1. Download

• Download the Linux64(TAR) package from the official website or local community. This article uses the latest version 7.10.2 as an example
  • Official website download address
  • Chinese forum download address

2. Install

1. Create a new user in Linux to install and run ES (using user name “ES” as an example)

useradd es -s /bin/bash
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ES cannot run under root and a new user must be created to run ES

2. If the installation package is downloaded or uploaded using root, you need to change the user and user group of the installation package

Chown -r es: es elasticsearch - 7.10.2 - Linux - x86_64. Tar. GzCopy the code

3. Create directories for storing logs and data

mkdir -p /data/logs/es
mkdir -p /data/es/{data,work,plugins,scripts}
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4. Decompress the installation package

Tar - ZXVF elasticsearch 7.10.2 - Linux - x86_64. Tar. GzCopy the code

Configuration of 3.

5. Modify the configuration

Vi {ES decompressed directory}/conf/ elasticSearch.ymlConfigure the node name
node.name: node-1

# Change the directory where the data is stored
path.data: /data/es/data
# Change the directory for storing logs
path.logs: /data/logs/es

Set the IP address that allows access to ES to 0.0.0.0 to allow all sourcesNetwork. The host: 0.0.0.0Configure the IP address of the current server
discovery.seed_hosts: ["* *. * *. * *. * *"]

Configure the initial primary node
cluster.initial_master_nodes: ["node-1"]

Allow cross-domain configuration, if you need to use browser client links
http.cors.enabled: true
http.cors.allow-origin: "*"
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6. Modify system-related configurations

   • You can change the maximum number of open files and the maximum number of threads for each process. The changes take effect after you log in again

       vi /etc/security/limits.conf
       
       Add the following configuration to the end of the configuration file to change the maximum value, save and log in again
       *               soft    nofile            65536
       *               hard    nofile            65536
       *               soft    nproc            4096
       *               hard    nproc            4096
      
      Check whether the maximum number of open files for each process is changed successfully
      ulimit -Hn
      ulimit -Sn
      
      Check whether the maximum number of threads is changed successfully
      ulimit -Hu
      ulimit -Su
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   • Change the maximum virtual memory size to 262144

       vi /etc/sysctl.conf
       
       Add the following configuration to the end of the configuration file to change the maximum value, save and exit
       vm.max_map_count=262144
       
       # Effective configuration
       sysctl -p
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4. Start and verify the configuration

7. Start the ES

Start the daemon with the -d argument./{ES unzip directory} /bin/elasticSearch -dCopy the code

8. Verify that the startup is normal

• If the following JSON is returned, the installation and startup are successful

{
  "name" : "es01"."cluster_name" : "elasticsearch"."cluster_uuid" : "_na_"."version" : {
    "number" : "7.10.2"."build_flavor" : "default"."build_type" : "tar"."build_hash" : "747e1cc71def077253878a59143c1f785afa92b9"."build_date" : "The 2021-01-13 T00: let 435326 z"."build_snapshot" : false."lucene_version" : "8.7.0"."minimum_wire_compatibility_version" : "6.8.0"."minimum_index_compatibility_version" : "6.0.0 - beta1"
  },
  "tagline" : "You Know, for Search"
}
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5. Install ES standalone version on Docker

• For details about installation and configuration, refer to the guide on the official website. You can use the following command to create a standalone ES server

# pull ES mirrorDocker pull elasticsearch: 7.12.0Create ES container
docker run -di --name es -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node"Elasticsearch: 7.12.0ES is installed in /usr/share/elasticsearch
docker exec -it es /bin/bash
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Note: ElasticSearch is not recommended for production use on Docker because it is an IO sensitive application (similar to a database)