Configure and deploy Elasticsearch

IntelliService uses Elasticsearch as the database to store all the data. Install and configure a VM and deploy clean IntelliService schema in it.

Prerequisites

To configure Elasticsearch in VM, follow the steps below:

1. Open Linux terminal, and enter the following commands one by one in the VM:

   wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.7-linux-x86_64.tar.gz
   tar -xzf elasticsearch-7.17.7-linux-x86_64.tar.gz
   cd elasticsearch-7.17.7/

2. Copy stopword and synonym folders available in Elasticsearch_Files_Schema folder into the config folder of Elasticsearch.
   Note: These folders are available as part of the elasticsearch_files_schema folder in the package intelliservice-12.1.7.zip file.
3. Run the following commands in the command prompt from the Elasticsearch bin folder to configure the carrot2 and ingest plug-ins.

   ./elasticsearch-plugin install ingest-attachment
   ./elasticsearch-plugin install org.carrot2:elasticsearch-carrot2:7.17.7

4. Open config/elasticsearch.yaml of Elasticsearch, and update the values below:
   • network.host: 0.0.0.0
   • transport.host: localhost
5. Similarly, open Config/jvm.options file, and update the values below:
   • -Xms6g
   • -Xmx6g
6. Now, start Elasticsearch from bin folder.
   Note: As a best practice, configure this as a start-up script to avoid unwanted restarting of Elasticsearch, whenever the VM restarts.