ES集群health为yellow解决办法

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Logstash导入数据后，Cerebro显示集群health的状态为yellow

解决办法

 curl http://localhost:9200/_cat/indices\?v

 curl http://localhost:9200/_cluster/health?pretty=true

 curl -H "Content-Type: application/json" -XPUT 'http://localhost:9200/_settings' -d '
 {
     "index" : {
         "number_of_replicas" :
     }
 }'

 curl http://localhost:9200/_cluster/health?pretty=true

再次查看Cerebro，health的状态为green