Install kuromoji on CentOS7

Development environment

centos7 on virtualbox elasticsearch 6.8.13 kibana 5.6.16 kuromoji 6.8.13 java 1.8.0_262

elasticsearch installation

· Java installation You can delete java7 and install java8

#yum remove -y java-1.7.0-openjdk
#yum install -y java-1.8.0-openjdk-devel
#yum install -y java-1.8.0-openjdk-debuginfo --enablerepo=*debug*

Version confirmation

java -version

・ Installation of elasticsearch Here we use rpm.

#rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Write the repository file.

#vim /etc/yum.repos.d/elasticsearch.repo
[elasticsearch-6.x]
name=Elasticsearch repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
auto-refresh=1
type=rpm-md

Install with yum.

yum install elasticsearch
systemctl enable elasticsearch

Let's start it.

systemctl start elasticsearch

When starting elasticsearch, it may fail to start if there is not enough memory on virtualbox. At that time, let's expand the memory

Test if it started with

#curl localhost:9200

If the following is displayed, it is successful.

{
  "name" : "hKlo_7Y",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "DhFQT2-iTiS_GDeGu8ysIw",
  "version" : {
    "number" : "6.8.13",
    "build_flavor" : "default",
    "build_type" : "rpm",
    "build_hash" : "be13c69",
    "build_date" : "2020-10-16T09:09:46.555371Z",
    "build_snapshot" : false,
    "lucene_version" : "7.7.3",
    "minimum_wire_compatibility_version" : "5.6.0",
    "minimum_index_compatibility_version" : "5.0.0"
  },
  "tagline" : "You Know, for Search"
}

Install kibana

kibana also uses rpm.

#rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

Write the kibana repository file.

#vim /etc/yum.repos.d/kibana.repo
[kibana-6.x]
name=Kibana repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

Let's install and start kibana

#yum install kibana
#systemctl enable kibana
#systemctl start  kibana

Edit the kibana.yml file to make it accessible to kibana.

#vim /etc/kibana/kibana.yml
server.host:“IP address”
elasticsearch.url: "http://localhost:9200"
#systemctl restart kibana

The firewall is stopped here. If you keep the firewall running, open the port. Don't forget to reboot after installing kibana and editing kibana.yml. I can't open it in my browser.

Let's open it in a browser http://IPアドレス:5601

Installation of kuromoji

#/usr/share/elasticsearch/bin/elasticsearch-plugin install analysis-kuromoji

Restart elasticsearch

#systemctl restart elasticsearch

If you check below whether kuromoji can be started,

#curl -X GET 'http://localhost:9200/_nodes/plugins?pretty'
{
  "_nodes" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "cluster_name" : "elasticsearch",
  "nodes" : {
    "hKlo_7YNQ6ix8b2BCz7aGQ" : {
      "name" : "hKlo_7Y",
      "transport_address" : "127.0.0.1:9300",
      "host" : "127.0.0.1",
      "ip" : "127.0.0.1",
      "version" : "6.8.13",
      "build_flavor" : "default",
      "build_type" : "rpm",
      "build_hash" : "be13c69",
      "roles" : [
        "master",
        "data",
        "ingest"
      ],
      "attributes" : {
        "ml.machine_memory" : "10082598912",
        "xpack.installed" : "true",
        "ml.max_open_jobs" : "20",
        "ml.enabled" : "true"
      },
      "plugins" : [
        {
          "name" : "analysis-kuromoji",
          "version" : "6.8.13",
          "elasticsearch_version" : "6.8.13",
          "java_version" : "1.8",
          "description" : "The Japanese (kuromoji) Analysis plugin integrates Lucene kuromoji analysis module into elasticsearch.",
          "classname" : "org.elasticsearch.plugin.analysis.kuromoji.AnalysisKuromojiPlugin",
          "extended_plugins" : [ ],
          "has_native_controller" : false
        }
      ],

Will continue like

You have now installed kuromoji. You can use kuromoji from the devtool console in the upper left of kibana ● Reference https://qiita.com/onlyzs/items/045fb33dbd6bd781ce23