目錄
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準備環境
1.修改Linux主機名
2.修改IP
3.修改主機名和IP的映射關係 /etc/hosts
4.關閉防火牆
5.ssh免登陸
6.安裝JDK,配置環境變量等
7.注意集羣時間要同步
8.配置zooekeeper集羣
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集羣部署節點角色的規劃(3節點)
node01 namenode resourcemanager zkfc nodemanager datanode zookeeper journal node
node02 namenode resourcemanager zkfc nodemanager datanode zookeeper journal node
node03 datanode nodemanager zookeeper journal node
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安裝配置hadoop集羣
解壓
tar -zxvf ./hadoop-2.6.0-cdh5.14.0.tar.gz -C ../servers/
將hadoop添加到環境變量中
vim /etc/profile.d/hadoop.sh
export HADOOP_HOME=/export/servers/hadoop-2.6.0-cdh5.14.0
export PATH=:$HADOOP_HOME/bin:$HADOOP_HOME/sbin:$PATH
配置生效
source /etc/profile
修改hadoop-env.sh
vim /export/servers/hadoop-2.6.0-cdh5.14.0/etc/hadoop/hadoop-env.sh
export JAVA_HOME=${JAVA_HOME}
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修改core-site.xml
<configuration>
<!-- 集羣名稱在這裏指定!該值來自於hdfs-site.xml中的配置 -->
<property>
<name>fs.defaultFS</name>
<value>hdfs://cluster1</value>
</property>
<!-- 這裏的路徑默認是NameNode、DataNode、JournalNode等存放數據的公共目錄 -->
<property>
<name>hadoop.tmp.dir</name>
<value>/export/servers/hadoop-2.6.0-cdh5.14.0/HAhadoopDatas/tmp</value>
</property>
<!-- ZooKeeper集羣的地址和端口。注意,數量一定是奇數,且不少於三個節點-->
<property>
<name>ha.zookeeper.quorum</name>
<value>node01:2181,node02:2181,node03:2181</value>
</property>
</configuration>
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修改hdfs-site.xml
<configuration>
<!--指定hdfs的nameservice爲cluster1,需要和core-site.xml中的保持一致 -->
<property>
<name>dfs.nameservices</name>
<value>cluster1</value>
</property>
<!-- cluster1下面有兩個NameNode,分別是nn1,nn2 -->
<property>
<name>dfs.ha.namenodes.cluster1</name>
<value>nn1,nn2</value>
</property>
<!-- nn1的RPC通信地址 -->
<property>
<name>dfs.namenode.rpc-address.cluster1.nn1</name>
<value>node01:8020</value>
</property>
<!-- nn1的http通信地址 -->
<property>
<name>dfs.namenode.http-address.cluster1.nn1</name>
<value>node01:50070</value>
</property>
<!-- nn2的RPC通信地址 -->
<property>
<name>dfs.namenode.rpc-address.cluster1.nn2</name>
<value>node02:8020</value>
</property>
<!-- nn2的http通信地址 -->
<property>
<name>dfs.namenode.http-address.cluster1.nn2</name>
<value>node02:50070</value>
</property>
<!-- 指定NameNode的edits元數據在JournalNode上的存放位置 -->
<property>
<name>dfs.namenode.shared.edits.dir</name>
<value>qjournal://node01:8485;node02:8485;node03:8485/cluster1</value>
</property>
<!-- 指定JournalNode在本地磁盤存放數據的位置 -->
<property>
<name>dfs.journalnode.edits.dir</name>
<value>/export/servers/hadoop-2.6.0-cdh5.14.0/journaldata</value>
</property>
<!-- 開啓NameNode失敗自動切換 -->
<property>
<name>dfs.ha.automatic-failover.enabled</name>
<value>true</value>
</property>
<!-- 指定該集羣出故障時,哪個實現類負責執行故障切換 -->
<property>
<name>dfs.client.failover.proxy.provider.cluster1</name>
<value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value>
</property>
<!-- 配置隔離機制方法,多個機制用換行分割,即每個機制暫用一行-->
<property>
<name>dfs.ha.fencing.methods</name>
<value>
sshfence
</value>
</property>
<!-- 使用sshfence隔離機制時需要ssh免登陸 -->
<property>
<name>dfs.ha.fencing.ssh.private-key-files</name>
<value>/root/.ssh/id_rsa</value>
</property>
<!-- 配置sshfence隔離機制超時時間 -->
<property>
<name>dfs.ha.fencing.ssh.connect-timeout</name>
<value>30000</value>
</property>
</configuration>
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修改mapred-site.xml
<configuration>
<!-- 指定mr框架爲yarn方式 -->
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
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修改yarn-site.xml
<configuration>
<!-- 開啓RM高可用 -->
<property>
<name>yarn.resourcemanager.ha.enabled</name>
<value>true</value>
</property>
<!-- 指定RM的cluster id -->
<property>
<name>yarn.resourcemanager.cluster-id</name>
<value>yrc</value>
</property>
<!-- 指定RM的名字 -->
<property>
<name>yarn.resourcemanager.ha.rm-ids</name>
<value>rm1,rm2</value>
</property>
<!-- 分別指定RM的地址 -->
<property>
<name>yarn.resourcemanager.hostname.rm1</name>
<value>node01</value>
</property>
<property>
<name>yarn.resourcemanager.hostname.rm2</name>
<value>node02</value>
</property>
<!-- 指定zk集羣地址 -->
<property>
<name>yarn.resourcemanager.zk-address</name>
<value>node01:2181,node02:2181,node03:2181</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>
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修改slaves
node01
node02
node03
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將軟件拷貝到所有節點
scp -r /export/servers/hadoop-2.6.0-cdh5.14.0 node02:$PWD
scp -r /export/servers/hadoop-2.6.0-cdh5.14.0 node03:$PWD
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配置免密碼登陸
要配置node01到node01、node02、node03 的免密碼登陸(node01)
ssh-keygen
ssh-coyp-id node01
ssh-coyp-id node02
ssh-coyp-id node03
兩個namenode之間要配置ssh免密碼登陸 ssh遠程補刀時候需要(node02)
ssh-keygen
ssh-coyp-id node01
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啓動zookeeper集羣
分別在node01、node02、node03上啓動zk
cd /export/servers/zookeeper-3.4.5-cdh5.14.0/bin/
./zkServer.sh start
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手動啓動journalnode
分別在在node01、node02、node03上執行
cd /export/servers/hadoop-2.6.0-cdh5.14.0/sbin
hadoop-daemon.sh start journalnode
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格式化namenode
在node01上執行命令
格式化後會在根據core-site.xml中的hadoop.tmp.dir配置的目錄下生成個hdfs初始化文件
hdfs namenode -format
把hadoop.tmp.dir配置的目錄下所有文件拷貝到另一臺namenode節點所在的機器
cd /export/servers/hadoop-2.6.0-cdh5.14.0
scp -r ./HAhadoopDatas node02:$PWD
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格式化ZKF(在active上執行即可)
hdfs zkfc -f
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啓動HDFS(在node01上執行)
start-dfs.sh
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啓動YARN
在active節點上啓動
start-yarn.sh
在standby節點上手動啓動備份的resourcemanager
yarn-daemon.sh start resourcemanager
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瀏覽器訪問
NameNode (active) :http://192.168.100.201:50070/dfshealth.html#tab-overview
NameNode (standby) :http://192.168.100.202:50070/dfshealth.html#tab-overview
ResourceManager (active) :http://192.168.100.201:8088/cluster/cluster