cdh实现 impala deamon 和hiveserver2 ha 并在hue内集成他们jdbcha

安装haproxy实现ha Install the load balancer:  [email protected]:~#  yum -y install haproxy [email protected]:~# cp /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.bak 配置haproxy cat /etc/haproxy/haproxy.

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