Shulou(Shulou.com)06/01 Report--

Preparation condition

1 Software and version

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 server

Address 192.168.1.80 192.168.1.81

Install opennms elasticsearch/kibana

Elasticsearch configuration

Vi config/elasticsearch.yml

Find and modify the following parameters

Node.name: node-1

Network.host: 0.0.0.0

Cluster.initial_master_nodes: ["node-1"]

Set user permissions

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

problem

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

Solve

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]

Solve

Vi / etc/sysctl.conf

Vm.max_map_count=262144

Sysctl-p

Temporary settin

Sysctl-w vm.max_map_count=262144

Start

Bin/elasticsearch-d

Set password

Bin/elasticsearch-setup-passwords interactive

Verification

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

Kibana configuration

Vi config/kibana.yml

Modify the following parameters

Server.host: "192.168.1.81"

Elasticsearch.username: "kibana"

Elasticsearch.password: "kibana"

Visit

Http://192.168.1.81:5601

Elastic/elastic

OpenNMS configuration

Vi etc/org.opennms.plugin.elasticsearch.rest.forwarder.cfg

Add the following parameters

ElasticUrl= http://192.168.1.81:9200

ElasticIndexStrategy=daily

GlobalElasticUser=elastic

GlobalElasticPassword=elastic

Enable opennms-es-rest

Ssh-p8101 admin@localhost

Login karaf password: admin

Execute a command

Feature:install opennms-es-rest

View data

Log in to Kibana, user / password: elastic/elastic

Enter Dev Tools and execute the command in Console

GET / opennms-events-*/_search

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