ElasticSearch and my opinion

I switch jobs before few days, during my job interview, my interviewer at SpyreSync asked me about ElasticSearch. Before that, I just read a few articles and some documents on ElasticSearch. I go on the website and start scrolling and found this area

It makes me interested in this technology. This platform is built on Apache Lucene, a free and open-source search engine software library. It is an open-source tool in JAVA. I discover other tools as well, built on Apache Lucene. I find many interesting tools. This all research open a new direction of learning in front of me.

From last years, Elastic Search and its components are getting fame. We are calling these tools, Elastic Stack. I found a great definition from a website.

At its core, you can think of Elasticsearch as a server that can process JSON requests and give you back JSON data.
Source: Knowi

I recommend you all to read the following article:

Elasticsearch: What it is, How it works, and what it's used for

I am just putting Docker compose file. docker-compose.yml

version: '2.2'
services:
  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.15.2
    container_name: es01
    environment:
      - node.name=es01
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es02,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data01:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
    networks:
      - elastic
es02:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.15.2
    container_name: es02
    environment:
      - node.name=es02
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es01,es03
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data02:/usr/share/elasticsearch/data
    networks:
      - elastic
es03:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.15.2
    container_name: es03
    environment:
      - node.name=es03
      - cluster.name=es-docker-cluster
      - discovery.seed_hosts=es01,es02
      - cluster.initial_master_nodes=es01,es02,es03
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:
      memlock:
        soft: -1
        hard: -1
    volumes:
      - data03:/usr/share/elasticsearch/data
    networks:
      - elastic
kib01:
    image: docker.elastic.co/kibana/kibana:7.15.2
    container_name: kib01
    ports:
      - 5601:5601
    environment:
      ELASTICSEARCH_URL: http://es01:9200
      ELASTICSEARCH_HOSTS: '["http://es01:9200","http://es02:9200","http://es03:9200"]'
    networks:
      - elastic
volumes:
  data01:
    driver: local
  data02:
    driver: local
  data03:
    driver: local
networks:
  elastic:
    driver: bridge

You can run this on your docker. You can read the documentation

Elastic Stack and Product Documentation

But I am still interested in https://lucene.apache.org/ because it is the base technology behind the Elastic Search. Many tools were developed using this technology. My interest is going with the Opensearch. Let see…