssh端口不是默认的22，在etc/hadoop/hadoop-env.sh里改下。如：
|
export HADOOP_SSH_OPTS="-p 18921" |
4、不同节点SSH端口不一样
对于hadoop来说，SSH并非很重要的内容，hadoop中仅仅使用其启动/关闭集群，所以Hadoop目前不支持不同节点配置不同的ssh端口。
方案一：手动一个个节点启动，可以不用ssh
方案二：自己写ssh启动脚本
方案三：修改ssh配置
方案四：端口转发（这种做法还不如直接直接使用方案三）
5、Address 192.168.2.92 maps to mycluster1, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
修改hosts文件， 使192.168.2.92与mycluster1能唯一对应起来。
6、WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
系统中的glibc的版本和libhadoop.so需要的版本不一致导致的：
|
[mycluster@mycluster1 ~]$ ls -l /lib/libc.so.* lrwxrwxrwx 1 root root 11 Apr 18 2012 /lib/libc.so.6 -> libc-2.5.so [mycluster@mycluster1 ~]$ file /lib/libc-2.5.so /lib/libc-2.5.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.9, not stripped [mycluster@mycluster1 ~]$ file hadoop-2.5.0/lib/native/libhdfs.so.0.0.0 hadoop-2.5.0/lib/native/libhdfs.so.0.0.0: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), not stripped |
解决方案：
1、重新编译hadoop
2、升级gcc
此警告影响的范围:
1、 压缩算法
7、执行MR程序时的通信失败一：MR_AM启动Task时网络失败
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[mycluster@mycluster1 ~]$ hadoop-2.5.0/bin/hadoop jar hadoop-2.5.0/share/hadoop/mapreduce/hadoop-mapreduce-examples-2.5.0.jar pi 2 2 Number of Maps = 2 Samples per Map = 2 14/09/19 16:47:46 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable Wrote input for Map #0 Wrote input for Map #1 Starting Job 14/09/19 16:47:47 INFO client.RMProxy: Connecting to ResourceManager at mycluster1/192.168.2.92:8032 14/09/19 16:47:47 INFO input.FileInputFormat: Total input paths to process : 2 14/09/19 16:47:47 INFO mapreduce.JobSubmitter: number of splits:2 14/09/19 16:47:47 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1411112681877_0004 14/09/19 16:47:48 INFO impl.YarnClientImpl: Submitted application application_1411112681877_0004 14/09/19 16:47:48 INFO mapreduce.Job: The url to track the job: http://mycluster1:8088/proxy/application_1411112681877_0004/ 14/09/19 16:47:48 INFO mapreduce.Job: Running job: job_1411112681877_0004 14/09/19 16:48:09 INFO mapreduce.Job: Job job_1411112681877_0004 running in uber mode : false 14/09/19 16:48:09 INFO mapreduce.Job: map 0% reduce 0% # 这里应该是MR_AM启动Task（详细信息查看日志） 14/09/19 16:48:09 INFO mapreduce.Job: Job job_1411112681877_0004 failed with state FAILED due to: Application application_1411112681877_0004 failed 2 times due to Error launching appattempt_1411112681877_0004_000002. Got exception: java.net.ConnectException: Call From mycluster1/192.168.2.92 to localhost:59163 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused ... 9 more . Failing the application. 14/09/19 16:48:09 INFO mapreduce.Job: Counters: 0 Job Finished in 22.193 seconds # Job异常退出，无结果文件，导致以下错误（这个无关紧要） java.io.FileNotFoundException: File does not exist: hdfs://192.168.2.92:9100/user/mycluster/QuasiMonteCarlo_1411116465638_1171059364/out/reduce-out |
解决方案：
注释掉hosts文件中，关于localhost的配置
8、MySQL 驱动包版本
(参考：http://dev.mysql.com/doc/connector-j/en/connector-j-versions.html)
9、配置NFS
服务器端：
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rpm -qa | grep nfs yum install nfs-utils rpcbind # 非centos6可能不是这名字 mkdir /home/mycluster_nfs vi /etc/exports |
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# 将NFS Server 的/home/mycluster_nfs/ 共享给192.168.2.88/92，权限读写。 /home/mycluster_nfs 192.168.2.88(rw) /home/mycluster_nfs 192.168.2.92(rw) |
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service rpcbind start service nfs start exportfs showmount -e #默认查看自己共享的服务，前提是要DNS能解析自己，不然容易报错 showmount -a #显示已经与客户端连接上的目录信息 chmod 777 -R /home/mycluster_nfs/ |
客户端：
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showmount -e mycluster11 #查询NFS的共享状态 mkdir /home/mycluster_nfs mount mycluster11:/home/mycluster_nfs /home/mycluster_nfs |
