elasticsearch集群健康状态查看

1. 查看ES集群健康状态

http://localhost:9200/_cluster/health?pretty

响应：

{

  "cluster_name" : "if2c",

  "status" : "yellow",   //集群的状态红绿灯，绿：健康，黄：亚健康，红：病态

  "timed_out" : false,

  "number_of_nodes" : 1, //节点数

  "number_of_data_nodes" : 1, //数据节点数

  "active_primary_shards" : 3, //分片数，3个Index库

  "active_shards" : 3,

  "relocating_shards" : 0,

  "initializing_shards" : 0,

  "unassigned_shards" : 3  //未指定节点，配置了复本，仅使用一台机器部署会出现这种情况

}

查看指定索引库的健康状态
http://localhost:9200/_cluster/health/index_name?pretty
http://localhost:9200/_cluster/health/index_name,index_name2?pretty