OpenNMS 事件轉儲 Elasticsearch

準備條件

1 軟件及版本

??? CentOS-7-x86_64
??? OpenNMS 25.1.0
??? elasticsearch-7.4.2-linux-x86_64.tar.gz
??? kibana-7.4.2-linux-x86_64.tar.gz

2 服務器

地址??????? 192.168.1.80??????? 192.168.1.81

安裝??????? opennms??????????? elasticsearch/kibana
Elasticsearch 配置

vi config/elasticsearch.yml
找到并修改如下參數

??? node.name: node-1
??? network.host: 0.0.0.0
??? cluster.initial_master_nodes: ["node-1"]

設置用戶權限

??? xpack.security.enabled: true
??? xpack.security.transport.ssl.enabled: true
??? xpack.security.transport.ssl.verification_mode: certificate
??? xpack.security.transport.ssl.keystore.path: elastic-certificates.p12
??? xpack.security.transport.ssl.truststore.path: elastic-certificates.p12

問題

[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]

解決
vi /etc/security/limits.conf

??? * soft nofile 65536
??? ?
??? * hard nofile 131072
??? ?
??? * soft nproc 2048
??? ?
??? * hard nproc 4096

[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

解決
vi /etc/sysctl.conf

vm.max_map_count=262144

sysctl -p

臨時設置

sysctl -w vm.max_map_count=262144

啟動

bin/elasticsearch -d

設置密碼

bin/elasticsearch-setup-passwords interactive

驗證

curl http://192.168.1.81:9200 -u elastic:elastic

Kibana 配置

vi config/kibana.yml

修改如下參數

??? server.host: "192.168.1.81"
??? ?
??? elasticsearch.username: "kibana"
??? elasticsearch.password: "kibana"

訪問

??? http://192.168.1.81:5601
??? elastic/elastic

OpenNMS 配置

vi etc/org.opennms.plugin.elasticsearch.rest.forwarder.cfg
添加如下參數

??? elasticUrl=http://192.168.1.81:9200
??? elasticIndexStrategy=daily
??? globalElasticUser=elastic
??? globalElasticPassword=elastic


啟用 opennms-es-rest
?

??? ssh -p8101 admin@localhost
??? 登錄karaf 密碼：admin
??? ?
??? 執行命令
??? feature:install opennms-es-rest

查看數據

登錄Kibana，用戶/密碼：elastic/elastic

進入 Dev Tools，在Console 執行命令

GET /opennms-events-*/_search