10、zkService.sh status 报错
报错信息：
|
[mycluster@mycluster4 ~]$ zkServer.sh status JMX enabled by default Using config: /home/mycluster/zookeeper-3.4.6/bin/../conf/zoo.cfg Error contacting service. It is probably not running. |
网上找到三种情况：
1. 没有装nc ： yum install nc
2. 修改zkService.sh
打开zkServer.sh，找到
STAT=`echo stat | nc localhost $(grep clientPort "$ZOOCFG" | sed -e ‘s/.*=//‘) 2> /dev/null| grep Mode`
这行，加上或去掉-q 1（数字1而非字母l） 即可。
3. /etc/hosts里面没有配置localhost
11、编译Sqoop
Complit sqoop 1.4.5 for hadoop 2.5.0
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-- 编译前准备：看了一下 README.txt文件，需要以下软件包： |
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Additionally, building the documentation requires these tools:
* asciidoc * make * python 2.5+ * xmlto * tar * gzip |
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yum -y install ant yum -y install asciidoc yum -y install make yum -y install xmlto yum -y install tar yum -y install gzip
-- python 自己去安装
----------------------------------------------------------------------------------------------------------------------------- -- 第一步：解压 sqoop-1.4.5.tar.gz 文件到 /opt/software目录下(在该目录下将生成 sqoop-1.4.5 文件夹) cd /opt/software tar -xvf sqoop-1.4.5.tar.gz
----------------------------------------------------------------------------------------------------------------------------- -- 第二步：cd 到 sqoop-1.4.5 文件夹, 修改build.xml文件中指定的hadoop版本为2.5.0 cd /opt/software/sqoop-1.4.5
vi build.xml |
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<elseif> <equals arg1="${hadoopversion}" arg2="200" /> <then> <property name="hadoop.version" value="2.5.0" /> <property name="hbase.version" value="0.94.2" /> <property name="zookeeper.version" value="3.4.2" /> <property name="hadoop.version.full" value="2.5.0" /> <property name="hcatalog.version" value="0.13.1" /> </then> </elseif> |
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-- 第三步：运行ant package [root@funshion-hadoop194 sqoop-1.4.5]# ant package
...
[ivy:resolve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
BUILD FAILED /opt/software/sqoop-1.4.5/build.xml:1282: impossible to resolve dependencies: resolve failed - see output for details
Total time: 27 seconds
[ivy:resolve] com.google.protobuf#protobuf-java;2.5.0 by [com.google.protobuf#protobuf-java;2.5.0] in [hadoop200] --------------------------------------------------------------------- | | modules || artifacts | | conf | number| search|dwnlded|evicted|| number|dwnlded| --------------------------------------------------------------------- | hadoop200 | 154 | 59 | 58 | 37 || 120 | 48 | --------------------------------------------------------------------- [ivy:resolve] [ivy:resolve] :: problems summary :: [ivy:resolve] :::: WARNINGS [ivy:resolve] [FAILED ] org.mortbay.jetty#jetty;6.1.26!jetty.zip: (0ms) [ivy:resolve] ==== fs: tried [ivy:resolve] /root/.m2/repository/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] ==== apache-snapshot: tried [ivy:resolve] https://repository.apache.org/content/repositories/snapshots/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] ==== datanucleus: tried [ivy:resolve] http://www.datanucleus.org/downloads/maven2/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] ==== cloudera-releases: tried [ivy:resolve] https://repository.cloudera.com/content/repositories/releases/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] ==== cloudera-staging: tried [ivy:resolve] https://repository.cloudera.com/content/repositories/staging/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] ==== maven2: tried [ivy:resolve] http://repo1.maven.org/maven2/org/mortbay/jetty/jetty/6.1.26/jetty-6.1.26.zip [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] :: FAILED DOWNLOADS :: [ivy:resolve] :: ^ see resolution messages for details ^ :: [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] :: org.mortbay.jetty#jetty;6.1.26!jetty.zip [ivy:resolve] :::::::::::::::::::::::::::::::::::::::::::::: [ivy:resolve] [ivy:resolve] :: USE VERBOSE OR DEBUG MESSAGE LEVEL FOR MORE DETAILS
