走进大数据丨 企业级YARN部署
YARN的工作机制：
部署YARN的HA集群首先需要部署HDFS的HA:
1、环境准备
Linux是centos 7hadoop-2.8.4.tar.gzzookeeper-3.4.10.tar.gzjdk-8u144-linux-x64.tar.gz
2、集群规划
| bigdata111 |
bigdata112 |
bigdata113 |
NameNode |
NameNode | |
JournalNode |
JournalNode |
JournalNode |
DataNode |
DataNode |
DataNode |
| ZK |
ZK | ZK |
ResourceManager |
ResourceManager |
|
NodeManager |
NodeManager |
NodeManager |
3、集群部署，在部署成功HDFS的HA的基础上
3.1、修改yarn-site.xml配置文件
<configuration><property><name>yarn.nodemanager.aux-services</name><value>mapreduce_shuffle</value></property><!--启用resourcemanager ha--><property><name>yarn.resourcemanager.ha.enabled</name><value>true</value></property><!--声明两台resourcemanager的地址--><property><name>yarn.resourcemanager.cluster-id</name><value>cluster-yarn1</value></property><property><name>yarn.resourcemanager.ha.rm-ids</name><value>rm1,rm2</value></property><property><name>yarn.resourcemanager.hostname.rm1</name><value>bigdata111</value></property><property><name>yarn.resourcemanager.hostname.rm2</name><value>bigdata112</value></property><!--指定zookeeper集群的地址--><property><name>yarn.resourcemanager.zk-address</name><value>bigdata111:2181,bigdata112:2181,bigdata113:2181</value></property><!--启用自动恢复--><property><name>yarn.resourcemanager.recovery.enabled</name><value>true</value></property><!--指定resourcemanager的状态信息存储在zookeeper集群--><property><name>yarn.resourcemanager.store.class</name><value>org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore</value></property></configuration>
3.2、同步各个节点的配置文件
#拷贝到112节点scp /opt/module/HA/hadoop-2.8.4/etc/hadoop/yarn-site.xml root112:/opt/module/HA/hadoop-2.8.4/etc/hadoop/#拷贝到113节点scp /opt/module/HA/hadoop-2.8.4/etc/hadoop/yarn-site.xml root113:/opt/module/HA/hadoop-2.8.4/etc/hadoop/
3.3、在bigdata111中执行：
sbin/start-yarn.sh3.4、在bigdata112中执行：
sbin/yarn-daemon.sh start resourcemanage3.5、查看服务状态：
bin/yarn rmadmin -getServiceState rm13.6、使用bigdata111的ip登录YARN的web页面：ip:8088
恭喜，YARN的HA模式部署成功！