配置RS的高可用

0、stop-yarn.sh ====== 关闭yarn集群

1、nano /soft/hadoop/etc/hadoop/yarn-site.xml，添加以下内容：

    yarn.resourcemanager.ha.enabled
    true


    yarn.resourcemanager.cluster-id
    cluster1


    yarn.resourcemanager.ha.rm-ids
    rm1,rm2


    yarn.resourcemanager.hostname.rm1
    s101


    yarn.resourcemanager.hostname.rm2
    s105


    yarn.resourcemanager.webapp.address.rm1
    s101:8088


    yarn.resourcemanager.webapp.address.rm2
    s105:8088


    yarn.resourcemanager.zk-address
    s102:2181,s103:2181,s104:2181

2、xsync.sh /soft/hadoop/etc/hadoop/yarn-site.xml ====== 分发配置文件

3、nano /soft/hadoop/etc/hadoop/masters，添加以下内容：

s101
s105

4、nano /soft/hadoop/sbin/start-yarn.sh，修改文件内容

"$bin"/yarn-daemons.sh --config $YARN_CONF_DIR --hosts masters start resourcemanager
"$bin"/yarn-daemons.sh --config $YARN_CONF_DIR --hosts masters stop resourcemanager

5、start-yarn.sh ====== 启动yarn

6、nano /soft/hbase/conf/backup-masters，配置hbase高可用，添加以下内容：

s105

注：hmaster默认支持高可用