部署elasticsearch集群,配置文件可“濃縮”為以下：
cluster.name: es_cluster
node.name: node1
path.data: /app/data/elasticsearch
path.logs: /app/logs/elasticsearch
network.host: 192.168.x.x
http.port: 9200
transport.tcp.port: 9201
discovery.zen.ping.unicast.hosts: ["node1", "node2","node3"]
discovery.zen.minimum_master_nodes: 2
gateway.recover_after_nodes: 3
gateway.expected_nodes: 3
gateway.recover_after_time: 5m
http.cors.enabled: true
http.cors.allow-origin: "*"
thread_pool.bulk.queue_size: 500
xpack.security.enabled: false
下載插件進行並進行安裝
插件下載地址： https://github.com/vvanholl/elasticsearch-prometheus-exporter/releases
安裝: 如果有elk單獨用戶,切換到該用戶下, wget下載，進入到es安裝目錄,執行 ./elasticsearch-plugin install file://$(pwd)/../../elasticsearch-prometheus-exporter-6.4.2.0.zip 即可完成安裝
配置Prometheus, 添加如下配置，並重新啟動Prometheus
- job_name: 'elasticsearch'
scrape_interval: 30s
metrics_path: "/_prometheus/metrics"
static_configs:
- targets:
- 192.168.x.x:9200
- 192.168.x.x:9200
- 192.168.x.x:9200
配置Grafana, 導入模板，編號建議為 266 (https://grafana.com/dashboards/266) 選擇數據源為 Prometheus , 添加即可，會出現如下的監控圖