[ivy:resolve] io.netty#netty;3.4.0.Final by [io.netty#netty;3.6.2.Final] in [hadoop200test] [ivy:resolve] asm#asm;[3.0, 4.0) by [asm#asm;3.1] in [hadoop200test] [ivy:resolve] asm#asm;3.1 by [asm#asm;3.2] in [hadoop200test] [ivy:resolve] com.google.protobuf#protobuf-java;2.5.0 by [com.google.protobuf#protobuf-java;2.5.0] in [hadoop200test] --------------------------------------------------------------------- | | modules || artifacts | | conf | number| search|dwnlded|evicted|| number|dwnlded| --------------------------------------------------------------------- | hadoop200test | 156 | 0 | 0 | 38 || 121 | 0 | ---------------------------------------------------------------------
-- 错误1（如上）解决方法：单独下载 jetty-6.1.26.zip 文件到 /root/.m2/repository/org/mortbay/jetty/jetty/6.1.26/目录下，解决。
------------------------------------------------------------------------------ [ivy:resolve] com.google.protobuf#protobuf-java;2.5.0 by [com.google.protobuf#protobuf-java;2.5.0] in [hadoop200test] --------------------------------------------------------------------- | | modules || artifacts | | conf | number| search|dwnlded|evicted|| number|dwnlded| --------------------------------------------------------------------- | hadoop200test | 156 | 2 | 2 | 38 || 121 | 2 | ---------------------------------------------------------------------
ivy-retrieve-hadoop-test: [ivy:retrieve] :: retrieving :: com.cloudera.sqoop#sqoop [sync] [ivy:retrieve] confs: [hadoop200test] [ivy:retrieve] 121 artifacts copied, 0 already retrieved (113206kB/376ms)
compile-test: [mkdir] Created dir: /opt/software/sqoop-1.4.5/build/test/classes [mkdir] Created dir: /opt/software/sqoop-1.4.5/build/test/extraconf [javac] Compiling 169 source files to /opt/software/sqoop-1.4.5/build/test/classes [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.6 [javac] /opt/software/sqoop-1.4.5/src/test/org/apache/sqoop/TestExportUsingProcedure.java:244: error: method repeat in class StringUtils cannot be applied to given types; [javac] sql.append(StringUtils.repeat("?", ", ", [javac] ^ [javac] required: String,int [javac] found: String,String,int [javac] reason: actual and formal argument lists differ in length [javac] Note: Some input files use or override a deprecated API. [javac] Note: Recompile with -Xlint:deprecation for details. [javac] Note: Some input files use unchecked or unsafe operations. [javac] Note: Recompile with -Xlint:unchecked for details. [javac] 1 error [javac] 1 warning
BUILD FAILED /opt/software/sqoop-1.4.5/build.xml:433: Compile failed; see the compiler error output for details.
Total time: 15 minute 9 seconds
-- 错误2（如上），解决方法： ------------- vi +244 /opt/software/sqoop-1.4.5/src/test/org/apache/sqoop/TestExportUsingProcedure.java sql.append(StringUtils.repeat("?", ", ",
-- 将第244行修改为如下： sql.append(StringUtils.repeat("?,",
-- 继续重新运行 ant package，最后我们将看到：BUILD SUCCESSFUL 字样，表示编译成功。
...
-- 然后的/opt/software/sqoop-1.4.5/build目录下将生成 sqoop-1.4.5.bin__hadoop-2.5.0的文件夹，这就是我们的安装文件，将其压缩： cd /opt/software/sqoop-1.4.5/build tar -cvf sqoop-1.4.5.bin__hadoop-2.5.0.tar.gz ./sqoop-1.4.5.bin__hadoop-2.5.0
sqoop-1.4.5.bin__hadoop-2.5.0.tar.gz文件就是我们需要的sqoop安装包了。
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原文：http://blog.csdn.net/yameing/article/details/39891805
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