扩展elasticsearch

####横向扩展添加新节点
配置:

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cluster.name: my-application
node.name: es4.xxx.com
path.data: /es
path.logs: /es/logs
network.host: 172.16.0.24
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["172.16.0.25","172.16.0.26","172.16.0.24","172.16.0.57","172.16.0.58"]

错误：

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ERROR:
	nested: IllegalArgumentException[No custom metadata prototype registered for type [licenses], node like missing plugins];
Solution:

解决：

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./bin/plugin install license
./bin/plugin install mobz/elasticsearch-head

####纵向扩展升级原有节点

######1.关闭自动分片

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curl -XPUT http://172.16.0.27:9200/_cluster/settings -d'
 {
     "transient" : {
         "cluster.routing.allocation.enable" : "none"
     }
 }'

######2.升级配置，重启节点

######3.开启自动分片

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curl -XPUT http://172.16.0.27:9200/_cluster/settings -d'
{
    "transient" : {
        "cluster.routing.allocation.enable" : "all"
    }
}'

#####参考
http://www.tuicool.com/articles/RF7RBza