Zabbix监控elasticsearch集群健康状态
1.es提供了一个可以获取集群健康状态的api，访问http://url:9200/_cluster/health?pretty 和 Elasticsearch 里其他 API 一样，cluster-health 会返回一个 JSON 响应。
内容解析:
"cluster_name": "my-es", #集群名
"status": "yellow", #集群健康状态，正常的话是green，缺少副本分片为yellow，缺少主分片为red "timed_out": false,
"number_of_nodes": 1,#集群节点数
"number_of_data_nodes": 1,#数据节点数
"active_primary_shards": 15,#主分片数
"active_shards": 15,#可用的分片数
"relocating_shards": 0,#正在迁移的分片数
"initializing_shards": 0,#正在初始化的分片数
"unassigned_shards": 15, #未分配的分片，但在集群中存在
"delayed_unassigned_shards": 0, #延时待分配到具体节点上的分片数
"number_of_pending_tasks": 0, #待处理的任务数，指主节点创建索引并分配shards等任务
"number_of_in_flight_fetch": 0,
"task_max_waiting_in_queue_millis": 0,
"active_shards_percent_as_number": 50 #可用分片数占总分片的比例
2.编写采集脚本获取集群状态
vi es.py
#encoding=utf‐8 2 import requests,json 3 import sys 4 headers={"User‐Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.3 6 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36"} 5 response=requests.get("http://192.58.23.46:9200/_cluster/health",headers=header s) 6 s=json.loads(response.content.decode()) 7 parm=sys.argv[1] 8 9 itemlist=["cluster_name","status","timed_out","number_of_nodes","number_of_data_no des","active_primary_shards","active_shards","relocating_shards","initializing_shard s","unassigned_shards","delayed_unassigned_shards","number_of_pending_tasks","number _of_in_flight_fetch","task_max_waiting_in_queue_millis","active_shards_percent_as_nu mber"] 10 11 if parm not in itemlist: 12 print("parm failed") 13 sys.exit(1) 14 else: 15 print(s[parm])
2.1 给脚本赋予执行权限
chmod +x /monitor_es.py
2.2 修改zabbix-agent配置文件
vim userparameter_es.conf
UserParameter=es.[*],/usr/bin/python /home/zabbix_agents/es.py $1
2.3 重启zabbix-agent
2.4 创建监控项(详细见Zabbix官网)
2.5 查看最新数据
