3 ES集群健康检测

Cluster Health 获取集群的健康状态，整个集群状态包括以下三种:
1.green 健康状态，指所有主副分片都正常分配
2.yellow 指所有主分片都正常分配，但是有副本分片未正常分配
3.red 有主分片未分配，表示索引不完备，写可能有问题。（但不代表不能存储数据和读取数据）

检查 ES 集群是否正常运行，可以通过 curl、Cerebro两种方式；

3.1 Curl命令检查集群状态

[root@es-node1 elasticsearch]# curl http://172.16.1.161:9200/_cluster/health?pretty=true
{
  "cluster_name" : "my-application",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 3,
  "number_of_data_nodes" : 3,
  "active_primary_shards" : 1,
  "active_shards" : 2,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 100.0
}

# 可以自定义监控项传递给zabbix监控
curl  -s http://172.16.1.161:9200/_cluster/health?pretty=true | grep "status" | awk -F '"' '{print $4}'

3.2 Cerebor检查集群状态

可视化 cerebro 工具检查 ES 集群状态
https://github.com/lmenezes/cerebro/releases

[root@es-node1 ~]# rpm -ivh cerebro-0.9.4-1.noarch.rpm
[root@es-node1 ~]# vim/etc/cerebro/application.conf
data.path: "/var/lib/cerebro/cerebro.db"
#data.path = "./cerebro.db"
[root@es-node1 ~]# systemctl start cerebro
[root@es-node1 ~]# netstat -lntp | grep java
tcp6       0      0 :::9000                 :::*                    LISTEN      4646/java

ES集群健康检测_vim

ES集群健康检测_elasticsearch_02